What is the Munimetric score for Wisconsin?

Munimetric assigns a state-level average MISI score based on the individual scores of all covered community water systems in Wisconsin. The state average, band distribution, and market-level rankings are shown on this page. Higher MISI values indicate greater structural stress.

Which water systems in Wisconsin face the most infrastructure stress?

The state page ranks the highest-stress systems in Wisconsin by MISI score. Stress reflects operational burden, capital gaps, revenue fragility, rate affordability constraints, and governance risk, not a single compliance event. The headline remains a blended structural stress composite rather than a pure physical-condition index. Workflow actions remain reserved for account access.

How does Wisconsin compare to other states for drinking water infrastructure risk?

Wisconsin is compared against all 50 states and territories using average MISI score, market count, and band distribution. Munimetric tracks nationwide coverage across 9,000+ scored service markets.

Are there lead pipe or corrosion-related concerns in Wisconsin water systems?

Where lead and copper rule compliance data is available from EPA SDWA records, Munimetric factors it into the Operational Stress family score. Specific lead service line inventories vary by system. Individual system profiles contain the most detailed compliance context available.

Does Munimetric include PFAS monitoring context for Wisconsin water systems?

Munimetric summarizes stored PFAS monitoring context where public contaminant-monitoring records are available. Missing PFAS summaries remain missing records, not non-detections, and this public-record layer does not change the MISI score by itself.

What compliance signals are active in Wisconsin?

Munimetric tracks signals such as compliance escalation, monitoring and reporting failures, population decline, income erosion, data staleness, and parent-government fiscal stress across Wisconsin water systems.

Does Munimetric track boil water advisories in Wisconsin?

Munimetric does not track real-time boil water advisories. For current advisories, contact your local water utility or state drinking water program. Munimetric monitors structural conditions that provide context around system reliability over time.

How many covered systems in Wisconsin have recent recorded drinking-water violations?

Stored public records show 90 covered systems with recent drinking-water violations, with 518 recorded violations across 195 covered systems in the recent 3 years window.

How does Munimetric summarize PFAS public-record context in Wisconsin?

Stored contaminant-monitoring summaries are present for 181 covered systems; 70 systems have PFAS detection context in this state summary.

How does Munimetric summarize lead & copper context in Wisconsin?

Stored lead & copper summaries are present for 182 covered systems; 124 systems have violation or action-level context in this state summary.

What source-water types are represented across covered Wisconsin systems?

Stored identity records group covered Wisconsin systems by source-water type: Surface water: 45, Groundwater: 150.

Where can I find official drinking-water records for Wisconsin?

The Official records drawer lists Public drinking-water profile, Contaminant monitoring records links where currently available for Wisconsin.

Is this a real-time statewide tap-water condition rating?

No. This is not a real-time tap-water condition determination. Munimetric summarizes stored public-record context for research and navigation, and this layer does not change MISI.

States / Wisconsin

Wisconsin

Name: Wisconsin Drinking Water Infrastructure Stress Data
Creator: Munimetric
License: https://munimetric.com/terms

Explore Wisconsin drinking-water system scores, stress signals, infrastructure risk, and statewide market context across 195 scored service markets serving approximately 3.8 million people. This state profile highlights what is happening and why it matters using water-system, fiscal, capital, and signal context.

Wisconsin has an average MISI infrastructure stress score of 24.1/100 in the Watch band as of 2026-08-24. Public records summarize recent drinking-water violations, PFAS monitoring records, lead and copper context, and source-water mix across 195 covered systems. Updated May 2026.

National context

States sized by scored-market count. Color reflects average stress band.

195Markets scored

24.1Headline composite

~3.8MPop. served

910Active signals

Band distribution (MISI)

State headline composite

Component of current headline composite

Infrastructure Stress20.3 / 100

Physical, compliance, and capital-execution pressure reflected in the blended headline composite.

Socioeconomic Stress3.7 / 100

Affordability, demand-base, and parent-government fiscal pressure reflected in the blended headline composite.

Observability Stress0.1 / 100

Staleness, disclosure freshness, and reporting-visibility effects reflected in the blended headline composite.

