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Browse Water Systems

1,850 public water systems in WY.

Public Water Systems Database

Browse 1,850 EPA-regulated public water systems with identifiers, population served, and water source type. Use the filters below to narrow results by state, system type, or name.

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System Name PWSID State Type Population Served
CHEYENNE BOARD OF PUBLIC UTILITIES WY5600011 Wyoming Community 64,165
CASPER, CITY OF WY5601415 Wyoming Community 59,000
LARAMIE, CITY OF WY5600029 Wyoming Community 32,395
GILLETTE, CITY OF WY5600019 Wyoming Community 32,222
JACKSON, TOWN OF WY5600213 Wyoming Community 24,760
ROCK SPRINGS, CITY OF WY5601182 Wyoming Community 24,000
SHERIDAN, CITY OF WY5600052 Wyoming Community 22,700
FORT BRIDGER MUSEUM WY5600650 Wyoming Transient Non-Community 15,000
HILLCREST WATER COMPANY WY5600548 Wyoming Transient Non-Community 15,000
EVANSTON, CITY OF WY5600150 Wyoming Community 12,000
GREEN RIVER, CITY OF WY5601181 Wyoming Community 10,500
RIVERTON, CITY OF WY5600047 Wyoming Community 10,330
CODY, CITY OF WY5600207 Wyoming Community 10,224
SOUTH CHEYENNE WATER & SEWER DISTRICT WY5600239 Wyoming Community 10,000
RAWLINS WATER SUPPLY, CITY OF WY5600045 Wyoming Community 9,006
YNP-OLD FAITHFUL WY5680085 Wyoming Community 7,675
LANDER, CITY OF WY5600176 Wyoming Community 7,615
NORTHWEST RURAL WATER DISTRICT WY5601254 Wyoming Community 7,330
TORRINGTON MUNICIPAL WATER DEPT, CITY OF WY5600164 Wyoming Community 6,847
DOUGLAS, CITY OF WY5600137 Wyoming Community 6,400
POWELL, CITY OF WY5600042 Wyoming Community 6,310
YNP - LAKE VILLAGE WY5680079 Wyoming Community 5,925
USAF F.E. WARREN AFB WY5680122 Wyoming Community 5,500
WORLAND UTILITIES COMMISSION WY5600197 Wyoming Community 5,487
GTNP-COLTER BAY VILLAGE WY5680095 Wyoming Community 4,514
BUFFALO, CITY OF WY5600005 Wyoming Community 4,419
YNP-CANYON VILLAGE WY5680074 Wyoming Non-Transient Non-Community 4,300
MILLS-WARDWELL JPB WY5600841 Wyoming Community 4,150
MILLS, CITY OF WY5600036 Wyoming Community 4,050
BAR NUNN, TOWN OF WY5600067 Wyoming Community 4,000
BROOKS WATER & SEWER DISTRICT WY5600070 Wyoming Community 4,000
WHEATLAND, TOWN OF WY5600187 Wyoming Community 3,659
NEWCASTLE, CITY OF WY5600256 Wyoming Community 3,595
FORT WASHAKIE 085690003 Wyoming Community 3,520
YNP-GRANT VILLAGE WY5680077 Wyoming Transient Non-Community 3,513
KEMMERER-DIAMONDVILLE JPB WY5600028 Wyoming Community 3,348
GREYBULL, TOWN OF WY5600022 Wyoming Community 3,260
ARAPAHOE COMM WATER SYSTEM 085690004 Wyoming Community 3,100
DEVILS TOWER NATIONAL MONUMENT WY5680114 Wyoming Transient Non-Community 3,071
PARADISE VALLEY UTIL CO WY5600010 Wyoming Community 3,000
NORDIC STATION WY5600618 Wyoming Transient Non-Community 3,000
WHITE MOUNTAIN W&S DISTRICT WY5601391 Wyoming Community 3,000
THERMOPOLIS, TOWN OF WY5600056 Wyoming Community 2,775
EVANSVILLE, TOWN OF WY5600018 Wyoming Community 2,728
YNP-MAMMOTH HOT SPRINGS WY5680092 Wyoming Community 2,600
GRAND TARGHEE RESORT WY5601201 Wyoming Non-Transient Non-Community 2,500
WRIGHT WATER & SEWER DISTRICT WY5600136 Wyoming Community 2,500
GLENROCK, TOWN OF WY5600199 Wyoming Community 2,466
SLEEPY HOLLOW SUBDIVISION WY5600764 Wyoming Community 2,400
LOVELL, TOWN OF WY5600031 Wyoming Community 2,360