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
201–225 of 492Granite Falls
MN1870004 · 2,843 served
Caledonia
MN1280002 · 2,824 served
Albany
MN1730001 · 2,805 served
Cokato
MN1860006 · 2,792 served
Barnesville
MN1140001 · 2,784 served
Kittson Marshall Water
MN1350006 · 2,752 served
Lexington
MN1020032 · 2,738 served
Roseau
MN1680003 · 2,729 served
Foley
MN1050001 · 2,711 served
Glenwood
MN1610003 · 2,705 served
Bayport
MN1820001 · 2,700 served
Osseo
MN1270042 · 2,650 served
Spring Valley
MN1230012 · 2,580 served
Pelican Rapids
MN1560019 · 2,577 served
Lake Crystal
MN1070006 · 2,554 served
Le Center
MN1400008 · 2,544 served
Paynesville
MN1730018 · 2,530 served
Wabasha
MN1790013 · 2,521 served
Saint John's University
MN1730009 · 2,500 served
Carleton College
MN1660013 · 2,485 served
Excelsior
MN1270012 · 2,483 served
Cimarron Park
MN1820010 · 2,400 served
Crosby
MN1180008 · 2,377 served
Saint Bonifacius
MN1270049 · 2,374 served
Olivia
MN1650011 · 2,353 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