24.1 headline compositeWisconsin state composite195 markets~3.8M people served

Milwaukee Waterworks49.2fragile Oak Creek Waterworks47.2fragile Milwaukee County Grounds46.4fragile Whitefish Bay Waterworks44.1fragile North Shore Water Commission43.4fragile Cudahy Waterworks40.9fragile Wauwatosa Waterworks40.9fragile Rice Lake Waterworks40.3fragile South Milwaukee Waterworks39.9watch Madison Water Utility39.1watch New Richmond Waterworks38.6watch Mt Horeb Waterworks38.0watch Verona Waterworks38.0watch North Fond Du Lac Waterworks38.0watch West Bend Waterworks37.6watch Kimberly Waterworks37.3watch Oconomowoc Waterworks37.3watch Black River Falls Waterworks36.7watch Racine Waterworks36.5watch Greendale Waterworks36.0watch Oregon Waterworks35.7watch Brookfield Water Utility35.3watch Germantown Water Utility34.6watch Jackson Waterworks34.6watch Jefferson Waterworks34.5watch Combined Locks Waterworks34.2watch Muskego Water Utility34.2watch Shorewood Waterworks34.0watch West Allis Waterworks33.8watch Hudson Waterworks33.5watch Beloit City of33.4watch Fond Du Lac Waterworks33.3watch Little Chute Waterworks33.3watch Waterford Waterworks33.2watch Ashland Water Utility33.1watch Franklin Water Utility32.9watch Fox Point Waterworks32.9watch Oshkosh Waterworks32.8watch Marinette Waterworks32.7watch Waukesha Water Utility32.5watch Fort Atkinson Waterworks32.5watch Slinger Water Utility31.7watch Glendale Waterworks31.7watch Appleton Waterworks31.5watch Cedarburg L & W Commission31.3watch Darboy Sanitary Dist 131.3watch Edgerton Waterworks31.2watch Menomonee Falls Ww - Surface Water31.1watch Waupaca Waterworks29.4watch Pewaukee City Water and Sewer Utility29.2watch Sussex Village Hall & Water Utility29.2watch Pewaukee Village Waterworks29.2watch Weston Municipal Utilities29.2watch Lake Mills Waterworks29.2watch Sheboygan Water Utilities29.0watch Mosinee Waterworks29.0watch Menasha Elec & Water Util28.7watch Stanley Waterworks28.7watch Manitowoc Waterworks28.5watch Green Bay Waterworks28.4watch Menasha Tn Utility Dist East28.2watch Kronenwetter Water & Sewer Utility28.2watch Ledgeview Tn Sanitary Dist 228.1watch La Crosse Waterworks28.1watch Peshtigo Waterworks28.0watch Mayville Waterworks27.5watch Sheboygan Falls Utilities27.4watch Clintonville Utilities27.4watch Eau Claire Waterworks27.4watch Kaukauna Utilities27.4watch Plymouth Utilities27.3watch Holmen Waterworks27.3watch Watertown Waterworks27.2watch Tomah Waterworks27.2watch Merrill Waterworks27.2watch Marshfield Utilities27.2watch Stoughton Waterworks27.2watch Rhinelander Water & Wastewater27.2watch Hartland Waterworks27.0watch Oneida #1 or Site #126.9watch Neenah Waterworks26.9watch Howard Waterworks26.8watch Mcfarland Waterworks26.7watch Tomahawk Waterworks26.6watch Union Grove Waterworks26.2watch Pleasant Prairie Water Utility26.1watch Lake Hallie Waterworks Village of26.0watch Town of Brookfield San Dist 425.8watch Berlin Waterworks25.6watch Bloomer Waterworks25.4watch Portage Waterworks25.4watch Columbus Water & Light Department25.3watch Ripon Waterworks25.3watch Omro Waterworks25.3watch Elkhorn Waterworks25.3watch Port Washington Waterworks25.2watch West Salem Waterworks24.8watch Oconto Waterworks24.5watch Wausau Waterworks24.2watch Cottage Grove Waterworks24.1watch Deforest Waterworks24.1watch Middleton Waterworks24.1watch Cross Plains Waterworks24.0watch Waunakee Waterworks24.0watch Evansville Waterworks24.0watch Chippewa Falls Waterworks23.8watch Bellevue Waterworks23.7watch Chilton Waterworks23.6watch Antigo Waterworks23.5watch Waterloo Waterworks23.3watch Reedsburg Waterworks23.1watch Baraboo Waterworks23.1watch Wis Rapids Water Works & Lighting Comm22.7watch Janesville Water Utility22.6watch Ashwaubenon Waterworks22.4watch Menasha Tn Utility Dist West22.3watch Altoona Waterworks22.3watch Brown Deer Waterworks22.1watch North Hudson Waterworks21.9watch Lake Geneva Utility Commission21.5watch Superior Water Light & Power Company21.5watch Onalaska Waterworks21.4watch Kiel Waterworks21.3watch Whitewater Waterworks21.2watch Prairie Du Sac Waterworks21.1watch Fitchburg Utility Dist 121.1watch Grafton Waterworks20.9watch Sun Prairie Utilities20.9watch Barron