Water quality for ZIP code 59457
ZIP 59457 covers Lewistown, Lewistown Heights, King Ranch Colony, Spring Creek Colony, Deerfield Colony, and Warm Spring Creek in Fergus County, Montana, one of 9 ZIP codes in the county. 21 active public water systems serve the county; 18 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Fergus County
10 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Lewistown City of Lewistown |
5,923 | 1 | 7.8 mi | |
| Spring Creek Colony Lewistown Lewistown |
48 | 1 | 7.8 mi | |
| King Ranch Colony Lewistown |
56 | 4 | 9.0 mi | |
| Deerfield Hutterite Colony Lewistown |
51 | 2 | 9.0 mi | |
| Ayers Hutterite Colony Grass Range |
58 | 0 | 14.9 mi | |
| Roy Water and Sewer District Roy |
110 | 2 | 21.3 mi | |
| Moore Town of Moore |
186 | 2 | 21.4 mi | |
| Grass Range Town of Grass Range |
102 | 4 | 25.2 mi | |
| Winifred Town of Winifred |
274 | 7 | 29.1 mi | |
| Denton Town of Denton |
255 | 2 | 32.2 mi |
Non-community systems in Fergus County (10: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Judith Mountain Lodge Unapproved Lewistown |
30 | 2 | 0 | |
|
Judith Shadows Golf Course Lewistown |
25 | 1 | 0 | |
|
HI Heat Industries INC Lewistown |
75 | 2 | 0 | |
|
Pine Meadows Golf Course Elks 456 the Lewistown |
130 | 2 | 0 | |
|
Lehrkinds Big Spring Water Lewistown |
2,575 | 2 | 0 | |
|
The Hideaway Hilger |
26 | 3 | 2 | |
|
Town & Country Lewistown Lewistown |
25 | 0 | 0 | |
|
K-M Scout Ranch Water System Great Falls |
325 | 0 | 0 | |
|
Eddies Corner Moore |
503 | 2 | 0 | |
|
Big Sky Grocery Unapproved Moore |
90 | 1 | 0 |
About this data
Water systems are matched to Fergus 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. Retrieved from ECHO on Oct 11, 2026.