City Water Quality Rankings in Wisconsin
340 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#265
Spooner
County, WI
81 B
#266 Athens
County, WI
80 B
#267 Combined Locks
County, WI
80 B
#268 Ellsworth
County, WI
80 B
#269 Pardeeville
County, WI
80 B
#270 Peshtigo
County, WI
80 B
#271 Tomahawk
County, WI
80 B
#272 Altoona
County, WI
79 B
#273 Galesville
County, WI
79 B
#274 Jackson
County, WI
79 B
#275 Minocqua
County, WI
79 B
#276 Osceola
County, WI
79 B
#277 River Falls
County, WI
79 B
#278 Amery
County, WI
78 B
#279 Cedarburg
County, WI
78 B
#280 Eagle
County, WI
78 B
#281 Kewaunee
County, WI
78 B
#282 Mayville
County, WI
78 B
#283 Prescott
County, WI
78 B
#284 Somerset
County, WI
78 B
#285 Sun Prairie
County, WI
78 B
#286 Whitehall
County, WI
78 B
#287 Abbotsford
County, WI
77 B
#288 Mineral Point
County, WI
77 B
Frequently Asked Questions
How are city water quality rankings calculated in Wisconsin?
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 Wisconsin?
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.