Light & Water Dept20.5watch Allouez Waterworks20.1watch Prairie Du Chien Waterworks20.1watch Waverly Sanitary Dist19.8stable Waupun Correctional Inst19.5stable Sauk City Waterworks19.5stable Two Rivers Waterworks19.5stable Mauston Waterworks19.5stable Viroqua Waterworks19.5stable Saukville Waterworks19.4stable Milton Waterworks19.4stable Greenville Sanitary Dist19.4stable Seymour Waterworks19.4stable Rib Mountain Sanitary Dist19.2stable Monona Waterworks19.2stable Baldwin Waterworks18.7stable Sturgeon Bay Waterworks17.8stable Hartford Waterworks17.7stable Kewaskum Waterworks17.7stable Shawano Waterworks17.5stable Fort Mc Coy North Post17.4stable Burlington Waterworks17.3stable Grand Chute Tn San Dist 117.3stable Suamico Waterworks17.2stable Lac Du Flambeau17.1stable Ladysmith Waterworks16.9stable Kenosha Waterworks16.9stable Marshall Waterworks16.8stable Plover Waterworks16.6stable Caledonia Water Utility - Village of16.3stable River Falls Waterworks15.9stable Medford Waterworks15.6stable Cabelas - Richfield15.4stable Sparta Waterworks15.4stable Boscobel Waterworks15.2stable Wi Dot Rest Area 12 Dekorra West Bound15.0stable Wi Dot Rest Area 11 Dekorra East Bound15.0stable Prescott Waterworks14.9stable Horicon Waterworks14.5stable Delavan Waterworks14.4stable Shawano Lk San Dist 113.6stable Sheboygan Tn Waterworks13.6stable New London Waterworks13.6stable East Troy Waterworks13.3stable Richland Center Waterworks12.7stable Lancaster Waterworks11.5stable Wi Dot Rest Area 22 Turtle11.4stable Keshena11.2stable Beaver Dam Water Utility11.2stable Stevens Point Waterworks9.5stable Platteville Waterworks9.4stable South-Central Water System9.3stable Mukwonago Waterworks8.0stable New Berlin Water Utility8.0stable Monroe Waterworks7.6stable Mequon Water Utility7.6stable Menomonie Waterworks7.6stable Waupun Utilities7.4stable Bloomfield, Village of7.2stable Yorkville Utility Dist 15.4stable Ho Chunk Casino4.0stable Pulaski Waterworks4.0stable De Pere Water Department4.0stable Algoma Waterworks4.0stable Wi Dot Rest Area 10 Kildare4.0stable Wi Dot Rest Area 9 Lemonweir4.0stable Dodgeville Waterworks0.0stable Milwaukee Waterworks49.2fragile Oak Creek Waterworks47.2fragile Milwaukee County Grounds46.4fragile Whitefish Bay Waterworks44.1fragile North Shore Water Commission43.4fragile Cudahy Waterworks40.9fragile Wauwatosa Waterworks40.9fragile Rice Lake Waterworks40.3fragile South Milwaukee Waterworks39.9watch Madison Water Utility39.1watch New Richmond Waterworks38.6watch Mt Horeb Waterworks38.0watch Verona Waterworks38.0watch North Fond Du Lac Waterworks38.0watch West Bend Waterworks37.6watch Kimberly Waterworks37.3watch Oconomowoc Waterworks37.3watch Black River Falls Waterworks36.7watch Racine Waterworks36.5watch Greendale Waterworks36.0watch Oregon Waterworks35.7watch Brookfield Water Utility35.3watch Germantown Water Utility34.6watch Jackson Waterworks34.6watch Jefferson Waterworks34.5watch Combined Locks Waterworks34.2watch Muskego Water Utility34.2watch Shorewood Waterworks34.0watch West Allis Waterworks33.8watch Hudson Waterworks33.5watch Beloit City of33.4watch Fond Du Lac Waterworks33.3watch Little Chute Waterworks33.3watch Waterford Waterworks33.2watch Ashland Water Utility33.1watch Franklin Water Utility32.9watch Fox Point Waterworks32.9watch Oshkosh Waterworks32.8watch Marinette Waterworks32.7watch Waukesha Water Utility32.5watch Fort Atkinson Waterworks32.5watch Slinger Water Utility31.7watch Glendale Waterworks31.7watch Appleton Waterworks31.5watch Cedarburg L & W Commission31.3watch Darboy Sanitary Dist 131.3watch Edgerton Waterworks31.2watch Menomonee Falls Ww - Surface Water31.1watch Waupaca Waterworks29.4watch Pewaukee City Water and Sewer Utility29.2watch Sussex Village Hall & Water Utility29.2watch Pewaukee Village Waterworks29.2watch Weston Municipal Utilities29.2watch Lake Mills Waterworks29.2watch Sheboygan Water Utilities29.0watch Mosinee Waterworks29.0watch Menasha Elec & Water Util28.7watch Stanley Waterworks28.7watch Manitowoc Waterworks28.5watch Green Bay Waterworks28.4watch Menasha Tn Utility Dist East28.2watch Kronenwetter Water & Sewer Utility28.2watch Ledgeview Tn Sanitary Dist 228.1watch