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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#1
Barnwell
County, SC
100 A
#2
Branchville
County, SC
100 A
#3
Chapin
County, SC
100 A
#4
Coward
County, SC
100 A
#5
Easley
County, SC
100 A
#6
Edgefield
County, SC
100 A
#7
Greenwood
County, SC
100 A
#8
Hartsville
County, SC
100 A
#9
Inman
County, SC
100 A
#10
Irmo
County, SC
100 A
#11
Lyman
County, SC
100 A
#12
Monetta
County, SC
100 A
#13
Ninety Six
County, SC
100 A
#14
Norris
County, SC
100 A
#15
Pacolet
County, SC
100 A
#16
Prosperity
County, SC
100 A
#17
Seneca
County, SC
100 A
#18
Silverstreet
County, SC
100 A
#19
Starr
County, SC
100 A
#20
Wallace
County, SC
100 A
#21
Williston
County, SC
100 A
#22
Woodruff
County, SC
100 A
#23
Kiawah Island
County, SC
99 A
#24
Moncks Corner
County, SC
99 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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