States / Iowa

Iowa

Statewide Munimetric profile for Iowa, covering drinking-water market scores, signal activity, infrastructure stress context, and population insights across 131 scored service markets serving approximately 2.4 million people. This state profile highlights what is happening and why it matters using water-system, fiscal, capital, and signal context.

Iowa has an average MISI infrastructure stress score of 23.1/100 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 131 covered systems. This state view connects city and system-level utility stress context to scored community drinking-water systems. Updated May 2026.

National context

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

131Markets scored
23.1Headline composite
~2.4MPop. served
550Active signals
Band distribution (MISI)

State headline composite

Component of current headline composite

Infrastructure Stress18.0 / 100

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

Socioeconomic Stress4.2 / 100

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

Observability Stress0.9 / 100

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

23.1 headline compositeIowa state composite131 markets~2.4M people served
Des Moines Water Works42.8fragileJohnston Municipal Water Supply42.8fragileUrbandale Water Utility42.6fragileOttumwa Water Works41.9fragileFairfield Water Supply40.6fragileFort Dodge Water Supply40.5fragileAmes Water Treatment Plant40.4fragileBondurant Muni Water Supply38.8watchUniversity Water System38.6watchAltoona Water Supply38.2watchSioux City Water Supply37.3watchAnkeny, City of37.1watchCentral Ia Water Assn (waverly)37.0watchPolk City Water Supply36.8watchCedar Rapids Water Department36.7watchBoone Water Works35.9watchRathbun Regional Water Assn (rathbun)35.5watchEagle Grove Water Supply35.0watchGrinnell Water Department34.8watchRock Valley Water Supply33.6watchGrimes Water Supply32.8watchWest Des Moines Water Works32.8watchMason City Water Department32.8watchNorth Liberty Water Supply32.6watchMarshalltown Water Works32.3watchDenison Water Supply31.5watchFt Madison Muni Water Works31.5watchCoralville Muni Water System31.3watchSergeant Bluff Water Supply30.6watchCarter Lake Water District30.5watchOskaloosa Municipal Water Dept29.9watchCarroll Municipal Water Supply29.6watchIowa City Water Department29.4watchGlenwood Municipal Utilities29.3watchRathbun Reg Water Assn (ft Madison)29.2watchClive Water Department29.1watchAtlantic Municipal Utilities29.1watchXenia Rwd (des Moines)29.1watchAsbury Municipal Water System29.1watchDyersville Municipal Water Co29.0watchAlgona Municipal Utilities28.4watchDubuque Water Works27.6watchStory City Water Dept27.4watchRegional Water27.4watchIsu27.0watchOsceola Rural Water System-North26.9watchCedar Falls Municipal Water Utilities26.6watchMount Pleasant Municipal Utilities26.5watchKeokuk Municipal Water Works26.3watchSpirit Lake Waterworks25.9watchAnamosa Municipal Water Supply25.9watchCreston Water Supply25.8watchXenia Rwd (boone)25.5watchSoutheast Polk Rwd25.4watchStorm Lake Water Treatment Plant25.2watchEstherville Water Treatment Plant25.1watchWaterloo Water Works24.9watchBurlington Municipal Waterworks24.5watchMahaska Rural Water System, Inc.24.2watchHumboldt Municipal Water Dept24.0watchLemars Water Department23.8watchWest Liberty Water Utility23.6watchHiawatha Water Dept23.4watchWaukee Water Supply23.3watchMarion Co. Rural Water District23.3watchNevada