La Crosse Waterworks28.1watch Peshtigo Waterworks28.0watch Mayville Waterworks27.5watch Sheboygan Falls Utilities27.4watch Clintonville Utilities27.4watch Eau Claire Waterworks27.4watch Kaukauna Utilities27.4watch Plymouth Utilities27.3watch Holmen Waterworks27.3watch Watertown Waterworks27.2watch Tomah Waterworks27.2watch Merrill Waterworks27.2watch Marshfield Utilities27.2watch Stoughton Waterworks27.2watch Rhinelander Water & Wastewater27.2watch Hartland Waterworks27.0watch Oneida #1 or Site #126.9watch Neenah Waterworks26.9watch Howard Waterworks26.8watch Mcfarland Waterworks26.7watch Tomahawk Waterworks26.6watch Union Grove Waterworks26.2watch Pleasant Prairie Water Utility26.1watch Lake Hallie Waterworks Village of26.0watch Town of Brookfield San Dist 425.8watch Berlin Waterworks25.6watch Bloomer Waterworks25.4watch Portage Waterworks25.4watch Columbus Water & Light Department25.3watch Ripon Waterworks25.3watch Omro Waterworks25.3watch Elkhorn Waterworks25.3watch Port Washington Waterworks25.2watch West Salem Waterworks24.8watch Oconto Waterworks24.5watch Wausau Waterworks24.2watch Cottage Grove Waterworks24.1watch Deforest Waterworks24.1watch Middleton Waterworks24.1watch Cross Plains Waterworks24.0watch Waunakee Waterworks24.0watch Evansville Waterworks24.0watch Chippewa Falls Waterworks23.8watch Bellevue Waterworks23.7watch Chilton Waterworks23.6watch Antigo Waterworks23.5watch Waterloo Waterworks23.3watch Reedsburg Waterworks23.1watch Baraboo Waterworks23.1watch Wis Rapids Water Works & Lighting Comm22.7watch Janesville Water Utility22.6watch Ashwaubenon Waterworks22.4watch Menasha Tn Utility Dist West22.3watch Altoona Waterworks22.3watch Brown Deer Waterworks22.1watch North Hudson Waterworks21.9watch Lake Geneva Utility Commission21.5watch Superior Water Light & Power Company21.5watch Onalaska Waterworks21.4watch Kiel Waterworks21.3watch Whitewater Waterworks21.2watch Prairie Du Sac Waterworks21.1watch Fitchburg Utility Dist 121.1watch Grafton Waterworks20.9watch Sun Prairie Utilities20.9watch Barron Light & Water Dept20.5watch Allouez Waterworks20.1watch Prairie Du Chien Waterworks20.1watch Waverly Sanitary Dist19.8stable Waupun Correctional Inst19.5stable Sauk City Waterworks19.5stable Two Rivers Waterworks19.5stable Mauston Waterworks19.5stable Viroqua Waterworks19.5stable Saukville Waterworks19.4stable Milton Waterworks19.4stable Greenville Sanitary Dist19.4stable Seymour Waterworks19.4stable Rib Mountain Sanitary Dist19.2stable Monona Waterworks19.2stable Baldwin Waterworks18.7stable Sturgeon Bay Waterworks17.8stable Hartford Waterworks17.7stable Kewaskum Waterworks17.7stable Shawano Waterworks17.5stable Fort Mc Coy North Post17.4stable Burlington Waterworks17.3stable Grand Chute Tn San Dist 117.3stable Suamico Waterworks17.2stable Lac Du Flambeau17.1stable Ladysmith Waterworks16.9stable Kenosha Waterworks16.9stable Marshall Waterworks16.8stable Plover Waterworks16.6stable Caledonia Water Utility - Village of16.3stable River Falls Waterworks15.9stable Medford Waterworks15.6stable Cabelas - Richfield15.4stable Sparta Waterworks15.4stable Boscobel Waterworks15.2stable Wi Dot Rest Area 12 Dekorra West Bound15.0stable Wi Dot Rest Area 11 Dekorra East Bound15.0stable Prescott Waterworks14.9stable Horicon Waterworks14.5stable Delavan Waterworks14.4stable Shawano Lk San Dist 113.6stable Sheboygan Tn Waterworks13.6stable New London Waterworks13.6stable East Troy Waterworks13.3stable Richland Center Waterworks12.7stable Lancaster Waterworks11.5stable Wi Dot Rest Area 22 Turtle11.4stable Keshena11.2stable Beaver Dam Water Utility11.2stable Stevens Point Waterworks9.5stable Platteville Waterworks9.4stable South-Central Water System9.3stable Mukwonago Waterworks8.0stable New Berlin Water Utility8.0stable Monroe Waterworks7.6stable Mequon Water Utility7.6stable Menomonie Waterworks7.6stable Waupun Utilities7.4stable Bloomfield, Village of7.2stable Yorkville Utility Dist 15.4stable Ho Chunk Casino4.0stable Pulaski Waterworks4.0stable De Pere Water Department4.0stable Algoma Waterworks4.0stable Wi Dot Rest Area 10 Kildare4.0stable Wi Dot Rest Area 9 Lemonweir4.0stable Dodgeville Waterworks0.0stable

