Water quality for ZIP code 51566
ZIP 51566 covers Red Oak and Coburg in Montgomery County, Iowa, one of 6 ZIP codes in the county. 5 active public water systems serve the county; 2 had an EPA violation in the past three years.
Most likely your provider
Your location is within the outer bounds of this system's EPA service area.
Other community water systems in Montgomery County
3 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Southwest Reg Water District (red Oak) Red Oak |
3,500 | 1 | 7.1 mi | |
| Elliott Water Supply Elliott |
345 | 0 | 9.9 mi | |
| Villisca Municipal Water Dept Villisca |
1,132 | 0 | 14.3 mi |
Non-community systems in Montgomery County (1: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Stanton Water Supply Stanton |
683 | 0 | 0 |
About this data
Water systems are matched to Montgomery 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.
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 Iowa 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.