Water Supply23.3watchIowa-American Wtr Co-Clinton District23.1watchMuscatine Power & Water23.0watchCouncil Bluffs Water Works22.9watchMarion Municipal Water Dept22.9watchHampton Muni Water Works22.7watchClarinda Water Plant22.0watchForest City Water Supply22.0watchEmmetsburg Municipal Water Department21.9watchOrange City Municipal Water Department21.8watchSioux Center Municipal Water Department21.7watchCamanche Water Supply21.5watchVinton Municipal Water Dept21.4watchSirwa #2 (creston)21.4watchEldridge Water Supply21.3watchOsage Municipal Water Supply21.3watchSouthern Sioux County Rural Water21.2watchRathbun Reg Wtr Assn (burlington)21.1watchKnoxville Water Works20.0stablePella Water Works Department20.0stableSheldon Water Department20.0stableOsceola Water Works19.9stableCherokee Water Supply - Plant 119.5stableSpencer Municipal Water Utility19.5stableIndianola Water Supply19.4stableWest Central Rwa - Nish System19.4stableIowa-American Wtr Co-Davenport19.1stablePoweshiek Water Association18.9stableMount Vernon Water Supply17.4stableChariton Municipal Water Works16.9stableMaquoketa Municipal Water16.0stableNewton Water Supply16.0stableWapello Rural Water Assoc.16.0stableWarren Water District16.0stableNorwalk Water Supply16.0stableXenia Rwd (north)15.9stableCenterville Municipal Waterworks15.7stableAlbia Municipal Water Works15.7stableRed Oak Water Supply15.5stableClear Lake Water Department15.2stableDe Witt Water Supply15.2stableShenandoah Water Dept15.1stableCarlisle Water Supply14.9stableIowa Lakes Regional Water - Lakes Area14.9stableWaverly Water Department13.6stableAdel Municipal Water Works13.5stableEvansdale Water Works13.3stableHuxley Waterworks Dept13.1stableCharles City Water Supply12.5stableManchester Water Supply11.3stableIowa Falls Water Department9.5stableOelwein Municipal Water Works9.1stableWashington Water Department8.0stableWaukon Water Department8.0stableWebster City Water Supply8.0stableIowa Lakes Regional Water8.0stableNew Hampton Water Supply7.3stablePerry Municipal Water Works7.2stableDecorah Water Department6.0stableJefferson Water Department5.5stableIndependence Water Dept4.0stableCresco Waterworks4.0stableWinterset Municipal Waterworks4.0stableHarlan Municipal Utilities4.0stableMonticello Water Supply0.0stableWorth Co Interchange 214 Water Supply0.0stableDes Moines Water Works42.8fragileJohnston Municipal Water Supply42.8fragileUrbandale Water Utility42.6fragileOttumwa Water Works41.9fragileFairfield Water Supply40.6fragileFort Dodge Water Supply40.5fragileAmes Water Treatment Plant40.4fragileBondurant Muni Water Supply38.8watchUniversity Water System38.6watchAltoona Water Supply38.2watchSioux City Water Supply37.3watchAnkeny, City of37.1watchCentral Ia Water Assn (waverly)37.0watchPolk City Water Supply36.8watchCedar Rapids Water Department36.7watchBoone Water Works35.9watchRathbun Regional Water Assn (rathbun)35.5watchEagle Grove Water Supply35.0watchGrinnell Water Department34.8watchRock Valley Water Supply33.6watchGrimes Water Supply32.8watchWest Des Moines Water Works32.8watchMason City Water Department32.8watchNorth Liberty Water Supply32.6watchMarshalltown Water Works32.3watchDenison Water Supply31.5watchFt Madison Muni Water Works31.5watchCoralville Muni Water System31.3watchSergeant Bluff Water Supply30.6watchCarter Lake Water District30.5watchOskaloosa Municipal Water Dept29.9watchCarroll Municipal Water Supply29.6watchIowa City Water