State interpretation guide

How to read Wisconsin headline composite

Plain-language summary

Wisconsin currently shows an average MISI headline composite of 24.1 versus a national average of 24.4. In v0.1.2, the headline composite remains a blended structural stress measure rather than a pure physical-condition index. A frozen national reference and a 50 percent single-factor cap reduce the dominance of near-universal and very rare factors, while the component bars continue to separate infrastructure, socioeconomic, and observability readings.

Why this page stands out

195 scored systems are included in this state view, with explicit confidence and source-backed context.
State posture is benchmarked against national averages, not evaluated in isolation.
Top system links below connect state-level findings directly to profile-level diagnostics.

What to do next

Review the executive context to understand the state-level pressure pattern.
Open top system profiles to inspect what is actually driving stress at market level.
Use saved monitoring after research access is enabled to follow high-stress systems over time.

Priority Wisconsin paths

Public record layer

Statewide Water Quality Context

Stored public-record context for recent drinking-water violations, contaminant monitoring, and source-water mix across covered systems. This is not a tap-water safety determination and does not change the MISI score.

Systems with recent violations

90 of 195Systems with recent public violation rows.

Source-water mix195 systems

Surface water45
Groundwater150
Purchased water0
Mixed source0
Not stored0

Latest identity snapshot: Jun 30, 2026

Coverage

Violation, enforcement, and compliance-burden counts use the recent 3 years window for dated stored records.
Drinking-water identity snapshots are stored for 187 of 195 included scored systems.
PFAS monitoring summary records are stored for 181 of 195 included systems; missing records are not treated as non-detections.
Lead and copper summary records are stored for 182 of 195 included systems; missing records are not treated as absence of lead/copper context.

Water quality questionsDefinitions and public-record context

How many covered systems in Wisconsin have recent recorded drinking-water violations?: Stored public records show 90 covered systems with recent drinking-water violations, with 518 recorded violations across 195 covered systems in the recent 3 years window.
How does Munimetric summarize PFAS public-record context in Wisconsin?: Stored contaminant-monitoring summaries are present for 181 covered systems; 70 systems have PFAS detection context in this state summary.
How does Munimetric summarize lead & copper context in Wisconsin?: Stored lead & copper summaries are present for 182 covered systems; 124 systems have violation or action-level context in this state summary.
What source-water types are represented across covered Wisconsin systems?: Stored identity records group covered Wisconsin systems by source-water type: Surface water: 45, Groundwater: 150.
Where can I find official drinking-water records for Wisconsin?: The Official records drawer lists Public drinking-water profile, Contaminant monitoring records links where currently available for Wisconsin.
Is this a real-time statewide tap-water condition rating?: No. This is not a real-time tap-water condition determination. Munimetric summarizes stored public-record context for research and navigation, and this layer does not change MISI.

Official records

Public drinking-water profileEPA ECHO: Federal drinking-water dashboard and public-record search entry point.
Contaminant monitoring recordsEPA UCMR: Federal contaminant-monitoring program reference and public data entry point.

Methodology/source notes

Methodology/source notesDisplayed from stored public drinking-water records and official program references. This layer does not change MISI.
Enforcement historyEPA ECHO / SDWIS: Violation and enforcement counts are aggregated from stored public compliance records across covered systems.
Contaminant monitoring recordsEPA UCMR: PFAS context uses stored contaminant-monitoring summaries where available; missing records are not treated as non-detections.
State drinking-water programOfficial link not currently stored for this state program mapping.

