| Public water system | Population served |
|---|---|
| ATLANTA | 1,089,893 |
| GWINNETT CO. DEPT. OF WATER RESOURCES | 975,000 |
| DEKALB COUNTY | 743,000 |
| COBB COUNTY | 695,000 |
| NORTH FULTON COUNTY | 434,517 |
| CLAYTON COUNTY WATER AUTHORITY | 298,374 |
| COLUMBUS | 229,000 |
| CHEROKEE COUNTY | 224,427 |
| AUGUSTA-RICHMOND CO WS | 204,000 |
| HENRY COUNTY WATER AUTHORITY | 187,437 |
| SAVANNAH-MAIN | 168,958 |
| FORSYTH CO. WATER & SEWER | 161,200 |
| GAINESVILLE | 140,000 |
| MACON WATER AUTHORITY | 130,024 |
| DOUGLASVILLE-DOUGLAS COUNTY WSA | 127,084 |
| ATHENS-CLARKE CO WATER SYSTEM | 125,000 |
| COLUMBIA COUNTY | 124,763 |
| PAULDING COUNTY WATER SYSTEM | 117,468 |
| ALBANY | 101,245 |
| DALTON UTILITIES | 99,315 |
| HOUSTON COUNTY-FEAGIN MILL | 92,971 |
| COWETA WATER & SEWER AUTH. | 92,907 |
| ROCKDALE CO. WATER SYSTEM | 87,156 |
| FAYETTE COUNTY | 86,934 |
| WARNER ROBINS | 83,705 |
| NEWTON CO. WATER-SEWERAGE AUTH | 74,364 |
| BARTOW COUNTY | 70,243 |
| MARIETTA BOARD OF LIGHTS AND WATER | 60,100 |
| CUMMING | 58,661 |
| CATOOSA UTIL. DIST. AUTHORITY | 56,670 |
| CALHOUN | 53,090 |
| CARROLL COUNTY | 51,592 |
| WINDER | 51,540 |
| VALDOSTA | 48,959 |
| NEWNAN UTILITIES | 48,451 |
| FLOYD COUNTY | 46,143 |
| ROME | 45,586 |
| WALTON CO. WATER & SEWER AUTH. | 45,230 |
| BRUNSWICK | 44,739 |
| LAGRANGE | 41,852 |
| SMYRNA | 40,508 |
| SPALDING COUNTY WATER SYSTEM | 40,430 |
| STATESBORO | 36,846 |
| WALKER COUNTY WATER AUTHORITY | 36,000 |
| PERRY | 35,493 |
| EAST POINT | 33,712 |
| JACKSON COUNTY WATER & SEWER AUTHORITY | 33,601 |
| THOMASVILLE | 32,613 |
| HINESVILLE | 32,471 |
| OCONEE COUNTY | 31,323 |
| BUTTS COUNTY/JACKSON/JENKINSBURG WS | 31,171 |
| ST. SIMONS ISLAND | 29,249 |
| TOCCOA | 28,711 |
| POOLER | 28,423 |
| CHATSWORTH | 28,262 |
| TIFTON-TIFT COUNTY WATER SYSTEM | 27,589 |
| USA-FORT STEWART MAIN | 27,573 |
| MONROE | 25,248 |
| KINGSLAND | 25,245 |
| CARROLLTON | 25,200 |
| CARTERSVILLE | 24,830 |
| ETOWAH | 23,922 |
| POLK COUNTY WATER AUTHORITY | 23,792 |
| GRIFFIN | 23,643 |
| BALDWIN COUNTY | 23,067 |
| HARRIS COUNTY WATER SYSTEM | 22,922 |
| USAF-ROBINS AB MAIN | 22,000 |
| THOMSON-MCDUFFIE CO W&S COMM | 21,312 |
| MILLEDGEVILLE | 20,540 |
| BRASELTON | 20,469 |
| COLLEGE PARK | 20,382 |
| GEORGIA SOUTHERN UNIVERSITY | 20,357 |
| LEE COUNTY UTILITIES AUTHORITY | 20,194 |
| WOODSTOCK | 19,742 |
| ST. MARYS | 19,408 |
