Large Systems Nationwide

711 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 SYSTEMNY8.3M44.697Fragile

LOS ANGELES-CITY, DEPT. OF WATER & POWERCA3.9M41.397Fragile

CITY OF HOUSTONTX3.0M35.840Watch

CHICAGOIL2.7M49.387Fragile

SAN ANTONIO WATER SYSTEMTX2.6M42.288Fragile

MWRAMA2.6M36.544Watch

MDWASA - MAIN SYSTEMFL2.4M46.372Fragile

NEW YORK STATE FAIRNY2.0M14.855Stable

WASHINGTON SUBURBAN SANITARY COMMISSIONMD1.9M30.406Watch

BALTIMORE CITY-BUREAU WATER SUMD1.8M15.902Stable

PHOENIX CITY OFAZ1.7M35.833Watch

PhiladelphiaPA1.6M50.593Fragile

CITY OF BALTIMOREMD1.6M45.211Fragile

LAS VEGAS VALLEY WATER DISTRICTNV1.5M20.920Watch

EAST BAY MUDCA1.4M34.589Watch

SAN DIEGO, CITY OFCA1.4M26.456Watch

DALLAS WATER UTILITYTX1.4M30.065Watch

ClevelandOH1.3M34.334Watch

ColumbusOH1.3M36.665Watch

POTOMAC PLANT WSSCMD1.3M11.944Stable

WASHINGTON SUBURBAN SANITARY CMD1.3M11.944Stable

PATUXEUNT PLANT WSSCMD1.3M11.944Stable

DENVER WATER BOARDCO1.3M50.155Fragile

CHARLOTTE-MECKLENBURG UTILITYNC1.2M27.911Watch

SEATTLE PUBLIC UTILITIESWA1.2M48.196Fragile

FAIRFAX COUNTY WATER AUTHORITYVA1.1M30.406Watch

CITY OF AUSTIN WATER & WASTEWATERTX1.1M33.170Watch

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

SUFFOLK COUNTY WATER AUTHORITYNY1.1M34.357Watch

ATLANTAGA1.1M42.762Fragile

METROPOLITANOPR1.1M36.641Watch

SAN JOSE WATER COMPANYCA1.0M38.047Watch

NEW YORK CITY - CROTON SYSTEMNY1.0M30.820Watch

GWINNETT CO. DEPT. OF WATER RESOURCESGA975K16.916Stable

CITY OF FORT WORTHTX956K35.817Watch

CITIZENS WATER - INDIANAPOLISIN880K28.635Watch

SFPUC CITY DISTRIBUTION DIVISIONCA848K42.049Fragile

JEA MAJOR GRIDFL827K31.744Watch

AQUA PA MAIN SYSTEMPA823K46.896Fragile

LOUISVILLE WATER COMPANYKY807K34.315Watch

UNITED WATER NJNJ793K40.788Fragile

NASHVILLE WATER DEPT #1TN778K38.288Watch

PHILA SUB WATER COPA759K14.855Stable

CincinnatiOH750K38.496Watch

EL PASO WATER UTILITIES PUBLIC SERVICE BTX747K42.725Fragile

DEKALB COUNTYGA743K30.818Watch

CITY OF TAMPA WATER DEPARTMENTFL734K41.770Fragile

TUCSON CITY OFAZ733K35.490Watch

COBB COUNTYGA695K40.230Fragile

CINCINNATI, CITY OF-MILLEROH686K11.650Stable

PA AMER WATER CO-PITTSBURGHPA686K41.022Fragile

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

PALM BEACH COUNTY WATER UTILITIESFL671K42.709Fragile

KENTUCKY-AMERICAN WATER COKY669K42.826Fragile

EASTERN MUNICIPAL WDCA667K28.103Watch

PORTLAND WATER BUREAUOR666K50.721Fragile

METROPOLITAN UTILITIES DISTRICTNE660K33.862Watch

MEMPHIS LIGHT, GAS, & WATERTN660K17.670Stable

RALEIGH, CITY OFNC650K18.920Stable

OKLAHOMA CITYOK644K43.994Fragile

DETROIT CITY OFMI633K28.656Watch

D.C. WATER AND SEWER AUTHORITYDC632K50.609Fragile

HNL-WINDWARD-PEARL HARBORHI631K30.027Watch

