| The Political Divisions of Georgia |
| County | Formed | Parent County | County Seat |
| Appling | 1818 | 1814 & 1818 ceded lands of the Creek Indians | Baxley |
| Atkinson | 1918 | Clinch, Coffee | Pearson |
| Bacon | 1914 | Appling, Pierce, Ware | Alma |
| Baker | 1825 | Early | Newton |
| Baldwin | 1803 | 1802 & 1805 ceded land of the Creek Indians | Milledgeville |
| Banks | 1858 | Franklin, Habersham | Homer |
| Barrow | 1914 | Jackson, Walton, Gwinnett | Winder |
| Bartow | 1861 | Original Cherokee County (formerly called Cass) | Cartersville |
| Ben Hill | 1906 | Irwin, Wilcox | Fitzgerald |
| Berrien | 1856 | Lowndes, Coffee, Irwin | Nashville |
| Bibb | 1822 | Houston, Jones, Monroe, Twiggs | Macon |
| Bleckley | 1912 | Pulaski | Cochran |
| Brantley | 1920 | Charlton, Pierce, Wayne | Nahunta |
| Brooks | 1858 | Lowndes, Thomas | Quitman |
| Bryan | 1793 | Chatham | Pembroke |
| Bulloch | 1796 | Bryan, Screven | Statesboro |
| Burke | 1777 | St. George Parrish | Waynesboro |
| Butts | 1825 | Henry, Monroe | Jackson |
| Calhoun | 1854 | Baker, Early | Morgan |
| Camden | 1777 | St. Mary, St. Thomas | Woodbine |
| Campbell | 1828 | Coweta, Carroll, DeKalb, Fayette (Merged with Fulton 1 Jan 1932 | (Atlanta) |
| Candler | 1914 | Bullock, Emanuel, Tattnall | Metter |
| Carroll | 1826 | 1826 & 1827 ceded lands of the Creek Indians | Carrollton |
| Cass | 1832 | Originally Cherokee County, Renamed Bartow County on December 8, 1861 | Cartersville |
| Catoosa | 1853 | Walker, Whitfield | Ringgold |
| Charlton | 1854 | Camden | Folkston |
| Chatham | 1777 | St. Philip, Christ Church Parish | Savannah |
| Chattahoochee | 1854 | Marion, Muscogee | Cusseta |
| Chattooga | 1838 | Floyd, Walker | Summerville |
| Cherokee | 1830 | Ceded lands of the Cherokee Indians, not officially ceded until 1835 | Canton |
| Clarke | 1801 | Jackson | Athens |
| Clay | 1854 | Early, Randolph | Fort Gaines |
| Clayton | 1858 | Fayette, Henry | Jonesboro |
| Clinch | 1850 | Ware, Lowndes | Homerville |
| Cobb | 1832 | Original Cherokee County | Marietta |
| Coffee | 1854 | Clinch, Irwin, Ware, Telfair | Douglas |
| Colquitt | 1856 | Lowndes, Thomas | Moultrie |
| Columbia | 1790 | Richmond | Appling |
| Cook | 1918 | Berrien | Adel |
| Coweta | 1825 | 1826 & 1827 ceded lands of the Creek Indians | Newnan |
| Crawford | 1822 | Houston | Knoxville |
| Crisp | 1905 | Dooly | Cordele |
| Dade | 1837 | Walker | Trenton |
| Dawson | 1857 | Lumpkin, Gilmer | Dawsonville |
| Decatur | 1823 | Early | Bainbridge |
| DeKalb | 1822 | Henry, Fayette, Gwinnett | Decatur |
| Dodge | 1870 | Montgomery, Pulaski, Telfair | Eastman |
| Dooly | 1821 | Ceded lands of the Creek Indians | Vienna |
| Dougherty | 1852 | Baker | Albany |
| Douglas | 1870 | Carroll, Campbell | Douglasville |
| Early | 1818 | Ceded lands of the Creek Indians | Blakeley |
| Echols | 1858 | Clinch, Lowndes | Statenville |
| Effingham | 1777 | St. Mathews, St. Phillips Parishes | Springfield |