Top recent compliance-burden systemsRecent 3 years

System	Population	Source water	Recent violations	Recent enforcement	Public-record flags
Pewaukee Village WaterworksWI2680229	8,166	Groundwater	45	128	recent violations recorded, recent enforcement history, lead/copper context
Pewaukee City Water And Sewer UtilityWI2680214	8,671	Groundwater	31	131	recent violations recorded, recent enforcement history, PFAS detections in stored records
Bloomfield, Village OfWI2651469	4,071	Groundwater	22	60	recent violations recorded, recent enforcement history, recent monitoring/reporting failures
Ashland Water UtilityWI8020373	8,000	Surface water	20	74	recent violations recorded, recent enforcement history, lead/copper context
Waukesha Water UtilityWI2680238	70,718	Surface water	14	1,238	recent violations recorded, recent enforcement history
Antigo WaterworksWI7340086	7,780	Groundwater	14	33	recent violations recorded, recent enforcement history, lead/copper context
Jefferson WaterworksWI1280104	7,926	Groundwater	10	50	recent violations recorded, recent enforcement history, lead/copper context
Lake Hallie Waterworks Village OfWI6090849	6,701	Groundwater	10	23	recent violations recorded, recent enforcement history, recent monitoring/reporting failures, lead/copper context

This is not a real-time tap-water condition determination. For current advisories or health guidance, consult the utility or state drinking-water program.

Executive context

What This Page Shows

195 of the community drinking-water systems in Wisconsin are currently scored. Analytics below are calculated from this covered subset only. Covered systems serve approximately 3.8M people.

What the Data Suggests

Wisconsin has 195 scored service markets in the Munimetric coverage set, covering roughly 3.8 million residents in total. At the latest reading, the state-level average lands at 24.1 out of 100, indicating early but meaningful signs of structural stress in aggregate. A relatively small share — roughly 4% — currently sit in elevated-stress bands.

Across state markets, Operational Stress stands out as the dominant contributor to headline stress (12.0 points average), with Capex Pressure a distant second at 8.3. That pattern suggests a particular kind of pressure — concentrated rather than broadly distributed.

910 active signals are recorded across state markets. The most prevalent is Climate Hazard Exposure, affecting 185 markets.

State-level average stress has been relatively steady between recent observation periods, suggesting the current picture reflects persistent conditions rather than a sudden shift.

This summary is based on structured, source-backed public data and is intended for research and monitoring only. It is not investment advice, a credit opinion, or municipal advisory guidance.

Recent Movement

Latest average MISI is 24.1 as of Aug 24, 2026. Movement since Aug 23, 2026 is flat.

Compact summary from 100 stored state observations.

State Family Contribution Summary

Operational Stress12.0 / 20.0

Capex Pressure8.3 / 20.0

Revenue Fragility3.1 / 20.0

Governance Risk0.6 / 20.0

Rate Constraint0.0 / 20.0

Signals

Signal Frequency

Signal	Severity	Markets affected	% of scored
Climate Hazard Exposure	high	185	95%
Current Drought Severity	high	155	79%
Compliance Escalation	high	134	69%
Lead & Copper Rule Risk	high	124	64%
High-AGI Out-Migration	high	109	56%
PFAS Contamination Risk	high	70	36%
Infrastructure Capital Gap	high	39	20%
Parent-Government Fiscal Stress	medium	37	19%
Housing Market Weakness	medium	26	13%
Population Served Decline	medium	16	8%
Monitoring / Reporting Failures	medium	10	5%
Utility Data Staleness	high	3	2%
Income Erosion	low	2	1%

Markets

Top Markets

#	Market	Score	Band	Population	Signals
1	Milwaukee Waterworks	49.2	Fragile	626K	8
2	Oak Creek Waterworks	47.2	Fragile	32K	8
3	Milwaukee County Grounds	46.4	Fragile	10K	8
4	Whitefish Bay Waterworks	44.1	Fragile	14K	7
5	North Shore Water Commission	43.4	Fragile	36K	8
6	Cudahy Waterworks	40.9	Fragile	19K	7
7	Wauwatosa Waterworks	40.9	Fragile	49K	7
8	Rice Lake Waterworks	40.3	Fragile	9K	7
9	South Milwaukee Waterworks	39.9	Watch	21K	7
10	Madison Water Utility	39.1	Watch	272K	7
11	New Richmond Waterworks	38.6	Watch	11K	6
12	Mt Horeb Waterworks	38.0	Watch	8K	6
13	Verona Waterworks	38.0	Watch	14K	7
14	North Fond Du Lac Waterworks	38.0	Watch	5K	7
15	West Bend Waterworks	37.6	Watch	32K	6
16	Kimberly Waterworks	37.3	Watch	8K	7
17	Oconomowoc Waterworks	37.3	Watch	16K	6
18	Black River Falls Waterworks	36.7	Watch	4K	8
19	Racine Waterworks	36.5	Watch	105K	4
20	Greendale Waterworks	36.0	Watch	14K	7

