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
101–125 of 492Baxter
MN1180027 · 9,341 served
Waseca
MN1810004 · 9,241 served
East Grand Forks
MN1600004 · 9,206 served
Little Falls
MN1490002 · 9,069 served
Mahtomedi
MN1820013 · 8,818 served
Thief River Falls
MN1570003 · 8,701 served
Virginia
MN1690046 · 8,361 served
Waite Park
MN1730039 · 8,354 served
New Prague
MN1400013 · 8,247 served
Belle Plaine
MN1700001 · 7,456 served
Isanti
MN1300005 · 7,386 served
Crookston
MN1600002 · 7,272 served
Hermantown
MN1690043 · 7,215 served
Spring Lake Park
MN1020029 · 7,200 served
Saint Joseph
MN1730033 · 7,100 served
North Branch
MN1130011 · 6,863 served
Kasson
MN1200005 · 6,850 served
Stewartville
MN1550026 · 6,850 served
Litchfield
MN1470008 · 6,786 served
Zimmerman
MN1710006 · 6,772 served
Jordan
MN1700003 · 6,700 served
Carver
MN1100017 · 6,700 served
Delano Municipal Utilities
MN1860007 · 6,564 served
Byron
MN1550001 · 6,312 served
Minnetrista
MN1270036 · 5,888 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