Georgia Counties
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Georgia Counties

Georgia is divided into one hundred and fifty-nine counties. The original eight counties of the State of Georgia were Burke, Camden, Chatham, Effingham, Glynn, Liberty, Richmond and Wilkes all created on February 5, 1777. The last new county to be established in Georgia was Peach County, established in 1924.

Clayton County, Georgia

Clayton County Education, Geography, and HistoryClayton County, Georgia Courthouse

Clayton County is a county located in the state of Georgia. Based on the 2010 census, the population was 259,424. Clayton County was created on November 30, 1858 from Fayette County and Henry County. The county seat is Jonesboro.
The county is named in honor of Augustin Smith Clayton (1783-1839), a local jurist and US Congressman.

Clayton County is included in the Atlanta-Sandy Springs-Roswell, GA Metropolitan Statistical Area. It is the home of Hartsfield-Jackson Atlanta International Airport.

Etymology - Origin of Clayton County Name

 Clayton county is named for Judge Augustin S. Clayton, who held the county's first sessions of the superior court and later served in both the Georgia House of Representatives and Senate.


County QuickFacts: CensusBureau Quick Facts

Clayton County History

Clayton County was formed in 1858 from parts of Fayette and Henry counties. Georgia's 125th county was named for Judge Augustin S. Clayton, who held the county's first sessions of the superior court and later served in both the Georgia House of Representatives and Senate.

Jonesboro, the county seat, was originally called Leaksville. When the Central Railroad line reached the town, the name was changed to honor Captain Samuel G. Jones, one of the line's surveying engineers.

The Battle of Jonesboro marked the end of the Atlanta Campaign during the Civil War. When Federal troops seized control of the railroad in Jonesboro, all supplies to Atlanta were cut off.

Points of Interest

Hartsfield International Airport, ranked as the world's fourth busiest, is in Clayton County. It is now home to the largest International Concourse in the country. With a job base of 38,000, the airport is the largest employment center in the state.

The Clayton County Water Authority maintains one of the most innovative and successful wastewater treatment systems in the world. Visitors from all over the world come to tour the Clayton County water facilities to learn more about the county's Land Application System. The county uses a natural land application process to purify wastewater while fertilizing acres of forest and producing a marketable pelletized fertilizer.

Geography: Land and Water

As reported by the Census Bureau, the county has a total area of 144 square miles (370 km2), of which 142 square miles (370 km2) is land and 2.8 square miles (7.3 km2) (1.9%) is water.

Clayton county is located in northwest Georgia.   The county is the third-smallest county by area in Georgia. Clayton is in the Flint River basin and the Ocmulgee River basin

Neighboring Counties

Bordering counties are as follows:

  • Northeast: DeKalb County
  • Southeast: Henry County
  • South: Spalding County
  • Southwest: Fayette County
  • Northwest: Fulton County


Higher Education

Clayton College and State University

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