Department29.4watchGlenwood Municipal Utilities29.3watchRathbun Reg Water Assn (ft Madison)29.2watchClive Water Department29.1watchAtlantic Municipal Utilities29.1watchXenia Rwd (des Moines)29.1watchAsbury Municipal Water System29.1watchDyersville Municipal Water Co29.0watchAlgona Municipal Utilities28.4watchDubuque Water Works27.6watchStory City Water Dept27.4watchRegional Water27.4watchIsu27.0watchOsceola Rural Water System-North26.9watchCedar Falls Municipal Water Utilities26.6watchMount Pleasant Municipal Utilities26.5watchKeokuk Municipal Water Works26.3watchSpirit Lake Waterworks25.9watchAnamosa Municipal Water Supply25.9watchCreston Water Supply25.8watchXenia Rwd (boone)25.5watchSoutheast Polk Rwd25.4watchStorm Lake Water Treatment Plant25.2watchEstherville Water Treatment Plant25.1watchWaterloo Water Works24.9watchBurlington Municipal Waterworks24.5watchMahaska Rural Water System, Inc.24.2watchHumboldt Municipal Water Dept24.0watchLemars Water Department23.8watchWest Liberty Water Utility23.6watchHiawatha Water Dept23.4watchWaukee Water Supply23.3watchMarion Co. Rural Water District23.3watchNevada Water Supply23.3watchIowa-American Wtr Co-Clinton District23.1watchMuscatine Power & Water23.0watchCouncil Bluffs Water Works22.9watchMarion Municipal Water Dept22.9watchHampton Muni Water Works22.7watchClarinda Water Plant22.0watchForest City Water Supply22.0watchEmmetsburg Municipal Water Department21.9watchOrange City Municipal Water Department21.8watchSioux Center Municipal Water Department21.7watchCamanche Water Supply21.5watchVinton Municipal Water Dept21.4watchSirwa #2 (creston)21.4watchEldridge Water Supply21.3watchOsage Municipal Water Supply21.3watchSouthern Sioux County Rural Water21.2watchRathbun Reg Wtr Assn (burlington)21.1watchKnoxville Water Works20.0stablePella Water Works Department20.0stableSheldon Water Department20.0stableOsceola Water Works19.9stableCherokee Water Supply - Plant 119.5stableSpencer Municipal Water Utility19.5stableIndianola Water Supply19.4stableWest Central Rwa - Nish System19.4stableIowa-American Wtr Co-Davenport19.1stablePoweshiek Water Association18.9stableMount Vernon Water Supply17.4stableChariton Municipal Water Works16.9stableMaquoketa Municipal Water16.0stableNewton Water Supply16.0stableWapello Rural Water Assoc.16.0stableWarren Water District16.0stableNorwalk Water Supply16.0stableXenia Rwd (north)15.9stableCenterville Municipal Waterworks15.7stableAlbia Municipal Water Works15.7stableRed Oak Water Supply15.5stableClear Lake Water Department15.2stableDe Witt Water Supply15.2stableShenandoah Water Dept15.1stableCarlisle Water Supply14.9stableIowa Lakes Regional Water - Lakes Area14.9stableWaverly Water Department13.6stableAdel Municipal Water Works13.5stableEvansdale Water Works13.3stableHuxley Waterworks Dept13.1stableCharles City Water Supply12.5stableManchester Water Supply11.3stableIowa Falls Water Department9.5stableOelwein Municipal Water Works9.1stableWashington Water Department8.0stableWaukon Water Department8.0stableWebster City Water Supply8.0stableIowa Lakes Regional Water8.0stableNew Hampton Water Supply7.3stablePerry Municipal Water Works7.2stableDecorah Water Department6.0stableJefferson Water Department5.5stableIndependence Water Dept4.0stableCresco Waterworks4.0stableWinterset Municipal Waterworks4.0stableHarlan Municipal Utilities4.0stableMonticello Water Supply0.0stableWorth Co Interchange 214 Water Supply0.0stable