MILWAUKEE WATERWORKSWI626K49.201Fragile

NJ AMERICAN WATER - RARITANNJ615K38.808Watch

BATON ROUGE WATER COMPANYLA597K32.406Watch

BIRMINGHAM WATER WORKS BOARDAL585K30.455Watch

AlbuquerqueNM560K26.387Watch

KANSAS CITYMO553K30.222Watch

CITY OF FRESNOCA546K34.712Watch

ORLANDO UTILITIES COMMISSION (7 WPS)FL536K29.310Watch

QUEEN LANE WATER PLANTPA535K23.264Watch

AURORA CITY OFCO533K25.904Watch

CITY OF SACRAMENTO MAINCA528K34.712Watch

MCWANY525K31.828Watch

PittsburghPA520K52.362Fragile

NEW YORK CITY - GROUNDWATER SYSTEMNY518K30.820Watch

SOUTH-CENTRAL SERVICE AREAFL515K42.709Fragile

PINELLAS COUNTY UTILITIESFL506K31.238Watch

BALTIMORE CITY MUNICIPAL WORKSMD500K15.902Stable

ASHBURTONMD500K15.902Stable

WATER DISTRICT 1 OF JOHNSON COKS490K22.936Watch

WSSC (INCLUDED IN 0150005)MD482K18.643Stable

LONG BEACH-CITY, WATER DEPT.CA467K40.633Fragile

MESA CITY OFAZ466K35.175Watch

COLORADO SPRINGS UTILITIESCO464K36.628Watch

COLUMBUS-HAP CREMEAN WTPOH447K25.596Watch

TACOMA WATER DIVISION, CITY OFWA446K48.716Fragile

IRVINE RANCH WATER DISTRICTCA445K46.510Fragile

TRUCKEE MEADOWS WATER AUTHORITYNV442K24.002Watch

VIRGINIA BEACH, CITY OFVA438K21.277Watch

NORTH FULTON COUNTYGA435K30.337Watch

ARGYLE FOREST WTPFL427K16.628Stable

GREENVILLE WATER SYSTEM (2310001)SC426K21.665Watch

MinneapolisMN425K53.410Fragile

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

REGIONAL WATER AUTHORITYCT419K39.352Watch

CITY OF ARLINGTONTX414K27.911Watch

TULSAOK413K25.659Watch

FCWA - LORTON WTP OLD, NEW, & RIVER STAVA412K22.306Watch

NEWPORT NEWS, CITY OFVA407K23.061Watch

TULSA AB JEWELLOK403K25.471Watch

WICHITA, CITY OFKS396K34.160Watch

Saint Paul Regional Water ServicesMN393K41.732Fragile

WINSTON-SALEM, CITY OFNC392K13.428Stable

METROPOLITAN DISTRICT COMMISSIONCT391K41.259Fragile

CHESTERFIELD CO CENTRAL WATER SYSTEMVA390K16.794Stable

SALT LAKE CITY WATER SYSTEMUT384K37.241Watch

NJ AMERICAN WATER - COASTAL NORTHNJ378K33.127Watch

NORTH LAS VEGAS UTILITIESNV377K26.916Watch

VANCOUVER, CITY OFWA373K38.295Watch

CENTRAL ARKANSAS WATERAR368K18.895Stable

ENRIQUE ORTEGA LA PLATA-METROPPR364K14.894Stable

ToledoOH360K41.074Fragile

COLUMBIA CITY OF (4010001)SC354K35.105Watch

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

NEW ORLEANS CARROLLTON WWLA335K48.516Fragile

LOUDOUN WATER - CENTRAL SYSTEMVA335K43.460Fragile

DurhamNC333K23.049Watch

PROVIDENCE-CITY OFRI333K36.353Watch

COLUMBUS-DUBLIN ROAD WTPOH331K31.069Watch

CHARLOTTE HOSKINSNC330K11.944Stable

HENRICO COUNTY WATER SYSTEMVA330K21.798Watch

CHARLESTON WATER SYSTEM (1010001)SC327K35.639Watch

CLEVELAND,CITY OF-NOTTINGHAM POH327K19.186Stable

BELLEVUE, CITY OFWA321K37.500Watch

BELMONT WATER TREATMENT PLANTPA320K23.264Watch

