City Water Quality Rankings in South Carolina
157 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#97
Westminster
County, SC
92 A
#98 Mcbee
County, SC
91 A
#99 N Myrtle Beach
County, SC
91 A
#100 Scranton
County, SC
91 A
#101 Swansea
County, SC
91 A
#102 West Columbia
County, SC
91 A
#103 Anderson
County, SC
90 A
#104 Belton
County, SC
90 A
#105 Bennettsville
County, SC
90 A
#106 Bethune
County, SC
90 A
#107 Bowman
County, SC
90 A
#108 Darlington
County, SC
90 A
#109 Donalds
County, SC
90 A
#110 Johns Island
County, SC
90 A
#111 Lincolnville
County, SC
90 A
#112 Mount Pleasant
County, SC
90 A
#113 Newberry
County, SC
90 A
#114 Batesburg-Leesville
County, SC
89 B
#115 Fort Mill
County, SC
89 B
#116 Beech Island
County, SC
88 B
#117 Central
County, SC
88 B
#118 Columbia
County, SC
88 B
#119 Iva
County, SC
88 B
#120 Johnsonville
County, SC
88 B
Frequently Asked Questions
How are city water quality rankings calculated in South Carolina?
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 South Carolina?
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.