| UNION CITY | 18,636 |
| GROVETOWN | 18,464 |
| LAFAYETTE | 18,177 |
| DEMOREST | 18,049 |
| BARROW COUNTY WATER SYSTEM | 17,893 |
| MOULTRIE | 17,067 |
| RINCON WATER SYSTEM | 16,654 |
| NOTLA WATER AUTHORITY | 16,518 |
| CANTON | 16,375 |
| SOUTH MONROE COUNTY WATER SYSTEM | 16,292 |
| DADE COUNTY WATER AUTHORITY | 16,285 |
| FORT VALLEY UTILITY COMMISSION | 16,257 |
| MCDONOUGH | 16,187 |
| RICHMOND HILL | 16,068 |
| WAYCROSS | 15,987 |
| VILLA RICA | 15,667 |
| DUBLIN | 15,392 |
| FITZGERALD | 15,382 |
| FAYETTEVILLE | 15,281 |
| BAINBRIDGE | 15,125 |
| AMERICUS | 15,082 |
| CENTERVILLE | 14,701 |
| SAVANNAH-GEORGETOWN/GATEWAY | 14,589 |
| VIDALIA | 14,496 |
| JASPER | 14,435 |
| COVINGTON | 14,391 |
| ROSWELL | 14,300 |
| FAIRBURN | 14,000 |
| DOUGLAS | 13,684 |
| SAVANNAH-WILMINGTON ISLAND | 13,526 |
| JONES COUNTY | 13,373 |
| LOWNDES CO.-NORTH LOWNDES CO. WS | 13,190 |
| ELLIJAY-GILMER CO. WATER AUTH. | 13,010 |
| EATONTON PUTNAM WATER & SEWER AUTH | 12,736 |
| JEFFERSON | 12,690 |
| THOMASTON | 12,482 |
| LOGANVILLE | 12,319 |
| EFFINGHAM COUNTY SURFACE WATER SYSTEM | 12,293 |
| HARALSON COUNTY WATER AUTHORITY | 12,220 |
| CORDELE | 11,880 |
| TOWNS COUNTY | 11,791 |
| COMMERCE | 11,340 |
| PORT WENTWORTH | 11,000 |
| LOCUST GROVE | 10,812 |
| BARNESVILLE | 10,725 |
| SATILLA REGIONAL WATER & SEWER AUTH. | 10,657 |
| SAVANNAH-I & D | 10,500 |
| RABUN COUNTY WATER & SEWER AUTHORITY | 10,276 |
| AUBURN | 10,060 |
| JESUP WATER SYSTEM | 10,055 |
| SUMMERVILLE | 9,993 |
| CEDARTOWN | 9,955 |
| USN-KINGS BAY SUBMARINE BASE | 9,730 |
| BYRON | 9,653 |
| CAIRO | 9,637 |
| SWAINSBORO | 9,536 |
| ADAIRSVILLE | 9,526 |
| GRAY | 9,339 |
| CHATTOOGA COUNTY | 9,190 |
| GARDEN CITY | 9,000 |
| EASTMAN | 8,844 |
| FORSYTH | 8,585 |
| BUFORD | 8,482 |
| FORT OGLETHORPE | 8,313 |
| LOWNDES CO-SOUTH LOWNDES | 8,303 |
| LAVONIA | 8,190 |
| HEARD COUNTY WATER AUTHORITY | 8,172 |
| HARTWELL | 8,129 |
| COCHRAN | 8,114 |
| TYBEE ISLAND | 8,047 |
| MCRAE-HELENA | 7,857 |
| ELBERTON | 7,800 |
| SANDERSVILLE | 7,776 |
| AUSTELL | 7,774 |
| SENOIA | 7,528 |
| DAHLONEGA | 7,500 |
| USA-HUNTER ARMY AIRFIELD - MAIN | 7,500 |
| HAWKINSVILLE | 7,491 |
| HAMPTON | 7,305 |
| STOCKBRIDGE | 7,195 |
| PICKENS COUNTY WATER AUTH. | 7,153 |
| SYLVESTER | 7,076 |
| MCCAYSVILLE | 7,020 |
| HEPHZIBAH | 6,941 |
| HOSCHTON WATER SYSTEM | 6,620 |
| MILLEN | 6,569 |
| WASHINGTON | 6,490 |
