Large Systems Nationwide

743 systems in this national size-band category.

Community water systems serving more than 100,000 people. Large systems typically have more organizational capacity and diversified revenue streams, but face correspondingly larger capital replacement needs and regulatory complexity.

SystemStatePop. ServedMISIBand

NEW YORK CITY SYSTEMNY8.3M51.114Fragile

LOS ANGELES-CITY, DEPT. OF WATER & POWERCA3.9M37.877Watch

CITY OF HOUSTONTX3.0M33.862Watch

CHICAGOIL2.7M46.104Fragile

MWRAMA2.7M38.523Watch

MDWASA - MAIN SYSTEMFL2.4M46.372Fragile

SAN ANTONIO WATER SYSTEMTX2.1M38.335Watch

NEW YORK STATE FAIRNY2.0M14.855Stable

WASHINGTON SUBURBAN SANITARY COMMISSIONMD1.9M30.406Watch

BALTIMORE CITY-BUREAU WATER SUMD1.8M17.881Stable

PHOENIX CITY OFAZ1.7M39.423Watch

CITY OF BALTIMOREMD1.6M45.211Fragile

PhiladelphiaPA1.6M50.593Fragile

LAS VEGAS VALLEY WATER DISTRICTNV1.5M20.920Watch

EAST BAY MUDCA1.4M34.589Watch

SAN DIEGO, CITY OFCA1.4M22.936Watch

DALLAS WATER UTILITYTX1.4M27.097Watch

ClevelandOH1.3M34.334Watch

ColumbusOH1.3M36.665Watch

WASHINGTON SUBURBAN SANITARY CMD1.3M13.924Stable

PATUXEUNT PLANT WSSCMD1.3M13.924Stable

POTOMAC PLANT WSSCMD1.3M13.924Stable

DENVER WATER BOARDCO1.3M50.155Fragile

CHARLOTTE-MECKLENBURG UTILITYNC1.2M28.901Watch

FAIRFAX COUNTY WATER AUTHORITYVA1.1M31.396Watch

CITY OF AUSTIN WATER & WASTEWATERTX1.1M37.123Watch

MO AMERICAN ST LOUIS CO ST CHARLES COMO1.1M40.589Fragile

SUFFOLK COUNTY WATER AUTHORITYNY1.1M37.325Watch

SEATTLE PUBLIC UTILITIESWA1.1M46.218Fragile

ATLANTAGA1.1M42.762Fragile

METROPOLITANOPR1.1M34.662Watch

SAN JOSE WATER COMPANYCA1.0M40.023Fragile

NEW YORK CITY - CROTON SYSTEMNY1.0M33.788Watch

GWINNETT CO. DEPT. OF WATER RESOURCESGA975K16.916Stable

CITY OF FORT WORTHTX956K25.933Watch

CITIZENS WATER - INDIANAPOLISIN880K28.635Watch

SFPUC CITY DISTRIBUTION DIVISIONCA848K42.049Fragile

JEA MAJOR GRIDFL827K31.744Watch

AQUA PA MAIN SYSTEMPA823K46.581Fragile

UNITED WATER NJNJ793K41.732Fragile

NASHVILLE WATER DEPT #1TN778K39.232Watch

LOUISVILLE WATER COMPANYKY765K34.315Watch

PHILA SUB WATER COPA759K16.833Stable

CincinnatiOH750K38.496Watch

EL PASO WATER UTILITIES PUBLIC SERVICE BTX747K42.725Fragile

DEKALB COUNTYGA743K30.818Watch

CITY OF TAMPA WATER DEPARTMENTFL734K41.770Fragile

TUCSON CITY OFAZ733K31.585Watch

COBB COUNTYGA695K40.230Fragile

CINCINNATI, CITY OF-MILLEROH686K11.650Stable

PA AMER WATER CO-PITTSBURGHPA686K41.022Fragile

BOSTON WATER AND SEWER COMMISSION (MWRA)MA676K54.860Fragile

EASTERN MUNICIPAL WDCA667K22.605Watch

PORTLAND WATER BUREAUOR666K50.721Fragile

METROPOLITAN UTILITIES DISTRICTNE660K33.862Watch

MEMPHIS LIGHT, GAS, & WATERTN660K17.670Stable

OKLAHOMA CITYOK644K43.994Fragile

RALEIGH, CITY OFNC640K20.899Watch

DETROIT CITY OFMI633K26.678Watch

D.C. WATER AND SEWER AUTHORITYDC632K48.959Fragile

HNL-WINDWARD-PEARL HARBORHI631K30.027Watch

