County · Minnesota
Cottonwood County, Minnesota: drinking water records
This overview covers 6 ZIP codes and 9 community water systems in Cottonwood County. It also stands in for 3 ZIP codes whose utility has too little EPA data for a page of its own.
System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.
Water systems with the most complete records
| Water system | People served | PFAS survey results | PFAS found | Health-based violations | Lead, 9 in 10 homes at or below |
|---|---|---|---|---|---|
| Red Rock Rural Water System MN1170009 | 5,840 | 120 | 0 | 0 | 2 ppb |
| Windom MN1170006 | 4,646 | 60 | 0 | 0 | 3 ppb |
| Mountain Lake MN1170003 | 2,018 | 0 | 0 | 0 | 0 ppb |
| Westbrook MN1170005 | 785 | 0 | 0 | 0 | 5 ppb |
| Jeffers MN1170002 | 369 | 0 | 0 | 0 | 0 ppb |
| Storden MN1170004 | 215 | 0 | 0 | 0 | 0 ppb |
| Bingham Lake MN1170008 | 128 | 0 | 0 | 0 | 3 ppb |
| Delft MN1170010 | 58 | 0 | 0 | 0 | 2 ppb |
| Neuhof Hutterian Brethren MN1170011 | 55 | 0 | 0 | 0 | 0 ppb |
ZIP reports in Cottonwood County
No ZIP report in this county is published yet.
These ZIP codes are covered by this overview because their utility has too little EPA data for a separate page: 56101, 56159, 56183.
Sources and scope
EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Page generated 2026-09-03.
Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.