| Elbert | 1790 | Wilkes | Elberton |
| Emanuel | 1812 | Montgomery, Bullock | Swainsboro |
| Evans | 1914 | Bullock, Tattnall | Claxton |
| Fannin | 1854 | Gilmer, Union | Blue Ridge |
| Fayette | 1821 | Ceded lands of the Creek Indians | Fayetteville |
| Floyd | 1832 | Original Cherokee | Rome |
| Forsyth | 1832 | Original Cherokee | Cumming |
| Franklin | 1784 | Ceded lands of the Cherokee Indians | Carnesville |
| Fulton | 1853 | DeKalb (see also: Campbell & Milton) | Atlanta |
| Gilmer | 1832 | Original Cherokee | Ellijay |
| Glascock | 1857 | Warre | Gibson |
| Glynn | 1777 | St. David, St. Patrick Parishes | Brunswick |
| Gordon | 1850 | Cass, Floyd | Calhoun |
| Grady | 1905 | Decatur, Thomas | Cairo |
| Greene | 1786 | Washington | Greensboro |
| Gwinnett | 1818 | Ceded lands of the Cherokee & Creek Indians | Lawrenceville |
| Habersham | 1818 | Ceded lands of the Cherokee Indians | Clarkesville |
| Hall | 1818 | Ceded lands of theCherokee Indians | Gainesville |
| Hancock | 1793 | Greene, Washington | Sparta |
| Haralson | 1856 | Carroll, Polk | Buchanan |
| Harris | 1827 | Muscogee, Troup | Hamilton |
| Hart | 1853 | Elbert, Franklin | Hartwell |
| Heard | 1830 | Carroll, Coweta, Troup | Franklin |
| Henry | 1821 | Ceded lands of the Creek Indians | McDonough |
| Houston | 1821 | Ceded lands of the Creek Indians | Perry |
| Irwin | 1818 | 1814 & 1818 ceded lands of the Creek Indians | Ocilla |
| Jackson | 1796 | Franklin | Jefferson |
| Jasper | 1812 | Baldwin | Monticello |
| Jeff Davis | 1905 | Appling, Coffee | Hazlehurst |
| Jefferson | 1796 | Burke, Warren | Louisville |
| Jenkins | 1905 | Bullock, Burke, Emanuel, Screven | Millen |
| Johnson | 1858 | Emanuel, Laurens, Washington | Wrightsville |
| Jones | 1807 | Baldwin, Bibb, Putnam | Gray |
| Kinchafoonee | 1853 | Stewart (renamed Webster County on February 21, 1856) | McIntosh - not applicable Historical |
| Lamar | 1920 | Monroe, Pike | Barnesville |
| Lanier | 1920 | Berrien, Lowndes, Clinch | Lakeland |
| Laurens | 1807 | Wilkinson | Dublin |
| Lee | 1826 | Ceded lands of the Creek Indians | Leesburg |
| Liberty | 1777 | St. Andrew, St. James, St. John Parishes | Hinesville |
| Lincoln | 1796 | Wilkes | Lincolnton |
| Long | 1920 | Liberty | Ludowici |
| Lowndes | 1825 | Irwin | Valdosta |
| Lumpkin | 1832 | Cherokee, Habersham, Hall | Dahlonega |
| Macon | 1837 | Houston, Marion | Oglethorpe |
| Madison | 1811 | Clarke, Elbert, Franklin, Jackson, Oglethorpe | Danielsville |
| Marion | 1827 | Lee, Muscogee | Buena Vista |
| McDuffie | 1870 | Columbia, Warren | Thomson |
| McIntosh | 1793 | Liberty | Darien |
| Meriwether | 1827 | Troup | Greenville |
| Miller | 1856 | Baker, Early | Colquitt |
| Milton | 1857 | Cherokee, Cobb, Forsyth (Merged with Fulton, 1932) | not applicable - Historical |
| Mitchell | 1857 | Baker | Camilla |
| Monroe | 1821 | Ceded lands of the Creek Indians | Forsyth |
