State distribution
Hardness across indexed ZIPs
Counts describe published ZIP profiles, not a population-weighted statewide sample.
State water index
Search 371 indexed communities and 469 ZIP profiles, then compare the underlying utility, source, distance, and reporting context.
Median regional evidence
101PPM
Moderately Hard
Indexed range 2.5–1400 PPM
Understanding Georgia
Georgia moves from the Blue Ridge and Piedmont through the Fall Line into the Coastal Plain. Those regions contain different rocks, aquifers, rivers, and utility source strategies.
In this index, soft is the largest category, covering 165 of 371 profiles with hardness data. The state median is 101 PPM, but the full indexed range is 2.5–1400 PPM.
State distribution
Counts describe published ZIP profiles, not a population-weighted statewide sample.
Evidence coverage
67
Low-confidence hardness profiles
153
Research-comparison eligible profiles
Reported source water
Highest medians
Lowest medians
City directory
Search by city or county, then sort by name, hardness, or ZIP coverage.
371 cities · 469 ZIP profiles
371 cities found
Page 1 of 16
Wilcox County · 1 ZIP
124PPM regional
Bartow County · 1 ZIP
143PPM regional
Cook County · 1 ZIP
144PPM regional
Emanuel County · 1 ZIP
135PPM regional
Wheeler County · 1 ZIP
124PPM regional
Berrien County · 1 ZIP
173PPM regional
Dougherty County · 3 ZIPs
156PPM regional
Bacon County · 1 ZIP
132PPM regional
Fulton County · 2 ZIPs
39PPM regional
Montgomery County · 1 ZIP
101PPM regional
Coffee County · 1 ZIP
117PPM regional
Sumter County · 2 ZIPs
117PPM regional
Sumter County · 1 ZIP
121PPM regional
Crisp County · 1 ZIP
117PPM regional
Clinch County · 1 ZIP
109PPM regional
Calhoun County · 1 ZIP
128PPM regional
Turner County · 1 ZIP
117PPM regional
Fulton County · 23 ZIPs
34PPM regional
Decatur County · 1 ZIP
152PPM regional
Barrow County · 1 ZIP
89PPM regional
Cobb County · 2 ZIPs
35PPM regional
Jefferson County · 1 ZIP
—
Mitchell County · 1 ZIP
158PPM regional
Decatur County · 2 ZIPs
144PPM regional
County comparison
| County | Median | Range | ZIP profiles |
|---|---|---|---|
| Glynn County | 226 PPM | 226–226 | 2 |
| Mcintosh County | 220 PPM | 214–226 | 2 |
| Camden County | 214 PPM | 199.5–238 | 5 |
| Charlton County | 191 PPM | 191–191 | 1 |
| Brantley County | 186 PPM | 186–186 | 1 |
| Berrien County | 173 PPM | 134–173 | 3 |
| Dade County | 170 PPM | 170–170 | 1 |
| Thomas County | 166 PPM | 160–206 | 5 |
| Atkinson County | 161 PPM | 160.5–160.5 | 2 |
| Mitchell County | 158 PPM | 143–160 | 4 |
| Terrell County | 157 PPM | 132–164 | 3 |
| Baker County | 157 PPM | 157–157 | 1 |