WaterQ

City Water Quality Rankings in Iowa

268 cities ranked by drinking water quality.

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Popular city water quality comparisons

Asbury, IA vs Brooklyn, IA Compare → Coon Rapids, IA vs Dike, IA Compare → Durant, IA vs Eldora, IA Compare → Hartley, IA vs Iowa Falls, IA Compare →

Trending Cities

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#145
Sloan
County, IA
78 B
#146
Waukon
County, IA
78 B
#147
Baxter
County, IA
77 B
#148
Manning
County, IA
77 B
#149
Missouri Valley
County, IA
77 B
#150
Montezuma
County, IA
77 B
#151
Denver
County, IA
76 B
#152
Des Moines
County, IA
76 B
#153
Huxley
County, IA
76 B
#154
Mason City
County, IA
76 B
#155
North English
County, IA
76 B
#156
Polk City
County, IA
76 B
#157
Traer
County, IA
76 B
#158
Underwood
County, IA
76 B
#159
West Des Moines
County, IA
76 B
#160
Albia
County, IA
74 C
#161
Evansdale
County, IA
74 C
#162
Fort Dodge
County, IA
74 C
#163
Logan
County, IA
74 C
#164
State Center
County, IA
74 C
#165
Tiffin
County, IA
74 C
#166
Van Meter
County, IA
74 C
#167
Britt
County, IA
73 C
#168
Clarinda
County, IA
73 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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