| Montgomery | 1793 | Washington | Mt. Vernon |
| Morgan | 1807 | Baldwin | Madison |
| Murray | 1832 | Cherokee | Chatsworth |
| Muscogee | 1826 | Ceded lands of the Creek Indians | Columbus |
| Newton | 1821 | Henry, Jasper, Walton | Covington |
| Oconee | 1875 | Clarke | Watkinsville |
| Oglethorpe | 1793 | Wilkes | Lexington |
| Paulding | 1832 | Cherokee | Dallas |
| Peach | 1924 | Houston, Macon | Fort Valley |
| Pickens | 1853 | Cherokee, Gilmer | Jasper |
| Pierce | 1857 | Appling, Ware | Blackshear |
| Pike | 1822 | Monroe | Zebulon |
| Polk | 1851 | Paulding, Floyd | Cedartown |
| Pulaski | 1808 | Laurens | Hawkinsville |
| Putnam | 1807 | Baldwin | Eatonton |
| Quitman | 1858 | Randolph, Stewart | Georgetown |
| Rabun | 1819 | Ceded lands of the Cherokee Indians | Clayton |
| Randolph | 1828 | Lee | Cuthbert |
| Richmond | 1777 | St. Paul Parish | Augusta |
| Rockdale | 1870 | Henry, Newton | Conyers |
| Schley | 1857 | Marion, Sumter | Ellaville |
| Screven | 1793 | Burke, Effingham | Sylvania |
| Seminole | 1920 | Decatur, Early | Donalsonville |
| Spalding | 1851 | Fayett, Henry, Pike | Griffin |
| Stephens | 1905 | Franklin, Habersham | Toccoa |
| Stewart | 1830 | Randolph | Lumpkin |
| Sumter | 1831 | Lee | Americus |
| Talbot | 1827 | Muscogee | Talbotton |
| Taliaferro | 1825 | Green, Hancock, Oglethorpe, Warren, Wilkes | Crawfordville |
| Tattnall | 1801 | Montgomery | Reidsville |
| Taylor | 1852 | Macon, Marion, Talbot | Butler |
| Telfair | 1807 | Wilkinson | McRae |
| Terrell | 1856 | Lee, Randolph | Dawson |
| Thomas | 1825 | Decatur, Irwin | Thomasville |
| Tift | 1905 | Berrien, Irwin, Worth | Tifton |
| Toombs | 1905 | Emanuel, Tattnall, Montgomery | Lyons |
| Towns | 1856 | Rabun, Union | Hiawassee |
| Treutlen | 1917 | Emanuel, Montgomery | Soperton |
| Troup | 1826 | Ceded lands of the Creek Indians | LaGrange |
| Turner | 1905 | Dooly, Irwin, Wilcox, Worth | Ashburn |
| Twiggs | 1809 | Wilkinson | Jeffersonville |
| Union | 1832 | Cherokee | Blairsville |
| Upson | 1824 | Crawford, Pike | Thomaston |
| Walker | 1833 | Murray | LaFayette |
| Walton | 1818 | Creek Indians land | Monroe |
| Walton, Old | 1803-1811 | (currently in NC) | not applicable Historical |
| Ware | 1824 | Appling | Waycross |
| Warren | 1793 | Columbia, Richmond, Wilkes | Warrenton |
| Washington | 1784 | Ceded lands of the Creek Indians | Sandersville |
| Wayne | 1803 | Ceded lands of the Creek Indians | Jesup |
| Webster | 1856 | Stewart (originally called Kinchafoonee) | Preston |
| Wheeler | 1912 | Montgomery | Alamo |
| White | 1857 | Habersham | Cleveland |
| Whitfield | 1851 | Murray | Dalton |
| Wilcox | 1857 | Dooly, Irwin, Pulaski | Abbeville |
| Wilkes | 1777 | Ceded lands of the Cherokee and Creek Indians | Washington |
| Wilkinson | 1803 | Ceded lands of the Creek Indians | Irwinton |
| Worth | 1853 | Dooly, Irwin | Sylvester
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