Water quality for ZIP code 51004
ZIP 51004 covers Anthon in Woodbury County, Iowa, one of 20 ZIP codes in the county. 32 active public water systems serve the county; 7 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Woodbury County
16 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Oto Water Supply Oto |
72 | 2 | 6.4 mi | |
| Correctionville Water Supply Correctionville |
766 | 0 | 9.8 mi | |
| East Side Acres Moville |
70 | 0 | 10.6 mi | |
| Smithland Water Supply Smithland |
181 | 0 | 10.7 mi | |
| Moville Water Supply Moville |
1,687 | 0 | 11.1 mi | |
| Pierson Water Supply Pierson |
345 | 0 | 12.0 mi | |
| Hornick Water Supply Hornick |
255 | 0 | 13.6 mi | |
| Cushing Water Supply Cushing |
230 | 0 | 13.7 mi | |
| Danbury Water Supply Danbury |
320 | 1 | 13.7 mi | |
| Bronson Water Supply Bronson |
294 | 0 | 15.4 mi | |
| Lawton Water Supply Lawton |
988 | 0 | 15.4 mi | |
| Sloan Water Supply Sloan |
1,042 | 0 | 18.6 mi | |
| Salix Water Supply Salix |
295 | 0 | 19.6 mi | |
| Sergeant Bluff Water Supply Sergeant Bluff |
5,015 | 0 | 22.5 mi | |
| Sioux City Water Supply Sioux City |
85,791 | 1 | 25.6 mi | |
| Berea Heights INC Sioux City |
33 | 0 | 25.6 mi |
Non-community systems in Woodbury County (15: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Little Sioux Park Correctionville |
141 | 0 | 0 | |
|
Salem Lutheran Church Correctionville Correctionville |
35 | 0 | 0 | |
|
Lofted View Events Sioux City |
314 | 2 | 0 | |
|
Whiskey Creek (feedlot) Sioux City |
34 | 0 | 0 | |
|
Browns Lake Bigelow Park Sioux City |
72 | 0 | 0 | |
|
Snyder Bend Pk-Woodbury Consrv Sioux City |
29 | 0 | 0 | |
|
Green Valley Golf Course Sioux City |
180 | 1 | 0 | |
|
Koch Fertilizer LLC Sergeant Bluff |
30 | 0 | 0 | |
|
AG Processing Soy Plant Sergeant Bluff |
110 | 0 | 0 | |
|
AG Processing Refinery Sergeant Bluff |
50 | 1 | 0 | |
|
Midamerican Energy CO Neal South Sioux City |
107 | 0 | 0 | |
|
Midamerican Energy Co. Neal North Sioux City |
100 | 0 | 0 | |
|
Oscar Carl Vineyard Sioux City |
25 | 0 | 0 | |
|
Dorothy Pecaut Nature Center Sioux City |
208 | 0 | 0 | |
|
Stone State Park Sioux City |
150 | 1 | 0 |
About this data
Water systems are matched to Woodbury 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 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.