City Water Quality Rankings in Missouri
335 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#289
El Dorando Springs
County, MO
66 C
#290 Richland
County, MO
66 C
#291 Saint Robert
County, MO
66 C
#292 Lamar
County, MO
65 C
#293 Unity Village
County, MO
65 C
#294 Anniston
County, MO
64 C
#295 Laquey
County, MO
64 C
#296 Reeds Spring
County, MO
64 C
#297 Versailles
County, MO
64 C
#298 Liberty
County, MO
63 C
#299 Pacific
County, MO
63 C
#300 Seneca
County, MO
63 C
#301 Concordia
County, MO
62 C
#302 Crane
County, MO
62 C
#303 East Prairie
County, MO
62 C
#304 Sarcoxie
County, MO
62 C
#305 Montrose
County, MO
61 C
#306 St Louis
County, MO
61 C
#307 Cape Girardeau
County, MO
58 D
#308 Hannibal
County, MO
58 D
#309 Sparta
County, MO
57 D
#310 Neosho
County, MO
56 D
#311 Potosi
County, MO
55 D
#312 Campbell
County, MO
54 D
Frequently Asked Questions
How are city water quality rankings calculated in Missouri?
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 Missouri?
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.