City Water Quality Rankings in Missouri
335 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#169
Carrollton
County, MO
85 B
#170 Cuba
County, MO
85 B
#171 Dearborn
County, MO
85 B
#172 Fredericktown
County, MO
85 B
#173 Harrisonville
County, MO
85 B
#174 New Madrid
County, MO
85 B
#175 Raymore
County, MO
85 B
#176 Thayer
County, MO
85 B
#177 Branson
County, MO
84 B
#178 Eureka
County, MO
84 B
#179 Fayette
County, MO
84 B
#180 Humansville
County, MO
84 B
#181 Knob Noster
County, MO
84 B
#182 Marshfield
County, MO
84 B
#183 Miner
County, MO
84 B
#184 Smithville
County, MO
84 B
#185 St Charles
County, MO
84 B
#186 Warsaw
County, MO
84 B
#187 Craig
County, MO
83 B
#188 Glasgow
County, MO
83 B
#189 Lathrop
County, MO
83 B
#190 Licking
County, MO
83 B
#191 Perry
County, MO
83 B
#192 Raytown
County, MO
83 B
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.