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State water index

Georgia water hardness

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

ZIP profiles
469
Cities
371
Matched utilities
685
Counties
150

Understanding Georgia

Why local comparisons matter here

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

Hardness across indexed ZIPs

Counts describe published ZIP profiles, not a population-weighted statewide sample.

Soft · 0–60 PPM165
Moderately hard · 61–120 PPM68
Hard · 121–180 PPM123
Very hard · 181+ PPM15

Evidence coverage

What the current records support

Hardness estimate
79%
Lead 90th percentile
100%
Copper 90th percentile
14%

67

Low-confidence hardness profiles

153

Research-comparison eligible profiles

Reported source water

Utility source mix

Groundwater
525
Surface water
158
Groundwater influenced by surface water
2

City directory

Explore Georgia by city

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

Abbeville

Wilcox County · 1 ZIP

124PPM regional

Single regional valueNo active flag

Adairsville

Bartow County · 1 ZIP

143PPM regional

Single regional valueNo active flag

Adel

Cook County · 1 ZIP

144PPM regional

Single regional valueNo active flag

Adrian

Emanuel County · 1 ZIP

135PPM regional

Single regional valueNo active flag

Alamo

Wheeler County · 1 ZIP

124PPM regional

Single regional valueNo active flag

Alapaha

Berrien County · 1 ZIP

173PPM regional

Single regional valueNo active flag

Albany

Dougherty County · 3 ZIPs

156PPM regional

Regional range 155.5–157No active flag

Alma

Bacon County · 1 ZIP

132PPM regional

Single regional valueNo active flag

Alpharetta

Fulton County · 2 ZIPs

39PPM regional

Regional range 39–39.1No active flag

Alston

Montgomery County · 1 ZIP

101PPM regional

Single regional valueNo active flag

Ambrose

Coffee County · 1 ZIP

117PPM regional

Single regional valueNo active flag

Americus

Sumter County · 2 ZIPs

117PPM regional

Single regional valueNo active flag

Andersonville

Sumter County · 1 ZIP

121PPM regional

Single regional valueNo active flag

Arabi

Crisp County · 1 ZIP

117PPM regional

Single regional valueNo active flag

Argyle

Clinch County · 1 ZIP

109PPM regional

Single regional valueNo active flag

Arlington

Calhoun County · 1 ZIP

128PPM regional

Single regional valueNo active flag

Ashburn

Turner County · 1 ZIP

117PPM regional

Single regional valueNo active flag

Atlanta

Fulton County · 23 ZIPs

34PPM regional

Regional range 28.4–39No active flag

Attapulgus

Decatur County · 1 ZIP

152PPM regional

Single regional valueNo active flag

Auburn

Barrow County · 1 ZIP

89PPM regional

Single regional valueNo active flag

Austell

Cobb County · 2 ZIPs

35PPM regional

Single regional valueNo active flag

Avera

Jefferson County · 1 ZIP

—

No regional sampleNo active flag

Baconton

Mitchell County · 1 ZIP

158PPM regional

Single regional valueNo active flag

Bainbridge

Decatur County · 2 ZIPs

144PPM regional

Regional range 139.5–149No active flag

County comparison

Highest regional-evidence county medians

Regional hardness summaries by county in Georgia
CountyMedianRangeZIP profiles
Glynn County226 PPM226–2262
Mcintosh County220 PPM214–2262
Camden County214 PPM199.5–2385
Charlton County191 PPM191–1911
Brantley County186 PPM186–1861
Berrien County173 PPM134–1733
Dade County170 PPM170–1701
Thomas County166 PPM160–2065
Atkinson County161 PPM160.5–160.52
Mitchell County158 PPM143–1604
Terrell County157 PPM132–1643
Baker County157 PPM157–1571