Track

Iowa Infrastructure Track

Portfolio posture across schedule and budget risk. · 27 active projects.

State scope
Total capital$59M
On-time rate
100%
Budget risk
65%
Delayed0%
Sch. variance0d

Funding mix

27 projectsTracked capital: $59,317,856

  • Funding mix unavailable

State interpretation guide

How to read Iowa headline composite

Plain-language summary

Iowa currently shows an average MISI headline composite of 23.1 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

What to do next

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
19 of 131Systems with recent public violation rows.
Source-water mix131 systems
  • Surface water42
  • Groundwater89
  • 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 130 of 131 included scored systems.
  • PFAS monitoring summary records are stored for 130 of 131 included systems; missing records are not treated as non-detections.
  • Lead and copper summary records are stored for 130 of 131 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 Iowa have recent recorded drinking-water violations?
Stored public records show 19 covered systems with recent drinking-water violations, with 81 recorded violations across 131 covered systems in the recent 3 years window.
How does Munimetric summarize PFAS public-record context in Iowa?
Stored contaminant-monitoring summaries are present for 130 covered systems; 108 systems have PFAS detection context in this state summary.
How does Munimetric summarize lead & copper context in Iowa?
Stored lead & copper summaries are present for 130 covered systems; 61 systems have violation or action-level context in this state summary.
What source-water types are represented across covered Iowa systems?
Stored identity records group covered Iowa systems by source-water type: Surface water: 42, Groundwater: 89.
Where can I find official drinking-water records for Iowa?
The Official records drawer lists Public drinking-water profile, Contaminant monitoring records links where currently available for Iowa.
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
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
SystemPopulationSource waterRecent violationsRecent enforcementPublic-record flags
Grinnell Water DepartmentIA79300089,564Groundwater32122recent violations recorded, recent enforcement history, recent monitoring/reporting failures, PFAS detections in stored records
Osceola Water WorksIA20380385,503Surface water616recent violations recorded, recent enforcement history, recent monitoring/reporting failures, PFAS detections in stored records, lead/copper context
Red Oak Water SupplyIA69500755,596Groundwater446recent violations recorded, recent enforcement history, recent monitoring/reporting failures, PFAS detections in stored records
Sioux City Water SupplyIA977805485,791Surface water416recent violations recorded, recent enforcement history, recent monitoring/reporting failures, PFAS detections in stored records, lead/copper context
Rock Valley Water SupplyIA84820964,059Groundwater416recent violations recorded, recent enforcement history, recent monitoring/reporting failures, PFAS detections in stored records, lead/copper context
Ottumwa Water WorksIA908301225,529Surface water416recent violations recorded, recent enforcement history, recent monitoring/reporting failures, PFAS detections in stored records
Oskaloosa Municipal Water DeptIA627300512,808Surface water414recent violations recorded, recent enforcement history, recent monitoring/reporting failures, PFAS detections in stored records, lead/copper context
Marion Co. Rural Water DistrictIA63427115,687Groundwater412recent violations recorded, recent enforcement history, recent monitoring/reporting failures, PFAS detections in stored records

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

131 of the community drinking-water systems in Iowa are currently scored. Analytics below are calculated from this covered subset only. Covered systems serve approximately 2.4M people.

What the Data Suggests

Iowa has 131 scored service markets in the Munimetric coverage set, covering roughly 2.4 million residents in total. At the latest reading, the state-level average lands at 23.1 out of 100, indicating early but meaningful signs of structural stress in aggregate. A relatively small share — roughly 5% — currently sit in elevated-stress bands.

Across state markets, Capex Pressure stands out as the dominant contributor to headline stress (12.9 points average), with Operational Stress a distant second at 5.1. That pattern suggests a particular kind of pressure — concentrated rather than broadly distributed.

550 active signals are recorded across state markets. The most prevalent is PFAS Contamination Risk, affecting 108 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 23.1 as of Aug 24, 2026. Movement since Aug 23, 2026 is flat.

Compact summary from 100 stored state observations.

State Family Contribution Summary

Capex Pressure12.9 / 20.0
Operational Stress5.1 / 20.0
Revenue Fragility3.5 / 20.0
Governance Risk1.5 / 20.0
Rate Constraint0.1 / 20.0

Signals

Signal Frequency

SignalSeverityMarkets affected% of scored
PFAS Contamination Riskhigh10882%
High-AGI Out-Migrationhigh9270%
Climate Hazard Exposurehigh7255%
Infrastructure Capital Gaphigh6550%
Lead & Copper Rule Riskhigh6147%
Compliance Escalationhigh4434%
Current Drought Severitymedium2519%
Utility Data Stalenesshigh2217%
Parent-Government Fiscal Stresshigh2217%
Population Served Declinehigh2015%
Housing Market Weaknessmedium118%
Monitoring / Reporting Failuresmedium65%
Income Erosionmedium22%

Markets

Top Markets

#MarketScoreBandPopulationSignals
1Des Moines Water Works42.8Fragile246K7
2Johnston Municipal Water Supply42.8Fragile25K7
3Urbandale Water Utility42.6Fragile46K7
4Ottumwa Water Works41.9Fragile26K6
5Fairfield Water Supply40.6Fragile10K7
6Fort Dodge Water Supply40.5Fragile26K6
7Ames Water Treatment Plant40.4Fragile55K7
8Bondurant Muni Water Supply38.8Watch9K6
9University Water System38.6Watch27K7
10Altoona Water Supply38.2Watch20K6
11Sioux City Water Supply37.3Watch86K7
12Ankeny, City of37.1Watch76K6
13Central Ia Water Assn (waverly)37.0Watch38K7
14Polk City Water Supply36.8Watch7K6
15Cedar Rapids Water Department36.7Watch142K5
16Boone Water Works35.9Watch13K5
17Rathbun Regional Water Assn (rathbun)35.5Watch33K6
18Eagle Grove Water Supply35.0Watch4K6
19Grinnell Water Department34.8Watch10K6
20Rock Valley Water Supply33.6Watch4K6

