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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
376–400 of 492Onamia
MN1480003 · 831 served
Lamberton
MN1640003 · 828 served
Blackduck
MN1040014 · 826 served
Walnut Grove
MN1640014 · 825 served
Bovey
MN1310003 · 821 served
Isle
MN1480001 · 820 served
Kerkhoven
MN1760006 · 806 served
Flamingo Terrace Mobile Home Park
MN1020002 · 804 served
Dover
MN1550004 · 792 served
Gibbon
MN1720004 · 790 served
Fertile
MN1600008 · 789 served
Westbrook
MN1170005 · 785 served
Mn Correctional Facility - Stillwater
MN1820002 · 781 served
West Concord
MN1200007 · 773 served
Claremont
MN1200001 · 773 served
Holdingford
MN1730014 · 770 served
Raymond
MN1340008 · 765 served
Rockville
MN1730026 · 765 served
Bel Clare Estates
MN1730030 · 750 served
Belgrade
MN1730004 · 745 served
Sebeka
MN1800002 · 742 served
Wabasso
MN1640013 · 735 served
Trimont
MN1460009 · 734 served
Lanesboro
MN1230006 · 727 served
Brownton
MN1430002 · 722 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