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
251–275 of 492Slayton
MN1510009 · 1,964 served
Hinckley
MN1580005 · 1,964 served
Lester Prairie
MN1430006 · 1,904 served
Mayer
MN1100006 · 1,900 served
Waterville
MN1400015 · 1,868 served
Rushford
MN1230011 · 1,860 served
Warroad
MN1680006 · 1,857 served
Gilbert
MN1690020 · 1,829 served
Silver Bay
MN1380003 · 1,826 served
Kenyon
MN1250007 · 1,817 served
Braham
MN1300001 · 1,789 served
Moose Lake
MN1090009 · 1,782 served
Osakis
MN1210020 · 1,780 served
Canby
MN1870001 · 1,769 served
Aurora
MN1690002 · 1,764 served
Mapleton
MN1070013 · 1,756 served
Spring Park
MN1270053 · 1,743 served
Long Lake
MN1270018 · 1,729 served
Ada
MN1540001 · 1,725 served
Cologne
MN1100004 · 1,700 served
Lakefield
MN1320004 · 1,694 served
Avon
MN1730002 · 1,667 served
College of St. Benedict
MN1730034 · 1,600 served
Stacy
MN1130016 · 1,593 served
Federal Correctional Institution
MN1580012 · 1,587 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