Water quality for ZIP code 57481
ZIP 57481 covers Long Lake Colony, Grassland Colony, Wetonka, and Westport in Brown County, South Dakota, one of 14 ZIP codes in the county. 22 active public water systems serve the county; 9 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 Brown County
21 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Long Lake Colony Aberdeen, Westport |
107 | 0 | 8.0 mi | |
| Richmond Heights Homeowners Associat Aberdeen |
67 | 0 | 8.4 mi | |
| Westport Sanitary District Aberdeen, Westport |
88 | 1 | 9.0 mi | |
| Country Village Park Aberdeen, Cando |
340 | 0 | 13.1 mi | |
| Frederick Frederick |
215 | 0 | 14.5 mi | |
| Rolling Meadows Aberdeen |
83 | 0 | 14.6 mi | |
| Northwood First Subdivision Aberdeen |
90 | 1 | 15.5 mi | |
| Prairiewood Property Owners Aberdeen |
300 | 0 | 16.6 mi | |
| Aberdeen Aberdeen |
27,989 | 1 | 16.9 mi | |
| Lakeside Estates Aberdeen, Excelsior |
460 | 2 | 17.6 mi | |
| The Meadows Aberdeen |
80 | 2 | 19.3 mi | |
| Jobee Acres Aberdeen |
108 | 5 | 20.5 mi | |
| Green Acres Association Bath |
55 | 0 | 22.0 mi | |
| Warner Warner |
485 | 0 | 25.0 mi | |
| Hecla Hecla |
200 | 1 | 29.7 mi | |
| Stratford Stratford |
57 | 0 | 30.0 mi | |
| Groton Groton |
1,380 | 0 | 31.8 mi | |
| Claremont Britton, Claremont |
108 | 0 | 32.2 mi | |
| Hutterville Colony South Dakota INC Beresford, Stratford |
90 | 1 | 35.9 mi | |
| Brown-Day-Marshall Rws Britton |
5,673 | 0 | 58.5 mi | |
| Pleasant Valley Estates Aberdeen |
105 | 2 | 250.8 mi |
About this data
Water systems are matched to Brown 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 South Dakota 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.