Atlanta is the capital and most populous city of the U.S. state of Georgia. With a population of 498,715 living within the city limits, it is the eighth-most populous city in the Southeast and 38th most populous city in the United States according to the 2020 U.S. census. However, it serves as the cultural and economic heart of the much larger Atlanta metropolitan area, home to 6,144,050 people, making it the eighth-largest metropolitan area in the United States. It is the seat of Fulton County, the most populous county in Georgia. Situated among the foothills of the Appalachian Mountains at an elevation of just over 1,000 feet (300 m) above sea level, it features unique topography that includes rolling hills, lush greenery, and the most dense urban tree coverage of any major city in the United States. Wikipedia

Fulton County's county seat is Atlanta, the state capital. Approximately 90% of the City of Atlanta is within Fulton County; the other 10% lies within DeKalb County. Fulton County is part of the Atlanta-Sandy Springs-Roswell, GA Metropolitan Statistical Area. Wikipedia

Cobb County, GA is located in the Atlanta metropolitan area in the north central portion of the state. It's Georgia's third most-populous county. Its county seat and largest city is Marietta. Cobb County is included in the Atlanta-Sandy Springs-Roswell, GA Metropolitan Statistical Area. It is situated immediately to the northwest of Atlanta's city limits. Wikipedia

Decatur County, GA comprises the Bainbridge, GA Micropolitan Statistical Area, which is included in the Tallahassee-Bainbridge, FL-GA Combined Statistical Area. The county seat is Bainbridge. Decatur County comprises the Bainbridge, GA Micropolitan Statistical Area, which is included in the Tallahassee-Bainbridge, FL-GA Combined Statistical Area. Wikipedia

Clayton County, GA is located in the north central portion Georgia. The county seat is Jonesboro. Clayton County is included in the Atlanta metropolitan area, and is the sixth largest county in the state. It is the home of most of Hartsfield-Jackson Atlanta International Airport, the largest airport in the world from 1998-2020.  Wikipedia

Henry County is part of the Atlanta-Sandy Springs-Roswell, GA metropolitan statistical area. It is home to the Atlanta Motor Speedway in Hampton. The Henry County Courthouse is listed on the National Register of Historic Places. In 1995, Henry County was the sixth-fastest-growing county in the United States.

Mercer University has a Regional Academic Center in McDonough. The center, opened in 2003, offers programs through the university's College of Continuing and Professional Studies and Mercer's Tift College of Education. Clayton State University and Gordon College also offer a range of college courses at the Academy for Advanced Studies in McDonough. Wikipedia

Rockdale County was created on October 18, 1870 and received its name from Rockdale Baptist Church (est. 1846), which was named after the granite strata that rests under the county's red clay top soil. A bill introduced by John F. Hardin and John Harris carved Rockdale out of the northern portion of Newton County; parts of Rockdale County also came from neighboring Henry, Walton, Gwinnett, and DeKalb counties. Conyers, Rockdale's only incorporated town and urban center, became the county seat. Wikipedia

Newton county is named after Sgt. John Newton, who served under Gen. Francis Marion, the "Swamp Fox", in the American Revolutionary War. It was created on December 24, 1821.During the American Civil War, the county provided the Lamar Infantry, which was a part of Cobb's Legion. The 1860 census shows the enslaved population was nearly half, 45.2 percent. Newton County adjoins Jasper County: Georgia is one of many states that have a Newton County and a Jasper County that border each other. Wikipedia

DeKalb County is located in the north central portion of the U.S. state of Georgia. As of the 2020 census, the population was 764,382, making it Georgia's fourth-most populous county. Its county seat is Decatur.

DeKalb County is included in the Atlanta-Sandy Springs-Roswell, GA Metropolitan Statistical Area. It contains roughly 10% of the city of Atlanta (the other 90% lies in Fulton County). DeKalb is primarily a suburban county.

In 2009, DeKalb earned the Atlanta Regional Commission's "Green Communities" designation for its efforts in conserving energy, water and fuel, investing in renewable energy, reducing waste, and protecting and restoring natural resources. Wikipedia

Originally, Cherokee County was more like a territory than a county, covering lands northwest of the Chattahoochee River and Chestatee River except for Carroll County. This county was created December 26, 1831, by the state legislature. It was named after the Cherokee people who lived in the area at that time. Several other counties were carved out of these Cherokee lands as part of the Cherokee Land Lottery of 1832. Wikipedia

This county, created by Act of the Legislature October 1, 1870, was named for Stephen A. Douglas, the "Little Giant," a Vermonter who was a Congressman in Illinois from 1843 to '47, Senator from '47 to '61, and Democratic candidate for President in 1860 on the ticket with gov. Herschel V. Johnson, of Georgia, for Vice President. Among the first County Officers were: sheriff T.H. Sellman, Clerk of Superior Court A.L. Gorman, Ordinary Wm. Hindman, Tax Receiver Jno. M. James, Tax Collector M.D. Watkins, Treasurer C.P. Bower, Surveyor John M. Hughey. The county was created from the part of Campbell county which was northwest of the Chattahoochee River. The remainder of Campbell became southwest Fulton at the beginning of 1932. Wikipedia

Fayette County is a county located in the north central portion of the U.S. state of Georgia. As of the 2010 census, the population was 106,567. Fayette County was established in 1821. The county seat, Fayetteville, was established in 1823. Much of Fayette County is bordered on the east side by the Flint River.

Fayette County was organized in 1821 after the United States signed a treaty at Indian Springs, Georgia with the Creek people for cession of a large portion of their land. The county and its seat, Fayetteville, were both named in honor of the French aristocrat the Marquis de Lafayette, who aided General George Washington in the American Revolutionary War. Wikipedia

Forsyth County is a county in the north-central portion of the U.S. state of Georgia. Suburban and exurban in character, Forsyth County lies within the Atlanta Metropolitan Area. The county's only incorporated city and county seat is Cumming. As of 2019 estimates, the population was 244,252. Forsyth was the fastest-growing county in Georgia and the 15th fastest-growing county in the United States between 2010 and 2019. Wikipedia