GreensboroNC320K31.450Watch

CITY OF CORPUS CHRISTITX318K46.726Fragile

JEA: NORTH GRIDFL316K16.628Stable

ECWA DIRECTNY313K24.845Watch

CITY OF SANTA ANACA311K36.713Watch

PASSAIC VALLEY WATER COMMISSIONNJ310K37.121Watch

HUNTSVILLE UTILITIESAL310K16.942Stable

SACRAMENTO CITY-DIV WTR & SWRCA310K14.712Stable

GRAND RAPIDSMI307K26.678Watch

ST LOUIS CITYMO305K38.075Watch

CHINO BASIN MWDCA300K22.163Watch

RIVERSIDE, CITY OFCA298K26.186Watch

CLAYTON COUNTY WATER AUTHORITYGA298K21.114Watch

LINCOLN, CITY OFNE296K30.345Watch

NEWARK WATER DEPARTMENTNJ294K44.302Fragile

SANTA CLARITA WATER DIVISION FCA294K32.934Watch

COCOA, CITY OFFL294K36.269Watch

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

CITY OF PLANOTX292K18.920Stable

GLEN BURNIE-BROADNECKMD291K36.974Watch

HOWARD COUNTY D.P.W. DISTRIBUTIONMD286K39.685Watch

LEE COUNTY UTILITIESFL283K37.876Watch

AkronOH280K37.791Watch

MOBILE BOARD OF WATER AND SEWER COMM.AL279K22.845Watch

GSWC - SOUTHWESTCA278K32.934Watch

HELIX WATER DISTRICTCA278K30.202Watch

BUFFALO WATER AUTHORITYNY276K47.925Fragile

OKLAHOMA CITY DRAPEROK276K37.773Watch

MONTGOMERY WATER WORKSAL276K22.932Watch

E JEFFERSON WW DISTRICT 1LA275K28.577Watch

LUBBOCK PUBLIC WATER SYSTEMTX275K35.490Watch

NJ AMERICAN WATER - WESTERNNJ274K26.619Watch

SARASOTA CO SPECIAL UTIL DISTFL272K38.024Watch

MADISON WATER UTILITYWI272K39.099Watch

COACHELLA VWD: COVE COMMUNITYCA270K31.932Watch

UNITED WATER NEW YORKNY270K36.015Watch

FORT WAYNE - 3 RIVERS FILTRATION PLANTIN270K42.542Fragile

CWS - BAKERSFIELDCA268K30.202Watch

UNITED WATER IDAHO INCID265K23.073Watch

CITY OF IRVINGTX265K30.065Watch

JERSEY CITY MUANJ262K50.155Fragile

CITY OF LAREDOTX260K39.969Watch

NORTHERN KENTUCKY WATER SERVICEKY260K24.361Watch

COUNTY DISTRIBUTION SYSTEMVA255K11.370Stable

KNOXVILLE UTILITIES BOARD-KUBTN255K13.490Stable

GSW&SA (2620004)SC253K32.118Watch

CLARKSVILLE WATER DEPARTMENTTN252K7.492Stable

CITY OF GARLANDTX249K39.740Watch

SAN GABRIEL VALLEY WATER CO.-EL MONTECA248K41.860Fragile

GILBERT, TOWN OFAZ248K40.000Watch

CHANDLER CITY OFAZ247K31.585Watch

DES MOINES WATER WORKSIA246K42.826Fragile

ALDERWOOD WATER DISTRICTWA246K33.655Watch

EMERALD COAST UTILITIES AUTHORITYFL242K42.555Fragile

SCOTTSDALE CITY OFAZ241K38.921Watch

OTAY WATER DISTRICTCA238K26.456Watch

HIALEAH, CITY OFFL238K39.738Watch

SAN GABRIEL VALLEY WC - FONTANACA238K24.182Watch

DAYTON, CITY OF-OTTAWA PLANTOH236K7.988Stable

GLENDALE CITY OFAZ235K35.490Watch

NORFOLK, CITY OFVA234K33.374Watch

RICHMOND, CITY OFVA234K21.132Watch

MIDDLESEX WATER COMPANYNJ233K52.874Fragile

CITY OF FRISCOTX232K29.176Watch

ARTESIAN WATER COMPANYDE231K30.824Watch

COLUMBUSGA229K29.043Watch