Water quality for ZIP code 51521
ZIP 51521 covers Avoca in Pottawattamie County, Iowa, one of 16 ZIP codes in the county. 33 active public water systems serve the county; 16 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 Pottawattamie County
15 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Regional Water Avoca |
4,132 | 0 | 0.4 mi | |
| Urban Bluffs North Council Bluffs |
1,558 | 1 | 1.0 mi | |
| Walnut Municipal Utilities Walnut |
768 | 0 | 6.4 mi | |
| Hancock Water Supply Hancock |
200 | 0 | 6.5 mi | |
| Minden Water Supply Minden |
598 | 0 | 10.2 mi | |
| Oakland Munic Water Utility Oakland |
1,524 | 0 | 12.3 mi | |
| Neola Light & Water Neola |
906 | 3 | 14.3 mi | |
| Carson Water Supply Carson |
766 | 1 | 17.7 mi | |
| Macedonia Water Supply Macedonia |
275 | 0 | 20.7 mi | |
| Treynor Water Department Treynor |
1,049 | 1 | 22.2 mi | |
| Crescent Water Supply Crescent |
778 | 2 | 27.9 mi | |
| Council Bluffs Water Works Council Bluffs |
64,447 | 0 | 30.5 mi | |
| Carter Lake Water District Carter Lake |
3,791 | 2 | 32.5 mi | |
| Lakeside Estates LLC Carter Lake |
823 | 0 | 32.8 mi | |
| Country Estates Mobile Home Park Council Bluffs |
35 | 0 | 34.0 mi |
Non-community systems in Pottawattamie County (17: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Quail Run Country Club Neola |
45 | 2 | 1 | |
|
Creighton University Retreat Center Griswold |
89 | 1 | 0 | |
|
Westfair Council Bluffs |
238 | 3 | 1 | |
|
Living Hope Community Church Council Bluffs |
150 | 0 | 0 | |
|
Aeroplane Inn Honey Creek |
25 | 1 | 1 | |
|
Dot-3 (loveland 060 Scenic View) Loveland |
55 | 0 | 0 | |
|
Mt. Crescent Ski Area Crescent |
128 | 1 | 1 | |
|
Eastern Hills Baptist Church Council Bluffs |
149 | 0 | 0 | |
|
Dot-4 (i-880 RA 024n Loveland) Loveland |
255 | 0 | 0 | |
|
Dot-4 (i-880 RA 023s Loveland) Loveland |
175 | 0 | 0 | |
|
The Learning Journey Council Bluffs |
90 | 2 | 0 | |
|
Town & Country Aqua Club Council Bluffs |
30 | 1 | 0 | |
|
Desoto Bend Mini Mart Missouri Valley |
87 | 0 | 0 | |
|
Lewis and Clark Monument Council Bluffs |
102 | 2 | 1 | |
|
ST Pauls Evangelical Country Church Council Bluffs |
69 | 0 | 0 | |
|
Wabash Greenhouse Council Bluffs |
42 | 1 | 0 | |
|
Hitchcock Nature Center Honey Creek |
32 | 1 | 1 |
About this data
Water systems are matched to Pottawattamie 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 or the centre of the first town EPA lists the system as serving, from Census Bureau county subdivision 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 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.