Comparison

State Comparison

National average: 24.4

Rank	State	Avg Score	Band	Markets	Delta vs State
25	Rhode Island	24.3	Watch	29	+0.2
26	South Dakota	24.3	Watch	46	+0.2
27	Wisconsin	24.1	Watch	195	+0.0
28	Arkansas	23.7	Watch	158	-0.4
29	North Dakota	23.5	Watch	29	-0.6

Analytical posture

State Stress Analytics

Score Distribution

Distribution of scored market scores with the state average overlay.

195 markets plotted.

Stress vs Population

Each point is a scored market; tooltip reveals market-level context.

195 markets plotted.

Population View

People served by community water systems in Wisconsin, colored by stress band.

~3.8M people served by 195 systems in Wisconsin

Stable

Watch

Fragile

High Stress

Critical

195 scored systems · colored by stress band

Peer Constellation

Select a market to see its nearest peers by score similarity.

Center market:

24 nearest peers by score distance.

Score Trend

Latest

24.1

Trend

+15.1

Observations

100

Extended layers

Advanced State Context

Priority views, detailed registers, and methodology supporting the analytical core above.

Markets & signals

Priority Views

#	Market	Score	Band	Population	Signals
1	Milwaukee Waterworks	49.2	Fragile	626K	8
2	Oak Creek Waterworks	47.2	Fragile	32K	8
3	Milwaukee County Grounds	46.4	Fragile	10K	8
4	Whitefish Bay Waterworks	44.1	Fragile	14K	7
5	North Shore Water Commission	43.4	Fragile	36K	8
6	Cudahy Waterworks	40.9	Fragile	19K	7
7	Wauwatosa Waterworks	40.9	Fragile	49K	7
8	Rice Lake Waterworks	40.3	Fragile	9K	7
9	South Milwaukee Waterworks	39.9	Watch	21K	7
10	Madison Water Utility	39.1	Watch	272K	7
11	New Richmond Waterworks	38.6	Watch	11K	6
12	Mt Horeb Waterworks	38.0	Watch	8K	6
13	Verona Waterworks	38.0	Watch	14K	7
14	North Fond Du Lac Waterworks	38.0	Watch	5K	7
15	West Bend Waterworks	37.6	Watch	32K	6
16	Kimberly Waterworks	37.3	Watch	8K	7
17	Oconomowoc Waterworks	37.3	Watch	16K	6
18	Black River Falls Waterworks	36.7	Watch	4K	8
19	Racine Waterworks	36.5	Watch	105K	4
20	Greendale Waterworks	36.0	Watch	14K	7

Detailed records

Registers

#	Market	Score	Band	Population	Signals
1	Milwaukee Waterworks	49.2	Fragile	626K	8
2	Oak Creek Waterworks	47.2	Fragile	32K	8
3	Milwaukee County Grounds	46.4	Fragile	10K	8
4	Whitefish Bay Waterworks	44.1	Fragile	14K	7
5	North Shore Water Commission	43.4	Fragile	36K	8
6	Cudahy Waterworks	40.9	Fragile	19K	7
7	Wauwatosa Waterworks	40.9	Fragile	49K	7
8	Rice Lake Waterworks	40.3	Fragile	9K	7
9	South Milwaukee Waterworks	39.9	Watch	21K	7
10	Madison Water Utility	39.1	Watch	272K	7
11	New Richmond Waterworks	38.6	Watch	11K	6
12	Mt Horeb Waterworks	38.0	Watch	8K	6
13	Verona Waterworks	38.0	Watch	14K	7
14	North Fond Du Lac Waterworks	38.0	Watch	5K	7
15	West Bend Waterworks	37.6	Watch	32K	6
16	Kimberly Waterworks	37.3	Watch	8K	7
17	Oconomowoc Waterworks	37.3	Watch	16K	6
18	Black River Falls Waterworks	36.7	Watch	4K	8
19	Racine Waterworks	36.5	Watch	105K	4
20	Greendale Waterworks	36.0	Watch	14K	7

Munimetric tracks infrastructure stress across 195 community drinking-water systems in Wisconsin, covering compliance conditions, capital needs, revenue and rate pressure, and governance risk. Use this page to research which systems face the highest structural stress and how Wisconsin compares nationally.

