State Hub
Minnesota Water Quality
492
Utilities in database
4.6M
Residents served
35%
On private wells
2
Key contaminants tracked
Drinking Water in Minnesota
Minnesota has 492 community water systems serving approximately 4.6 million residents. Primary water sources include groundwater. The most commonly reported contaminants include arsenic, lead. 35% of Minnesota residents rely on private wells. MDH holds primary enforcement authority under the Safe Drinking Water Act.
Utilities in Minnesota
126–150 of 492Red Rock Rural Water System
MN1170009 · 5,840 served
International Falls
MN1360002 · 5,637 served
Glencoe
MN1430003 · 5,607 served
Saint Paul Park
MN1820018 · 5,427 served
Princeton
MN1480008 · 5,421 served
Morris
MN1750005 · 5,351 served
Montevideo
MN1120004 · 5,337 served
Lacrescent
MN1280007 · 5,257 served
Redwood Falls
MN1640008 · 5,254 served
Saint Francis
MN1020028 · 5,200 served
Circle Pines
MN1020013 · 5,075 served
Lake City
MN1790004 · 5,042 served
Becker
MN1710008 · 5,034 served
Elko New Market
MN1700029 · 5,003 served
Luverne
MN1670004 · 4,946 served
Chisholm
MN1690007 · 4,940 served
Lindstrom
MN1130007 · 4,938 served
Dayton
MN1270073 · 4,930 served
Dilworth
MN1140003 · 4,918 served
Rockford
MN1860018 · 4,863 served
Oak Park Heights
MN1820020 · 4,776 served
Windom
MN1170006 · 4,646 served
Saint James
MN1830006 · 4,611 served
Wayzata
MN1270054 · 4,592 served
Sauk Centre
MN1730037 · 4,573 served
Key Contaminant Concerns in Minnesota
Lead
Lead is a naturally occurring heavy metal that was widely used in plumbing infrastructure until it was banned for new installations in 1986. An estimated 9.2 million lead service lines still connect homes to public water mains across the United States, along with millions of homes with lead solder in their internal plumbing.
Arsenic
Arsenic (As) occurs naturally in rock and soil, dissolving into groundwater through natural weathering processes. Inorganic arsenic — the form found in drinking water — is a known human carcinogen. The western United States has particularly arsenic-rich geological formations, but elevated levels have been found in 48 states. Arsenic is tasteless and odorless.
Minnesota Water FAQs
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Data source: Utility data from EPA SDWIS. 492 active community water systems ingested. CCR contaminant data ingestion in progress.
Last updated: 2026-04-19