WaterQ

City Water Quality Rankings in Iowa

270 cities ranked by drinking water quality.

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Popular city water quality comparisons

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Trending Cities

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#193
Gladbrook
County, IA
68 C
#194
Sioux City
County, IA
68 C
#195
Tipton
County, IA
68 C
#196
Waukee
County, IA
68 C
#197
Algona
County, IA
66 C
#198
Mapleton
County, IA
66 C
#199
Rockwell
County, IA
66 C
#200
Buffalo
County, IA
64 C
#201
Cascade
County, IA
64 C
#202
Colfax
County, IA
64 C
#203
Fairfield
County, IA
64 C
#204
Granger
County, IA
64 C
#205
Lake View
County, IA
64 C
#206
Monticello
County, IA
64 C
#207
Story City
County, IA
64 C
#208
Waverly
County, IA
64 C
#209
Tama
County, IA
63 C
#210
Ankeny
County, IA
62 C
#211
Aplington
County, IA
62 C
#212
Bedford
County, IA
62 C
#213
Center Point
County, IA
62 C
#214
Elkader
County, IA
62 C
#215
Ely
County, IA
62 C
#216
Monona
County, IA
62 C

Frequently Asked Questions

How are city water quality rankings calculated in Iowa?

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 Iowa?

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.

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