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
76–100 of 492New Ulm
MN1080003 · 14,052 served
Worthington
MN1530011 · 14,052 served
Marshall
MN1420006 · 13,890 served
Sauk Rapids
MN1050004 · 13,835 served
Lincoln-pipestone Rural Water System
MN1410007 · 13,644 served
Waconia
MN1100010 · 13,277 served
Mounds View
MN1620008 · 13,250 served
North Saint Paul
MN1620011 · 13,134 served
Vadnais Heights
MN1620030 · 13,025 served
Cloquet
MN1090005 · 12,864 served
Big Lake
MN1710002 · 12,413 served
Hugo
MN1820007 · 12,047 served
Forest Lake
MN1820005 · 11,800 served
Saint Peter
MN1520006 · 11,784 served
White Bear Township
MN1620025 · 11,699 served
Grand Rapids
MN1310011 · 11,346 served
Lake Elmo
MN1820009 · 10,978 served
Victoria
MN1100009 · 10,546 served
Fairmont
MN1460003 · 10,328 served
Little Canada
MN1620005 · 10,200 served
Detroit Lakes
MN1030005 · 10,038 served
Arden Hills
MN1620001 · 10,000 served
Cambridge
MN1300002 · 9,862 served
Saint Anthony Village
MN1270048 · 9,500 served
Mound
MN1270038 · 9,447 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