Comparison

State Comparison

National average: 24.4

RankStateAvg ScoreBandMarketsDelta vs State
30Maryland23.4Watch78+0.3
31North Carolina23.4Watch276+0.3
32Iowa23.1Watch131+0.0
33Idaho22.7Watch51-0.4
34Nevada22.6Watch44-0.5

Analytical posture

State Stress Analytics

Score Distribution

Distribution of scored market scores with the state average overlay.

Avg 23.1

131 markets plotted.

Stress vs Population

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

Des Moines Water Works Population: 246,055 Score: 42.8Johnston Municipal Water Supply Population: 24,897 Score: 42.8Urbandale Water Utility Population: 45,605 Score: 42.6Ottumwa Water Works Population: 25,529 Score: 41.9Fairfield Water Supply Population: 9,821 Score: 40.6Fort Dodge Water Supply Population: 25,874 Score: 40.5Ames Water Treatment Plant Population: 55,177 Score: 40.4Bondurant Muni Water Supply Population: 9,393 Score: 38.8University Water System Population: 26,684 Score: 38.6Altoona Water Supply Population: 19,565 Score: 38.2Sioux City Water Supply Population: 85,791 Score: 37.3Ankeny, City of Population: 76,207 Score: 37.1Central Ia Water Assn (waverly) Population: 37,820 Score: 37.0Polk City Water Supply Population: 6,533 Score: 36.8Cedar Rapids Water Department Population: 142,364 Score: 36.7Boone Water Works Population: 12,704 Score: 35.9Rathbun Regional Water Assn (rathbun) Population: 33,000 Score: 35.5Eagle Grove Water Supply Population: 3,601 Score: 35.0Grinnell Water Department Population: 9,564 Score: 34.8Rock Valley Water Supply Population: 4,059 Score: 33.6Grimes Water Supply Population: 17,809 Score: 32.8West Des Moines Water Works Population: 73,959 Score: 32.8Mason City Water Department Population: 27,338 Score: 32.8North Liberty Water Supply Population: 23,276 Score: 32.6Marshalltown Water Works Population: 27,680 Score: 32.3Denison Water Supply Population: 9,381 Score: 31.5Ft Madison Muni Water Works Population: 11,087 Score: 31.5Coralville Muni Water System Population: 22,318 Score: 31.3Sergeant Bluff Water Supply Population: 5,015 Score: 30.6Carter Lake Water District Population: 3,791 Score: 30.5Oskaloosa Municipal Water Dept Population: 12,808 Score: 29.9Carroll Municipal Water Supply Population: 10,184 Score: 29.6Iowa City Water Department Population: 68,753 Score: 29.4Glenwood Municipal Utilities Population: 5,449 Score: 29.3Rathbun Reg Water Assn (ft Madison) Population: 11,840 Score: 29.2Clive Water Department Population: 20,277 Score: 29.1Atlantic Municipal Utilities Population: 7,252 Score: 29.1Xenia Rwd (des Moines) Population: 12,860 Score: 29.1Asbury Municipal Water System Population: 5,943 Score: 29.1Dyersville Municipal Water Co Population: 4,477 Score: 29.0Algona Municipal Utilities Population: 5,487 Score: 28.4Dubuque Water Works Population: 59,667 Score: 27.6Story City Water Dept Population: 3,357 Score: 27.4Regional Water Population: 4,132 Score: 27.4Isu Population: 42,000 Score: 27.0Osceola Rural Water System-North Population: 7,002 Score: 26.9Cedar Falls Municipal Water Utilities Population: 40,713 Score: 26.6Mount Pleasant Municipal Utilities Population: 9,274 Score: 26.5Keokuk Municipal Water Works Population: 9,900 Score: 26.3Spirit Lake Waterworks Population: 6,167 Score: 25.9Anamosa Municipal Water Supply Population: 4,457 Score: 25.9Creston Water Supply Population: 7,536 Score: 25.8Xenia Rwd (boone) Population: 4,975 Score: 25.5Southeast Polk Rwd Population: 7,565 Score: 25.4Storm Lake Water Treatment Plant Population: 11,431 Score: 25.2Estherville Water Treatment Plant Population: 5,904 Score: 25.1Waterloo Water Works Population: 69,504 Score: 24.9Burlington Municipal Waterworks Population: 26,015 Score: 24.5Mahaska Rural Water System, Inc. Population: 9,818 Score: 24.2Humboldt Municipal Water Dept Population: 4,792 Score: 24.0Lemars Water Department Population: 10,606 Score: 23.8West Liberty Water Utility Population: 