MILWAUKEE WATERWORKSWI626K49.201Fragile

PALM BEACH COUNTY WATER UTILITIESFL619K41.767Fragile

NJ AMERICAN WATER - RARITANNJ615K41.776Fragile

BATON ROUGE WATER COMPANYLA597K35.901Watch

BIRMINGHAM WATER WORKS BOARDAL585K26.865Watch

AlbuquerqueNM560K28.218Watch

CITY OF FRESNOCA546K31.192Watch

ORLANDO UTILITIES COMMISSION (7 WPS)FL536K31.238Watch

QUEEN LANE WATER PLANTPA535K25.242Watch

AURORA CITY OFCO533K25.904Watch

CITY OF SACRAMENTO MAINCA520K31.192Watch

PittsburghPA520K52.362Fragile

NEW YORK CITY - GROUNDWATER SYSTEMNY518K28.315Watch

KANSAS CITYMO514K37.671Watch

PINELLAS COUNTY UTILITIESFL506K31.238Watch

ASHBURTONMD500K17.881Stable

BALTIMORE CITY MUNICIPAL WORKSMD500K17.881Stable

MCWANY497K31.828Watch

WSSC (INCLUDED IN 0150005)MD482K19.633Stable

WATER DISTRICT 1 OF JOHNSON COKS482K22.936Watch

SOUTH-CENTRAL SERVICE AREAFL474K42.709Fragile

LONG BEACH-CITY, WATER DEPT.CA467K37.113Watch

MESA CITY OFAZ466K35.175Watch

COLORADO SPRINGS UTILITIESCO464K35.639Watch

TACOMA WATER DIVISION, CITY OFWA449K46.738Fragile

COLUMBUS-HAP CREMEAN WTPOH447K25.596Watch

IRVINE RANCH WATER DISTRICTCA445K46.510Fragile

TRUCKEE MEADOWS WATER AUTHORITYNV442K24.002Watch

VIRGINIA BEACH, CITY OFVA438K23.255Watch

NORTH FULTON COUNTYGA435K35.232Watch

ARGYLE FOREST WTPFL427K16.628Stable

MinneapolisMN425K52.418Fragile

CLEVELAND,CITY OF-BALDWIN PLT.OH424K19.186Stable

REGIONAL WATER AUTHORITYCT419K39.352Watch

TULSAOK413K23.681Watch

FCWA - LORTON WTP OLD, NEW, & RIVER STAVA412K23.296Watch

NEWPORT NEWS, CITY OFVA407K23.061Watch

CITY OF ARLINGTONTX405K25.933Watch

TULSA AB JEWELLOK403K23.493Watch

GREENVILLE WATER SYSTEM (2310001)SC396K28.128Watch

WICHITA, CITY OFKS396K31.192Watch

Saint Paul Regional Water ServicesMN393K40.788Fragile

METROPOLITAN DISTRICT COMMISSIONCT391K36.944Watch

CHESTERFIELD CO CENTRAL WATER SYSTEMVA390K22.603Watch

WINSTON-SALEM, CITY OFNC388K18.854Stable

SALT LAKE CITY WATER SYSTEMUT381K37.241Watch

NJ AMERICAN WATER - COASTAL NORTHNJ378K36.095Watch

NORTH LAS VEGAS UTILITIESNV377K26.916Watch

VANCOUVER, CITY OFWA373K38.295Watch

CENTRAL ARKANSAS WATERAR368K17.906Stable

ENRIQUE ORTEGA LA PLATA-METROPPR364K12.915Stable

ToledoOH360K43.050Fragile

CLEVELAND,CITY OF-MORGAN PLANTOH353K19.186Stable

AQUARION WATER CO OF CT-MAIN SYSTEMCT352K42.427Fragile

OCWANY350K33.340Watch

ST PETERSBURG, CITY OFFL350K26.745Watch

CITY OF ANAHEIMCA349K41.899Fragile

MANATEE COUNTY UTILITIES DEPTFL348K27.492Watch

ALAMEDA COUNTY WATER DISTRICTCA344K30.924Watch

HENDERSON CITY OFNV337K29.176Watch

ECWA DIRECTNY335K24.845Watch

NEW ORLEANS CARROLLTON WWLA335K46.538Fragile

LOUDOUN WATER - CENTRAL SYSTEMVA335K44.450Fragile

PROVIDENCE-CITY OFRI333K39.321Watch

COLUMBUS-DUBLIN ROAD WTPOH331K31.069Watch

CHARLOTTE HOSKINSNC330K13.924Stable

HENRICO COUNTY WATER SYSTEMVA330K24.766Watch

CHARLESTON WATER SYSTEM (1010001)SC327K36.628Watch