| BANKS CO - MOUNTAIN CREEK | 6,453 |
| CAMILLA | 6,428 |
| MADISON | 6,427 |
| WHITE CO WATER & SEWERAGE AUTH | 6,380 |
| BREMEN | 6,200 |
| BOWDON | 6,180 |
| CORNELIA | 6,130 |
| BLUE RIDGE WATER SYSTEM | 6,112 |
| LINCOLN COUNTY WATER SYSTEM | 5,979 |
| ADEL | 5,970 |
| WAYNESBORO | 5,900 |
| MARION COUNTY WATER SYSTEM | 5,875 |
| WEST POINT | 5,800 |
| HAPEVILLE | 5,790 |
| CLARKESVILLE | 5,785 |
| HAZLEHURST WATER SYSTEM | 5,778 |
| BAXLEY | 5,749 |
| CHICKAMAUGA | 5,720 |
| BLAKELY | 5,716 |
| TEMPLE | 5,708 |
| FRANKLIN COUNTY WATER SYSTEM | 5,638 |
| HART CO. WATER & SEWER AUTH. | 5,637 |
| QUITMAN | 5,612 |
| STATHAM | 5,597 |
| CLEVELAND WATERWORKS | 5,587 |
| HIAWASSEE | 5,496 |
| SOCIAL CIRCLE | 5,470 |
| ZEBULON | 5,407 |
| MANCHESTER | 5,397 |
| FOLKSTON | 5,390 |
| USAF-MOODY AIR FORCE BASE-MAIN | 5,325 |
| UPSON COUNTY | 5,243 |
| LOUISVILLE | 5,242 |
| ASHBURN | 5,176 |
| GLENNVILLE WATER SYSTEM | 5,173 |
| SYLVANIA | 4,910 |
| DAWSON | 4,857 |
| METTER | 4,776 |
| DALLAS | 4,770 |
| PALMETTO | 4,718 |
| TALLAPOOSA | 4,680 |
| MADISON COUNTY WATER SYSTEM | 4,663 |
| WALESKA | 4,657 |
| NASHVILLE | 4,631 |
| FLOWERY BRANCH | 4,594 |
| EAST DUBLIN | 4,536 |
| BUTLER | 4,518 |
| LYONS | 4,458 |
| BLACKSHEAR | 4,455 |
| DAWSONVILLE | 4,433 |
| COOSA WATER AUTHORITY | 4,407 |
| ABRAHAM BALDWIN AGRI. COLLEGE | 4,405 |
| HOGANSVILLE | 4,295 |
| CAVE SPRING | 4,248 |
| SAVANNAH-WHITEMARSH ISLAND | 4,247 |
| ROCKMART | 4,199 |
| BALDWIN | 4,160 |
| OGLETHORPE | 4,129 |
| ALMA | 4,096 |
| MONTEZUMA | 4,040 |
| BLAIRSVILLE | 4,035 |
| TALBOT COUNTY WATER WORKS | 4,028 |
| LAKE BLACKSHEAR AREA | 4,018 |
| PELHAM | 4,007 |
| ALAMO | 3,980 |
| WALTHOURVILLE WATER SYSTEM | 3,858 |
| CLAXTON | 3,840 |
| UNADILLA | 3,806 |
| WRIGHTSVILLE | 3,749 |
| SATILLA REGIONAL WATER & SEWER AUTH-EAST | 3,654 |
| LEESBURG | 3,629 |
| HAHIRA | 3,572 |
| NICHOLLS | 3,514 |
| ROBERTA | 3,478 |
| NORTH MONROE WATER SYSTEM | 3,472 |
| LULA | 3,416 |
| WALKER CO. RURAL WATER AUTH. | 3,410 |
| MCINTOSH COUNTY-CRESCENT COMMUNITY WS | 3,406 |
| USMC-LOGISTICS | 3,350 |
| MONTICELLO | 3,329 |
Largest first by population served, as each employer reports it to its federal registry.
Source: U.S. Environmental Protection Agency, Safe Drinking Water Information System (SDWIS/Fed), community water systems. Data captured October 2, 2026.
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