Wyoming water providers

Find published drinking-water records, providers, and official agency resources for Wyoming. Review sources, sample dates, and coverage.

Official drinking-water resources

• Wyoming Department of Environmental Quality - Water Quality Division - Water & Wastewater Program
• EPA Region 8 Drinking Water Watch

The responsible agency may differ for tribal systems. Record availability and sample dates vary by provider.

Community systems appear first. Sort: Population served · A–Z

Public water systems

770 systems in the imported directory. Includes community systems, schools, workplaces, and other public systems.

• Cheyenne Board of Public UtilitiesWY5600011 · CWS · Population served: 64,165
• City of CasperWY5601415 · CWS · Population served: 59,000
• City of LaramieWY5600029 · CWS · Population served: 32,395
• City of GilletteWY5600019 · CWS · Population served: 32,222
• Town of JacksonWY5600213 · CWS · Population served: 24,760
• City of Rock SpringsWY5601182 · CWS · Population served: 24,000
• City of SheridanWY5600052 · CWS · Population served: 22,700
• City of EvanstonWY5600150 · CWS · Population served: 11,727
• City of Green RiverWY5601181 · CWS · Population served: 10,500
• City of RivertonWY5600047 · CWS · Population served: 10,330
• City of CodyWY5600207 · CWS · Population served: 10,224
• South Cheyenne Water & Sewer DistrictWY5600239 · CWS · Population served: 10,000
• City of Rawlins Water SupplyWY5600045 · CWS · Population served: 9,006
• Ynp-Old FaithfulWY5680085 · CWS · Population served: 7,675
• City of LanderWY5600176 · CWS · Population served: 7,615
• Northwest Rural Water DistrictWY5601254 · CWS · Population served: 7,330
• City of Torrington Municipal Water DeptWY5600164 · CWS · Population served: 6,847
• City of DouglasWY5600137 · CWS · Population served: 6,400
• City of PowellWY5600042 · CWS · Population served: 6,310
• Ynp - Lake VillageWY5680079 · CWS · Population served: 5,925
• Usaf F.E. Warren AfbWY5680122 · CWS · Population served: 5,500
• Worland Utilities CommissionWY5600197 · CWS · Population served: 4,787
• Gtnp-Colter Bay VillageWY5680095 · CWS · Population served: 4,514
• City of BuffaloWY5600005 · CWS · Population served: 4,419
• Arapahoe Comm Water System085690004 · CWS · Population served: 4,100
• City of MillsWY5600036 · CWS · Population served: 4,050
• Town of Bar NunnWY5600067 · CWS · Population served: 4,000
• Town of WheatlandWY5600187 · CWS · Population served: 3,659
• City of NewcastleWY5600256 · CWS · Population served: 3,595
• Kemmerer-Diamondville JpbWY5600028 · CWS · Population served: 3,348
• Wright Water & Sewer DistrictWY5600136 · CWS · Population served: 3,207
• White Mountain W&S DistrictWY5601391 · CWS · Population served: 3,000
• Town of EvansvilleWY5600018 · CWS · Population served: 2,873
• Town of ThermopolisWY5600056 · CWS · Population served: 2,775
• Fort Washakie085690003 · CWS · Population served: 2,620
• Ynp-Mammoth Hot SpringsWY5680092 · CWS · Population served: 2,600
• Town of GlenrockWY5600199 · CWS · Population served: 2,466
• Sleepy Hollow SubdivisionWY5600764 · CWS · Population served: 2,400
• Town of LovellWY5600031 · CWS · Population served: 2,250
• Town of LymanWY5600033 · CWS · Population served: 2,203
• Town of GreybullWY5600022 · CWS · Population served: 2,080
• Town of Star Valley RanchWY5600287 · CWS · Population served: 2,030
• Little America Hotels & Resorts, Inc- WyWY5600097 · CWS · Population served: 2,004
• Afton, Board of Pub UtilitiesWY5600002 · CWS · Population served: 2,000
• Ethete Water System085690002 · CWS · Population served: 1,950
