Water quality in Idaho City, Idaho
Idaho City is in Boise County. 56 active public water systems serve the county; 43 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Boise County
19 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Idaho City Water Dept |
531 | 1 | 5.4 mi | |
| Osprey |
100 | 3 | 8.8 mi | |
| Boise Holcomb Water Users Assoc. INC |
36 | 1 | 9.3 mi | |
| Wilderness Ranch Owners Association INC |
525 | 3 | 12.1 mi | |
| Mores Creek Rim Ranch Water Dist |
140 | 1 | 12.3 mi | |
| Ranch Subd |
65 | 3 | 16.4 mi | |
| Horseshoe Bend Water Supply |
750 | 2 | 18.5 mi | |
| Rivers Point Property Owners Assn |
140 | 0 | 20.6 mi | |
| Mountain Shadows HOA Inc. |
89 | 0 | 21.5 mi | |
| Garden Valley Ranchettes Homeowners |
78 | 1 | 21.7 mi | |
| Mountain View Water and Road Assn |
305 | 3 | 22.2 mi | |
| Terrace Lakes Water Company |
475 | 6 | 23.7 mi | |
| Castle Mountain Creeks Owners Assn |
250 | 2 | 24.2 mi | |
| Scenic Properties Water Assn INC |
40 | 1 | 29.0 mi | |
| Scriver Woods Homeowners Assn |
160 | 0 | — | |
| Valley HI Estates |
140 | 1 | — | |
| Horseshu Vue Ranch Subd |
51 | 3 | — | |
| Shilo Ranch Estates |
44 | 1 | — | |
| Southfork Landing INC |
25 | 1 | — |
Non-community systems in Boise County (36: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Boise County, nearest to Idaho City 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.
Town locations and ZIP code areas come from U.S. Census Bureau 2020 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 Idaho 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.