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
276–300 of 492White Township
MN1690001 · 1,559 served
Warren
MN1450012 · 1,551 served
Dawson
MN1370003 · 1,540 served
Rich Prairie Sewer and Water District
MN1490004 · 1,531 served
Lewiston
MN1850006 · 1,512 served
Madison
MN1370004 · 1,511 served
Dassel
MN1470003 · 1,503 served
Dundas
MN1660015 · 1,490 served
Richmond
MN1730022 · 1,485 served
Wheaton
MN1780004 · 1,465 served
Tonka Bay
MN1270013 · 1,442 served
Starbuck
MN1610008 · 1,440 served
Saint Augusta
MN1730063 · 1,425 served
Sandstone
MN1580010 · 1,425 served
Frazee
MN1030014 · 1,400 served
Winnebago
MN1220011 · 1,391 served
Glyndon
MN1140005 · 1,386 served
Fosston
MN1600010 · 1,385 served
Minneota
MN1420007 · 1,380 served
Babbitt
MN1690003 · 1,379 served
Appleton
MN1760001 · 1,376 served
Hayfield
MN1200004 · 1,363 served
Clara City
MN1120001 · 1,360 served
Menahga
MN1800001 · 1,347 served
Grand Marais
MN1160001 · 1,344 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