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Not health advice. Contact your local water utility for concerns.
Data from EPA Water Quality Reports. For official information, contact your water utility or health department.
Compare water quality across 21 counties in Georgia
21 counties ranked by average water quality score
| Rank | County | Avg Score | Grade | Cities | Population | Score Range |
|---|---|---|---|---|---|---|
| 1 | Gwinnett County | 100 | A | 1 | 975,000 | 100 - 100 |
| 2 | Hall County | 100 | A | 1 | 140,000 | 100 - 100 |
| 3 | Bibb County | 100 | A | 1 | 130,024 | 100 - 100 |
| 4 | Douglas County | 100 | A | 1 | 127,084 | 100 - 100 |
| 5 | Houston County | 100 | A | 1 | 83,705 | 100 - 100 |
| 6 | Coweta County | 100 | A | 1 | 48,451 | 100 - 100 |
| 7 | Bulloch County | 100 | A | 1 | 36,846 | 100 - 100 |
| 8 | Liberty County | 100 | A | 1 | 32,471 | 100 - 100 |
| 9 | Carroll County | 97 | A | 1 | 25,200 | 97 - 97 |
| 10 | Cobb County | 96 | A | 2 | 100,608 | 96 - 96 |
| 11 | Henry County | 96 | A | 1 | 7,195 | 96 - 96 |
| 12 | Dougherty County | 88 | B | 1 | 101,245 | 88 - 88 |
| 13 | Chatham County | 84 | B | 2 | 197,381 | 68 - 100 |
| 14 | Fulton County | 81 | B | 5 | 1,591,058 | 54 - 100 |
| 15 | Clarke County | 80 | B | 1 | 125,000 | 80 - 80 |
| 16 | Muscogee County | 74 | C | 1 | 229,000 | 74 - 74 |
| 17 | Richmond County | 74 | C | 1 | 204,000 | 74 - 74 |
| 18 | Whitfield County | 74 | C | 1 | 99,315 | 74 - 74 |
| 19 | Floyd County | 74 | C | 1 | 45,586 | 74 - 74 |
| 20 | Cherokee County | 72 | C | 1 | 19,742 | 72 - 72 |
| 21 | Lowndes County | 33 | F | 1 | 48,959 | 33 - 33 |
1 cities • 975,000 residents
2 cities • 100,608 residents
5 cities • 1,591,058 residents
See all 21 counties in the ranking table above
Our county-level water quality analysis aggregates data from municipal water systems across Georgia. Each county's score represents the average water quality across all analyzed cities within that county, weighted by population served.
With 21 counties and 27 cities analyzed, this data helps residents understand regional water quality patterns in Georgia. County scores range from 33/100 to 100/100, reflecting the diversity of water sources and treatment infrastructure across the state.
Currently, 1 counties in Georgia have average scores below 70, indicating potential water quality concerns. Residents in these areas should review their city's specific report and consider water filtration options.