County · Montana
Missoula County, Montana: drinking water records
This overview covers 14 ZIP codes and 82 community water systems in Missoula County. It also stands in for 1 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 |
|---|---|---|---|---|---|
| Missoula Water MT0000294 | 68,200 | 1,380 | 0 | 0 | 22 ppb |
| Phantom Hills Water System MT0004379 | 810 | 60 | 0 | 0 | 2 ppb |
| Goodan Keil Co Water Dist MT0002393 | 207 | 0 | 0 | 1 | 2 ppb |
| High Quality H2o MT0002540 | 200 | 0 | 0 | 3 | 1 ppb |
| Spring Meadows County Water District MT0003630 | 162 | 0 | 0 | 1 | 1 ppb |
| Sunny Meadows Water and Sewer Dist MT0001864 | 135 | 0 | 0 | 1 | 0 ppb |
| Bee Hive Homes Msla MT0004891 | 106 | 0 | 0 | 8 | 1 ppb |
| Big Pines Trailer Court MT0000450 | 78 | 60 | 0 | 0 | 7 ppb |
| River Acres INC MT0000369 | 78 | 0 | 0 | 1 | 0 ppb |
| Tamarack Court MT0000368 | 75 | 0 | 0 | 5 | 2 ppb |
| King Ranch Subdivision MT0004158 | 70 | 0 | 0 | 1 | 0 ppb |
| Missoula Village West Tr Ct MT0003012 | 68 | 0 | 0 | 1 | 11 ppb |
| Greenwood Trailer Court MT0000449 | 53 | 0 | 0 | 1 | 4 ppb |
| Lolo Water and Sewer Dist MT0000278 | 3,315 | 0 | 0 | 0 | 1 ppb |
| Seeley Lake Water District MT0000327 | 1,575 | 0 | 0 | 0 | 4 ppb |
| El Mar Estates Msla Co Water MT0000517 | 1,350 | 0 | 0 | 0 | 1 ppb |
| Westview Mobile Home Park MT0000437 | 947 | 0 | 0 | 0 | 1 ppb |
| Travois Village Mobile Park MT0003909 | 702 | 0 | 0 | 0 | 2 ppb |
| Greenfield Mobile Home Park MT0000373 | 620 | 0 | 0 | 0 | 0 ppb |
| Wye Area Water System MT0004107 | 512 | 0 | 0 | 0 | 1 ppb |
| Grant Creek Water Users Association INC MT0003305 | 380 | 0 | 0 | 0 | 0 ppb |
| Katoonah Lodges MT0003692 | 258 | 0 | 0 | 0 | 3 ppb |
| Sorrel Springs HOA MT0000518 | 250 | 0 | 0 | 0 | 1 ppb |
| Hollywood Heights Trailer Park LLC MT0000454 | 220 | 0 | 0 | 0 | 1 ppb |
| Circle H Water INC MT0004446 | 215 | 0 | 0 | 0 | 1 ppb |
ZIP reports in Missoula 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: 59826.
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.