Water quality for ZIP code 59521
ZIP 59521 covers Rocky Boy's Agency, St. Pierre, Parker School, Sangrey, Rocky Boy West, and Azure in Hill County, Montana, one of 7 ZIP codes in the county. 17 active public water systems serve the county; 12 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Hill County
9 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Ncmrwa North Havre Cwd Leg Havre |
90 | 2 | 20.1 mi | |
| Bitterroot TP Havre Unapproved Havre |
88 | 0 | 20.1 mi | |
| Hilldale Colony Havre |
79 | 1 | 20.1 mi | |
| Havre City of Havre |
9,921 | 5 | 20.2 mi | |
| Hidden Valley Colony Gildford |
80 | 1 | 25.6 mi | |
| Gildford Colony Gildford |
70 | 0 | 25.7 mi | |
| Hill County Water Districts Havre |
1,720 | 0 | 29.5 mi | |
| North Havre County Water Dist Havre |
90 | 1 | 29.6 mi | |
| Cool Spring Colony Rudyard |
75 | 1 | 34.9 mi |
Non-community systems in Hill County (7: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Box Elder School District 13g Box Elder |
500 | 7 | 0 | |
|
Kiwanis Camp Beaver CR Park Havre |
77 | 1 | 0 | |
|
Beaver Creek Golf Course Havre |
128 | 2 | 0 | |
|
Primo Refill Wal-Mart NO 4247 Havre |
25 | 0 | 0 | |
|
Msu Northern Havre |
1,937 | 1 | 0 | |
|
Aquatana Havre |
25 | 1 | 0 | |
|
Stokes Market Havre Havre |
45 | 1 | 0 |
About this data
Water systems are matched to Hill County, the county this ZIP code lies in, nearest to the ZIP code's centre first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system or, for systems without one, to the centre of the first town EPA lists the system as serving, from Census Bureau place files.
ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA files.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Montana records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet.