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
26–50 of 492Roseville
MN1620013 · 36,254 served
Inver Grove Heights
MN1190014 · 34,189 served
Brooklyn Center
MN1270004 · 33,782 served
Joint Powers Water Board
MN1860024 · 30,922 served
Savage
MN1700008 · 30,285 served
Chaska
MN1100002 · 30,000 served
Oakdale
MN1820016 · 28,674 served
Winona
MN1850013 · 27,782 served
Fridley
MN1020031 · 27,476 served
Rosemount
MN1190019 · 26,500 served
Owatonna
MN1740007 · 26,430 served
Austin Utilities
MN1500002 · 26,174 served
Shoreview
MN1620020 · 26,000 served
White Bear Lake
MN1620024 · 25,634 served
Prior Lake
MN1700007 · 25,282 served
Chanhassen
MN1100001 · 24,951 served
Champlin
MN1270006 · 23,919 served
Faribault
MN1660002 · 23,718 served
Farmington
MN1190008 · 23,534 served
Hastings
MN1190012 · 23,222 served
Golden Valley
MN1270014 · 23,000 served
Crystal
MN1270008 · 22,937 served
New Brighton
MN1620009 · 22,902 served
Columbia Heights
MN1020016 · 22,278 served
Andover
MN1020034 · 21,455 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