Which water systems in Wisconsin face the most infrastructure stress?: The highest-stress systems in Wisconsin are ranked by MISI score above. Stress reflects operational burden, capital gaps, revenue fragility, rate affordability constraints, and governance risk—not a single compliance event. In v0.1.2, the headline composite remains a blended structural stress measure rather than a pure physical-condition index. A frozen national reference and a 50 percent single-factor cap reduce the dominance of near-universal and very rare factors, while the component bars continue to separate infrastructure, socioeconomic, and observability readings.
How does Wisconsin compare to other states for drinking water infrastructure risk?: Wisconsin is compared against all 50 states and territories using average MISI score, market count, and band distribution. The state comparison table above shows where Wisconsin ranks nationally and how its average score compares.
Are there lead pipe or corrosion-related concerns in Wisconsin water systems?: Where lead and copper rule compliance data is available from EPA SDWA records, Munimetric factors it into the Operational Stress family. Specific lead service line inventories vary by system. Individual system profiles contain the most detailed compliance context available.
What compliance signals are active in Wisconsin?: Munimetric tracks signals such as compliance escalation, monitoring and reporting failures, data staleness, and financial stress indicators across Wisconsin systems. The signal frequency table above summarizes which signals are most prevalent statewide.
Does Munimetric track boil water advisories in Wisconsin?: Munimetric does not track real-time boil water advisories. For current advisories, contact your local water utility or state drinking water program. Munimetric monitors structural conditions—compliance posture, infrastructure stress, and governance risk—that provide broader context around system reliability.

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Water Infrastructure in Wisconsin

Munimetric tracks infrastructure stress across 195 community drinking-water systems in Wisconsin. Each system receives a Munimetric Infrastructure Stress Index (MISI) score from 0 to 100, calculated across five risk families: Operational Stress, Capex Pressure, Revenue Fragility, Rate Constraint, and Governance Risk. Higher scores indicate more structural stress. Scores are source-backed and deterministic, drawing from EPA SDWA compliance records, American Community Survey demographic and economic data, FEMA National Risk Index hazard profiles, and state financial disclosures.

State-level monitoring shows which systems face the highest structural stress, how Wisconsin compares against other states nationally, and which monitoring signals are most active across the state. Each individual system profile includes compliance history, score family drivers, peer rankings within population-based cohorts where safeguards pass, and public source context. Full provenance cards and source workbench views remain workflow-gated. Munimetric covers community water systems across all 50 states and territories. This is structural risk research—not a water quality rating, advisory feed, or credit rating. Updated May 2026.

The statewide public-record layer adds drinking-water violation categories, PFAS monitoring summaries where stored, lead and copper context, source-water mix, and official record links across covered systems. These records help explain water-system context alongside infrastructure stress without turning Munimetric into a tap-water safety determination.

What is the Munimetric score for Wisconsin?: Munimetric assigns a state-level average MISI score based on the individual scores of all covered community water systems in Wisconsin. The state average, band distribution, and market-level rankings are shown on this page. Higher MISI values indicate greater structural stress.
Which water systems in Wisconsin face the most infrastructure stress?: The state page ranks the highest-stress systems in Wisconsin by MISI score. Stress reflects operational burden, capital gaps, revenue fragility, rate affordability constraints, and governance risk, not a single compliance event. The headline remains a blended structural stress composite rather than a pure physical-condition index. Workflow actions remain reserved for account access.
How does Wisconsin compare to other states for drinking water infrastructure risk?: Wisconsin is compared against all 50 states and territories using average MISI score, market count, and band distribution. Munimetric tracks nationwide coverage across 9,000+ scored service markets.
Are there lead pipe or corrosion-related concerns in Wisconsin water systems?: Where lead and copper rule compliance data is available from EPA SDWA records, Munimetric factors it into the Operational Stress family score. Specific lead service line inventories vary by system. Individual system profiles contain the most detailed compliance context available.
Does Munimetric include PFAS monitoring context for Wisconsin water systems?: Munimetric summarizes stored PFAS monitoring context where public contaminant-monitoring records are available. Missing PFAS summaries remain missing records, not non-detections, and this public-record layer does not change the MISI score by itself.
What compliance signals are active in Wisconsin?: Munimetric tracks signals such as compliance escalation, monitoring and reporting failures, population decline, income erosion, data staleness, and parent-government fiscal stress across Wisconsin water systems.
Does Munimetric track boil water advisories in Wisconsin?: Munimetric does not track real-time boil water advisories. For current advisories, contact your local water utility or state drinking water program. Munimetric monitors structural conditions that provide context around system reliability over time.