3,938 Score: 23.6Hiawatha Water Dept Population: 7,183 Score: 23.4Waukee Water Supply Population: 31,823 Score: 23.3Marion Co. Rural Water District Population: 5,687 Score: 23.3Nevada Water Supply Population: 6,925 Score: 23.3Iowa-American Wtr Co-Clinton District Population: 24,769 Score: 23.1Muscatine Power & Water Population: 25,516 Score: 23.0Council Bluffs Water Works Population: 64,447 Score: 22.9Marion Municipal Water Dept Population: 41,623 Score: 22.9Hampton Muni Water Works Population: 4,337 Score: 22.7Clarinda Water Plant Population: 4,372 Score: 22.0Forest City Water Supply Population: 4,285 Score: 22.0Emmetsburg Municipal Water Department Population: 3,733 Score: 21.9Orange City Municipal Water Department Population: 6,267 Score: 21.8Sioux Center Municipal Water Department Population: 8,231 Score: 21.7Camanche Water Supply Population: 4,570 Score: 21.5Vinton Municipal Water Dept Population: 4,938 Score: 21.4Sirwa #2 (creston) Population: 20,793 Score: 21.4Eldridge Water Supply Population: 6,726 Score: 21.3Osage Municipal Water Supply Population: 3,637 Score: 21.3Southern Sioux County Rural Water Population: 5,420 Score: 21.2Rathbun Reg Wtr Assn (burlington) Population: 8,375 Score: 21.1Knoxville Water Works Population: 8,400 Score: 20.0Pella Water Works Department Population: 11,052 Score: 20.0Sheldon Water Department Population: 5,512 Score: 20.0Osceola Water Works Population: 5,503 Score: 19.9Cherokee Water Supply - Plant 1 Population: 5,199 Score: 19.5Spencer Municipal Water Utility Population: 11,325 Score: 19.5Indianola Water Supply Population: 15,833 Score: 19.4West Central Rwa - Nish System Population: 3,573 Score: 19.4Iowa-American Wtr Co-Davenport Population: 147,720 Score: 19.1Poweshiek Water Association Population: 13,920 Score: 18.9Mount Vernon Water Supply Population: 4,527 Score: 17.4Chariton Municipal Water Works Population: 4,381 Score: 16.9Maquoketa Municipal Water Population: 6,128 Score: 16.0Newton Water Supply Population: 16,518 Score: 16.0Wapello Rural Water Assoc. Population: 17,263 Score: 16.0Warren Water District Population: 20,095 Score: 16.0Norwalk Water Supply Population: 14,334 Score: 16.0Xenia Rwd (north) Population: 6,122 Score: 15.9Centerville Municipal Waterworks Population: 5,344 Score: 15.7Albia Municipal Water Works Population: 3,721 Score: 15.7Red Oak Water Supply Population: 5,596 Score: 15.5Clear Lake Water Department Population: 7,687 Score: 15.2De Witt Water Supply Population: 5,514 Score: 15.2Shenandoah Water Dept Population: 4,925 Score: 15.1Carlisle Water Supply Population: 4,170 Score: 14.9Iowa Lakes Regional Water - Lakes Area Population: 9,021 Score: 14.9Waverly Water Department Population: 10,394 Score: 13.6Adel Municipal Water Works Population: 6,461 Score: 13.5Evansdale Water Works Population: 4,561 Score: 13.3Huxley Waterworks Dept Population: 4,244 Score: 13.1Charles City Water Supply Population: 7,446 Score: 12.5Manchester Water Supply Population: 5,077 Score: 11.3Iowa Falls Water Department Population: 5,146 Score: 9.5Oelwein Municipal Water Works Population: 5,920 Score: 9.1Washington Water Department Population: 7,362 Score: 8.0Waukon Water Department Population: 3,827 Score: 8.0Webster City Water Supply Population: 7,825 Score: 8.0Iowa Lakes Regional Water Population: 6,755 Score: 8.0New Hampton Water Supply Population: 3,494 Score: 7.3Perry Municipal Water Works Population: 7,836 Score: 7.2Decorah Water Department Population: 7,615 Score: 6.0Jefferson Water Department Population: 4,182 Score: 5.5Independence Water Dept Population: 6,064 Score: 4.0Cresco Waterworks Population: 3,913 Score: 4.0Winterset Municipal Waterworks Population: 5,428 Score: 4.0Harlan Municipal Utilities Population: 5,067 Score: 4.0Monticello Water Supply Population: 4,040 Score: 0.0Worth Co Interchange 214 Water Supply Population: 7,300 Score: 0.0MISI score (0-100)Population served (log scale)

