City Water Quality Rankings in Minnesota
333 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#289
Arlington
County, MN
82 B
#290 Cloquet
County, MN
82 B
#291 Jordan
County, MN
82 B
#292 Morris
County, MN
82 B
#293 Osseo
County, MN
82 B
#294 Sartell
County, MN
82 B
#295 Slayton
County, MN
82 B
#296 South St. Paul
County, MN
82 B
#297 Big Lake
County, MN
80 B
#298 Gaylord
County, MN
80 B
#299 Janesville
County, MN
80 B
#300 Albertville
County, MN
78 B
#301 Cass Lake
County, MN
78 B
#302 Hawley
County, MN
78 B
#303 Preston
County, MN
78 B
#304 Truman
County, MN
78 B
#305 Zimmerman
County, MN
78 B
#306 Dawson
County, MN
77 B
#307 Chisago City
County, MN
76 B
#308 Columbia Heights
County, MN
76 B
#309 Granite Falls
County, MN
76 B
#310 Rosemount
County, MN
76 B
#311 Buhl
County, MN
74 C
#312 Fosston
County, MN
74 C
Frequently Asked Questions
How are city water quality rankings calculated in Minnesota?
WaterQ city rankings are based on EPA SDWIS data across local public water systems, including contaminant detections, compliance violations, and recency-weighted score signals.
Can I compare two cities in Minnesota?
Yes. Use the city comparison links on this page or open the Compare tool to evaluate two cities side by side on score, grade, and water system coverage.
How often does WaterQ refresh city data?
City-level metrics refresh when new EPA data is processed. Check city pages for latest score and violation context.