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
351–375 of 492Houston
MN1280005 · 997 served
Walker
MN1110013 · 990 served
Morristown
MN1660007 · 987 served
Mn Correctional Facility - Moose Lake
MN1090010 · 975 served
Biwabik
MN1690004 · 975 served
Nashwauk
MN1310024 · 971 served
Leroy
MN1500009 · 959 served
Watkins
MN1470010 · 958 served
Baudette
MN1390001 · 947 served
Deer River
MN1310007 · 942 served
Pine River
MN1110019 · 939 served
Battle Lake
MN1560001 · 918 served
Kimball
MN1730015 · 911 served
Morgan
MN1640006 · 896 served
Henderson
MN1720006 · 886 served
Hilltop
MN1020033 · 880 served
Birchwood
MN1820003 · 864 served
Henning
MN1560016 · 851 served
Hallock
MN1350001 · 850 served
Silver Lake
MN1430008 · 850 served
Saint Clair
MN1070017 · 846 served
Hancock
MN1750004 · 845 served
Mazeppa
MN1790009 · 842 served
Clarkfield
MN1870002 · 841 served
Browerville
MN1770002 · 836 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
Quick Links
Data source: Utility data from EPA SDWIS. 492 active community water systems ingested. CCR contaminant data ingestion in progress.
Last updated: 2026-04-19