131 markets plotted.

Population View

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

~2.4M people served by 131 systems in Iowa

Stable
Watch
Fragile
High Stress
Critical

131 scored systems · colored by stress band

Peer Constellation

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

24 nearest peers by score distance.

Score Trend

Latest

23.1

Trend

+16.8

Observations

100

Mar 18, 2026 · 6.3Mar 20, 2026 · 6.3Mar 21, 2026 · 6.3Mar 22, 2026 · 6.3Mar 24, 2026 · 3.3Mar 25, 2026 · 7.9Mar 29, 2026 · 7.9Apr 2, 2026 · 13.3Apr 3, 2026 · 13.4Apr 4, 2026 · 9.6Apr 5, 2026 · 9.6Apr 6, 2026 · 24.7Apr 7, 2026 · 24.7Apr 8, 2026 · 24.8Apr 9, 2026 · 24.8Apr 10, 2026 · 24.5Apr 13, 2026 · 24.5Apr 14, 2026 · 24.5Apr 18, 2026 · 24.5Apr 19, 2026 · 24.5Apr 21, 2026 · 23.8Apr 22, 2026 · 23.8Apr 23, 2026 · 23.8Apr 24, 2026 · 23.8Apr 25, 2026 · 23.8Apr 26, 2026 · 22.6Apr 27, 2026 · 22.6Apr 28, 2026 · 22.6Apr 29, 2026 · 22.6Apr 30, 2026 · 22.6May 1, 2026 · 22.6May 2, 2026 · 22.6May 3, 2026 · 22.6May 4, 2026 · 22.6May 5, 2026 · 22.6May 6, 2026 · 22.6May 7, 2026 · 22.6May 8, 2026 · 22.6May 9, 2026 · 22.6May 10, 2026 · 22.6May 17, 2026 · 22.8May 19, 2026 · 22.8May 21, 2026 · 22.8May 22, 2026 · 22.8May 24, 2026 · 22.8May 26, 2026 · 22.8May 28, 2026 · 22.8May 31, 2026 · 23.0Jun 1, 2026 · 23.0Jun 2, 2026 · 23.0Jun 8, 2026 · 23.6Jun 11, 2026 · 23.6Jun 12, 2026 · 23.3Jun 14, 2026 · 23.3Jun 15, 2026 · 23.3Jun 16, 2026 · 23.3Jun 22, 2026 · 23.0Jun 23, 2026 · 23.0Jun 28, 2026 · 22.9Jun 29, 2026 · 22.9Jun 30, 2026 · 22.9Jul 1, 2026 · 22.9Jul 2, 2026 · 22.9Jul 3, 2026 · 22.9Jul 4, 2026 · 22.9Jul 5, 2026 · 22.9Jul 6, 2026 · 22.9Jul 7, 2026 · 22.9Jul 8, 2026 · 22.9Jul 9, 2026 · 22.9Jul 10, 2026 · 22.9Jul 11, 2026 · 22.9Jul 12, 2026 · 22.9Jul 13, 2026 · 22.9Jul 14, 2026 · 22.9Jul 16, 2026 · 22.9Jul 17, 2026 · 22.9Jul 18, 2026 · 22.9Jul 19, 2026 · 22.9Jul 20, 2026 · 22.9Jul 21, 2026 · 22.9Jul 22, 2026 · 22.9Jul 23, 2026 · 22.9Jul 29, 2026 · 23.0Jul 30, 2026 · 23.0Jul 31, 2026 · 23.1Aug 1, 2026 · 23.3Aug 2, 2026 · 23.3Aug 3, 2026 · 23.3Aug 8, 2026 · 23.3Aug 9, 2026 · 23.3Aug 10, 2026 · 23.3Aug 15, 2026 · 23.2Aug 16, 2026 · 23.2Aug 17, 2026 · 23.2Aug 18, 2026 · 23.2Aug 20, 2026 · 23.2Aug 22, 2026 · 23.1Aug 23, 2026 · 23.1Aug 24, 2026 · 23.1Mar 18, 2026Aug 24, 2026

