Water quality for ZIP code 59101
ZIP 59101 covers Lockwood, Billings, and Pryor in Yellowstone County, Montana, one of 12 ZIP codes in the county. 118 active public water systems serve the county; 74 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Yellowstone County
53 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| River Grove Estates TR CT Billings |
100 | 1 | 11.8 mi | |
| Billings Heights CO Water Dist of Billings |
12,000 | 3 | 13.2 mi | |
| Duck Creek Mobile Home Park Billings |
70 | 5 | 13.7 mi | |
| Lockwood Water and Sewer District Billings |
5,900 | 0 | 13.7 mi | |
| Crystal Springs Water System Billings |
225 | 2 | 13.9 mi | |
| Billings City of Billings |
114,000 | 0 | 14.3 mi | |
| Golden Meadows Subdivision Billings |
772 | 1 | 14.5 mi | |
| Hillside Village Billings |
650 | 3 | 14.5 mi | |
| Windsor Estates Billings |
530 | 2 | 14.5 mi | |
| Stone Creek Subdivision Billings |
378 | 0 | 14.5 mi | |
| Emerald View Park Billings |
320 | 2 | 14.5 mi | |
| Shiloh Road Development Billings |
315 | 1 | 14.5 mi | |
| Golden Meadows Subdivision 2nd CC Billings |
245 | 1 | 14.5 mi | |
| Saddleback Ridge Estates Billings |
150 | 0 | 14.5 mi | |
| C & C Community INC Billings |
145 | 2 | 14.5 mi | |
| Eastwood Mobile Home Court Billings |
140 | 1 | 14.5 mi | |
| Water Drop LLC Billings |
100 | 1 | 14.5 mi | |
| Peks Mobile Home Court Billings |
95 | 3 | 14.5 mi | |
| Mitchell Court Apartments Billings |
80 | 1 | 14.5 mi | |
| Midway Townhomes Wua Billings |
75 | 1 | 14.5 mi | |
| Ridgeview Subdivision Phase One Billings |
60 | 2 | 14.5 mi | |
| Double Diamond Subdivision Arbor Hills Billings |
50 | 1 | 14.5 mi | |
| Sartorie Legacy Homes Billings |
35 | 1 | 14.5 mi | |
| Silver Creek Condominiums in Yellowstone Billings |
28 | 1 | 14.5 mi | |
| McCann's Water Service LLC Billings |
25 | 1 | 14.5 mi |
Non-community systems in Yellowstone County (64: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Yellowstone 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.