• Leisure Valley Inc/ Star Valley Rv ParkWY5601471 · CWS · Population served: 1,910
• Pinedale Municipal WsWY5600041 · CWS · Population served: 1,900
• Gtnp-Jackson Lake LodgeWY5680103 · CWS · Population served: 1,830
• Town of DuboisWY5600177 · CWS · Population served: 1,822
• Bridger Valley Joint Powers BoardWY5600757 · CWS · Population served: 1,728
• Town of SaratogaWY5600061 · CWS · Population served: 1,720
• Vista West Water CompanyWY5600069 · CWS · Population served: 1,600
• Town of LuskWY5600032 · CWS · Population served: 1,576
• Pioneer Water & Sewer DistrictWY5600828 · CWS · Population served: 1,500
• Rafter J Subdivision HOAWY5600822 · CWS · Population served: 1,500
• Aspens Pines W&S DistrictWY5600220 · CWS · Population served: 1,400
• Town of AlpineWY5600156 · CWS · Population served: 1,300
• Town of RanchesterWY5600044 · CWS · Population served: 1,297
• Antelope Valley I&S District (AVISD)WY5600251 · CWS · Population served: 1,280
• City of SundanceWY5600055 · CWS · Population served: 1,279
• Town of BasinWY5600004 · CWS · Population served: 1,250
• Town of Mountain ViewWY5600847 · CWS · Population served: 1,250
• Bear River Regional Joint PowersWY5601019 · CWS · Population served: 1,200
• Town of Pine BluffsWY5600040 · CWS · Population served: 1,186
• Town of GuernseyWY5600023 · CWS · Population served: 1,157
• Town of UptonWY5600140 · CWS · Population served: 1,100
• Winchester HillsWY5600779 · CWS · Population served: 1,078
• Burns Board of Public UtilitiesWY5600188 · CWS · Population served: 1,024
• Town of MoorcroftWY5600037 · CWS · Population served: 1,009
• Pioneer Mobile Home ParkWY5601173 · CWS · Population served: 1,000
• Washakie Rural Water SystemWY5601523 · CWS · Population served: 990
• Clearview I&S DistrictWY5600091 · CWS · Population served: 930
• Teton Village Water & Sewer DistrictWY5600218 · CWS · Population served: 906
• Melody Ranch Improvement & Service Dist.WY5601440 · CWS · Population served: 900
• South Big Horn County JpbWY5601454 · CWS · Population served: 900
• Town of MarbletonWY5600223 · CWS · Population served: 861
• Fox Park SubdivisionWY5600745 · CWS · Population served: 843
• Town of HannaWY5600025 · CWS · Population served: 841
• Town of DaytonWY5600202 · CWS · Population served: 824
• Town of CowleyWY5600206 · CWS · Population served: 800
• Bedford Water & Sewer DistrictWY5600006 · CWS · Population served: 750
• Heritage Village SubdivisionWY5600249 · CWS · Population served: 750
• Foothills Mobile Home ParkWY5601239 · CWS · Population served: 735
• Greater Smoot W&S DistrictWY5601397 · CWS · Population served: 720
• Skyline Village Mobile Home PkWY5601176 · CWS · Population served: 700
• Eastview Manufactured Home CommunityWY5601353 · CWS · Population served: 688
• Veterans Administration Medical CenterWY5680001 · CWS · Population served: 685
• West WindsWY5601619 · CWS · Population served: 663
• Arapahoe Industrial Park085690008 · CWS · Population served: 650
• Big Country EstatesWY5601271 · CWS · Population served: 615
• Salt Creek Water DistrictWY5600133 · CWS · Population served: 600
• High Meadow RanchWY5601569 · CWS · Population served: 580
• Town of ByronWY5600008 · CWS · Population served: 561
• Jamestown-Rio Vista W&S DistrictWY5600810 · CWS · Population served: 560
• Town of CokevilleWY5600015 · CWS · Population served: 535
• Farson Eden SchoolWY5600113 · CWS · Population served: 530
• Town of ShoshoniWY5600053 · CWS · Population served: 515
• Crestview Estates SubdivisionWY5600853 · CWS · Population served: 500
• Town of WamsutterWY5600105 · CWS · Population served: 500
• Town of Pine HavenWY5600191 · CWS · Population served: 498