County · Wyoming
Park County, Wyoming: drinking water records
This overview covers 6 ZIP codes and 11 community water systems in Park County. It also stands in for 2 ZIP codes whose utility has too little EPA data for a page of its own.
System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.
Water systems with the most complete records
| Water system | People served | PFAS survey results | PFAS found | Health-based violations | Lead, 9 in 10 homes at or below |
|---|---|---|---|---|---|
| Cody, City of WY5600207 | 10,224 | 120 | 0 | 0 | 0 ppb |
| Northwest Rural Water District WY5601254 | 7,330 | 120 | 0 | 0 | 0 ppb |
| Powell, City of WY5600042 | 6,310 | 120 | 0 | 0 | 2 ppb |
| Jubys Mobile Home Park WY5601496 | 300 | 0 | 0 | 1 | 2 ppb |
| Big Valley & Crossed Arrows Imp Dist WY5601193 | 35 | 0 | 0 | 2 | 1 ppb |
| Ynp-Mammoth Hot Springs WY5680092 | 2,600 | 0 | 0 | 0 | 4 ppb |
| Green Acres Mobile Home Park WY5600238 | 375 | 0 | 0 | 0 | 1 ppb |
| Meeteetse, Town of WY5600035 | 327 | 0 | 0 | 0 | 2 ppb |
| Rivers Bend Trailer Court WY5600212 | 96 | 0 | 0 | 0 | 0 ppb |
| Copperleaf Water System WY5601728 | 42 | 0 | 0 | 0 | 0 ppb |
| Shoshone Municipal Pipeline WY5601198 | 25 | 0 | 0 | 0 | 1 ppb |
ZIP reports in Park County
No ZIP report in this county is published yet.
These ZIP codes are covered by this overview because their utility has too little EPA data for a separate page: 82440, 82450.
Sources and scope
EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Page generated 2026-09-03.
Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.