CLEVELAND,CITY OF-NOTTINGHAM POH327K19.186Stable

DurhamNC322K25.028Watch

BELMONT WATER TREATMENT PLANTPA320K25.242Watch

GreensboroNC320K32.439Watch

COLUMBIA CITY OF (4010001)SC320K35.105Watch

CITY OF CORPUS CHRISTITX318K45.782Fragile

BELLEVUE, CITY OFWA317K35.522Watch

JEA: NORTH GRIDFL316K16.628Stable

CITY OF SANTA ANACA311K36.713Watch

PASSAIC VALLEY WATER COMMISSIONNJ310K39.099Watch

SACRAMENTO CITY-DIV WTR & SWRCA310K7.988Stable

ST LOUIS CITYMO305K43.548Fragile

CHINO BASIN MWDCA300K16.665Stable

KENTUCKY-AMERICAN WATER COKY300K39.567Watch

RIVERSIDE, CITY OFCA298K20.688Watch

CLAYTON COUNTY WATER AUTHORITYGA298K21.114Watch

LINCOLN, CITY OFNE296K30.345Watch

NEWARK WATER DEPARTMENTNJ294K48.256Fragile

SANTA CLARITA WATER DIVISION FCA294K29.414Watch

COCOA, CITY OFFL294K36.269Watch

OCUD/EASTERN WATER SYSTEM (1 WP)FL293K33.488Watch

CITY OF PLANOTX292K16.942Stable

GLEN BURNIE-BROADNECKMD291K39.940Watch

HOWARD COUNTY D.P.W. DISTRIBUTIONMD286K40.675Fragile

LEE COUNTY UTILITIESFL283K40.794Fragile

AkronOH280K37.791Watch

MOBILE BOARD OF WATER AND SEWER COMM.AL279K24.457Watch

GSWC - SOUTHWESTCA278K29.414Watch

HELIX WATER DISTRICTCA278K26.682Watch

MONTGOMERY WATER WORKSAL276K22.932Watch

OKLAHOMA CITY DRAPEROK276K36.784Watch

BUFFALO WATER AUTHORITYNY276K47.925Fragile

E JEFFERSON WW DISTRICT 1LA275K26.599Watch

LUBBOCK PUBLIC WATER SYSTEMTX275K24.666Watch

GRAND RAPIDSMI273K26.678Watch

SARASOTA CO SPECIAL UTIL DISTFL272K38.024Watch

MADISON WATER UTILITYWI272K39.099Watch

COACHELLA VWD: COVE COMMUNITYCA270K26.434Watch

UNITED WATER NEW YORKNY270K34.040Watch

FORT WAYNE - 3 RIVERS FILTRATION PLANTIN270K36.976Watch

CWS - BAKERSFIELDCA268K26.682Watch

UNITED WATER IDAHO INCID265K23.073Watch

NJ AMERICAN WATER - WESTERNNJ265K29.585Watch

CITY OF IRVINGTX265K27.097Watch

HUNTSVILLE UTILITIESAL262K20.688Watch

JERSEY CITY MUANJ262K50.155Fragile

CITY OF LAREDOTX260K40.735Fragile

COUNTY DISTRIBUTION SYSTEMVA255K12.360Stable

KNOXVILLE UTILITIES BOARD-KUBTN255K15.921Stable

CLARKSVILLE WATER DEPARTMENTTN252K11.122Stable

CITY OF GARLANDTX249K36.772Watch

SAN GABRIEL VALLEY WATER CO.-EL MONTECA248K38.340Watch

GILBERT, TOWN OFAZ248K40.000Watch

GSW&SA (2620004)SC248K32.118Watch

CHANDLER CITY OFAZ247K31.585Watch

DES MOINES WATER WORKSIA246K42.826Fragile

EMERALD COAST UTILITIES AUTHORITYFL242K40.577Fragile

SCOTTSDALE CITY OFAZ241K38.921Watch

OTAY WATER DISTRICTCA238K22.936Watch

HIALEAH, CITY OFFL238K39.738Watch

SAN GABRIEL VALLEY WC - FONTANACA238K18.684Stable

DAYTON, CITY OF-OTTAWA PLANTOH236K7.988Stable

GLENDALE CITY OFAZ235K31.585Watch

NORFOLK, CITY OFVA234K35.352Watch

MIDDLESEX WATER COMPANYNJ233K53.818Fragile

CITY OF FRISCOTX232K27.198Watch

ARTESIAN WATER COMPANYDE231K31.814Watch

RICHMOND, CITY OFVA229K28.053Watch

COLUMBUSGA229K34.516Watch

THORNTON CITY OFCO226K37.306Watch

TUALATIN VALLEY WATER DISTRICTOR225K46.104Fragile