COUNTY INFORMAITON

DeKalb County, GA

Last Updated July 20, 2025

County Information

DeKalb County, Georgia has 267.7 square miles of land area and is the 113th largest county in Georgia by total area. DeKalb County is made up of a collection of cities, towns, and unincorporated areas, with Atlanta, Brookhaven, Decatur, Dunwoody, and Stone Mountain being some of the most well-known. It is the fourth most populous county in metro Atlanta. DeKalb County is known for its diversity and is home to various landmarks, educational institutions, and major employers.

Basic Facts

Established: December 12, 1822

Population: 757,718 (2021)

Population Increase: 9.4% over the past decate

Racial Breakdown

In 2023, the county's population was approximately 51.5% Black or African American, 30.1% White, 7.9% of two or more races, 6.1% Asian, and smaller percentages for other races. Hispanic or Latino individuals make up around 10% of the population.