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
426–450 of 492Rollingstone
MN1850008 · 664 served
Elmore
MN1220004 · 663 served
Clarissa
MN1770003 · 662 served
Alden
MN1240004 · 661 served
Elysian
MN1400003 · 656 served
Welcome
MN1460011 · 653 served
Restwood Terrace
MN1020024 · 650 served
Hendricks
MN1410001 · 650 served
Randall
MN1490005 · 650 served
Brooten
MN1730005 · 646 served
Taconite
MN1310028 · 644 served
Balaton
MN1420001 · 639 served
Loretto
MN1270019 · 637 served
Ellendale
MN1740003 · 636 served
Grove City
MN1470007 · 635 served
Courtland
MN1520001 · 635 served
Hill City
MN1010011 · 633 served
Sabin
MN1140010 · 629 served
Oak Grove
MN1020044 · 623 served
Jasper
MN1590004 · 623 served
Barnum
MN1090001 · 621 served
Evansville
MN1210013 · 603 served
Green Isle
MN1720005 · 599 served
Butterfield
MN1830001 · 586 served
Mcintosh
MN1600011 · 584 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