Extended layers

Advanced State Context

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

Markets & signals

Priority Views

#MarketScoreBandPopulationSignals
1Des Moines Water Works42.8Fragile246K7
2Johnston Municipal Water Supply42.8Fragile25K7
3Urbandale Water Utility42.6Fragile46K7
4Ottumwa Water Works41.9Fragile26K6
5Fairfield Water Supply40.6Fragile10K7
6Fort Dodge Water Supply40.5Fragile26K6
7Ames Water Treatment Plant40.4Fragile55K7
8Bondurant Muni Water Supply38.8Watch9K6
9University Water System38.6Watch27K7
10Altoona Water Supply38.2Watch20K6
11Sioux City Water Supply37.3Watch86K7
12Ankeny, City of37.1Watch76K6
13Central Ia Water Assn (waverly)37.0Watch38K7
14Polk City Water Supply36.8Watch7K6
15Cedar Rapids Water Department36.7Watch142K5
16Boone Water Works35.9Watch13K5
17Rathbun Regional Water Assn (rathbun)35.5Watch33K6
18Eagle Grove Water Supply35.0Watch4K6
19Grinnell Water Department34.8Watch10K6
20Rock Valley Water Supply33.6Watch4K6

Detailed records

Registers

#MarketScoreBandPopulationSignals
1Des Moines Water Works42.8Fragile246K7
2Johnston Municipal Water Supply42.8Fragile25K7
3Urbandale Water Utility42.6Fragile46K7
4Ottumwa Water Works41.9Fragile26K6
5Fairfield Water Supply40.6Fragile10K7
6Fort Dodge Water Supply40.5Fragile26K6
7Ames Water Treatment Plant40.4Fragile55K7
8Bondurant Muni Water Supply38.8Watch9K6
9University Water System38.6Watch27K7
10Altoona Water Supply38.2Watch20K6
11Sioux City Water Supply37.3Watch86K7
12Ankeny, City of37.1Watch76K6
13Central Ia Water Assn (waverly)37.0Watch38K7
14Polk City Water Supply36.8Watch7K6
15Cedar Rapids Water Department36.7Watch142K5
16Boone Water Works35.9Watch13K5
17Rathbun Regional Water Assn (rathbun)35.5Watch33K6
18Eagle Grove Water Supply35.0Watch4K6
19Grinnell Water Department34.8Watch10K6
20Rock Valley Water Supply33.6Watch4K6

Keep monitoring this state

Research access covers saved monitoring, alerts, recurring briefs, and team review.

Water Infrastructure in Iowa

Munimetric tracks infrastructure stress across 131 community drinking-water systems in Iowa. 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 Iowa 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 Iowa?
Munimetric assigns a state-level average MISI score based on the individual scores of all covered community water systems in Iowa. 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 Iowa face the most infrastructure stress?
The state page ranks the highest-stress systems in Iowa 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 Iowa compare to other states for drinking water infrastructure risk?
Iowa 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 Iowa 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 Iowa 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 Iowa?
Munimetric tracks signals such as compliance escalation, monitoring and reporting failures, population decline, income erosion, data staleness, and parent-government fiscal stress across Iowa water systems.
Does Munimetric track boil water advisories in Iowa?
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.