WaterQ

City Water Quality Rankings in South Carolina

157 cities ranked by drinking water quality.

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Popular city water quality comparisons

Barnwell, SC vs Branchville, SC Compare → Chapin, SC vs Coward, SC Compare → Easley, SC vs Edgefield, SC Compare → Greenwood, SC vs Hartsville, SC Compare →

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#73
Great Falls
County, SC
94 A
#74
Myrtle Beach
County, SC
94 A
#75
Rock Hill
County, SC
94 A
#76
Saint George
County, SC
94 A
#77
Walterboro
County, SC
94 A
#78
Greenville
County, SC
93 A
#79
North
County, SC
93 A
#80
Powdersville
County, SC
93 A
#81
Ridge Spring
County, SC
93 A
#82
Santee
County, SC
93 A
#83
Sumter
County, SC
93 A
#84
Allendale
County, SC
92 A
#85
Bath
County, SC
92 A
#86
Conway
County, SC
92 A
#87
Elloree
County, SC
92 A
#88
Holly Hill
County, SC
92 A
#89
Isle Of Palms
County, SC
92 A
#90
Lamar
County, SC
92 A
#91
Lancaster
County, SC
92 A
#92
Manning
County, SC
92 A
#93
Marietta
County, SC
92 A
#94
Neeses
County, SC
92 A
#95
St Matthews
County, SC
92 A
#96
Walhalla
County, SC
92 A

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.

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