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
476–492 of 492Willernie
MN1820022 · 525 served
Pillager
MN1110030 · 523 served
Lyle
MN1500011 · 521 served
Crown College
MN1100015 · 520 served
Laprairie
MN1310038 · 520 served
Cosmos
MN1470011 · 513 served
Verndale
MN1800003 · 506 served
Brewster
MN1530003 · 506 served
Oronoco Estates Mhc
MN1550008 · 505 served
Lafayette
MN1520002 · 504 served
Rothsay
MN1840006 · 503 served
Brandon
MN1210009 · 501 served
Floodwood
MN1690048 · 501 served
East Bethel
MN1020042 · 500 served
Ulen
MN1140011 · 500 served
Sun Valley Mobile Home Park
MN1270025 · 500 served
Greystone Mhp
MN1020005 · 500 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.
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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