DeKalb County (/dəˈkæb/ də-KAB, /diːˈ-/ dee-) 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 metropolitan area. It contains roughly 10% of the city of Atlanta (the other 90% lies in Fulton County). Stonecrest is the largest city that is entirely within the county. DeKalb is primarily a suburban county.
Atlanta is the capital and most populous city of the U.S. state of Georgia. It is the county seat of Fulton County and extends into neighboring DeKalb County. With a population of 498,715 at the 2020 census and an estimated 520,070 in 2024, Atlanta is the eighth-most populous city in the Southeast and the 36th-most populous city in the United States. Atlanta is classified as a Beta+ global city. The Atlanta metropolitan area has an estimated population of over 6.4 million and is the eighth-largest metropolitan area in the United States. Situated among the foothills of the Appalachian Mountains at an elevation of just over 1,000 feet (300 m) above sea level, Atlanta features a unique topography that includes rolling hills, lush greenery, and the densest urban tree coverage of any major city in the United States.
Atlanta was originally founded as the terminus of a major state-sponsored railroad, but soon became the convergence point for several railroad lines, spurring its rapid growth. The largest of these was the Western and Atlantic Railroad, from which the name "Atlanta" is derived, reflecting the city's growing reputation as a major transportation hub. During the American Civil War, the city served a strategically important role for the Confederacy until it was captured in 1864. Atlanta was almost entirely burned to the ground during General William T. Sherman's March to the Sea. However, it rebounded dramatically in the post-war period and quickly became a national industrial center and the unofficial capital of the "New South". After World War II, Atlanta emerged as a manufacturing and technology hub. During the 1950s and 1960s, it became a major organizing center of the American civil rights movement, with Martin Luther King Jr., Ralph Abernathy, and many other locals serving as prominent leaders. In the modern era, Atlanta has remained a major transportation center, with Hartsfield-Jackson International Airport becoming the world's busiest airport by passenger traffic in 1998. It has maintained this position every year since, except in 2020, with an estimated 93.7 million passengers in 2022.
A Census County Division (CCD) is a subdivision of a county used by the United States Census Bureau for the purpose of presenting statistical data. A CCD is a relatively permanent statistical area delineated cooperatively by the Census Bureau and state and local government authorities. CCDs are defined in 21 states that do not have well-defined and stable minor civil divisions (MCDs), such as townships, with local governmental purposes, or where the MCDs are deemed to be "unsatisfactory for the collection, presentation, and analysis of census statistics".
CCDs are non-governmental units and have no legal or governmental functions. Their boundaries usually follow visible features, such as roads, railroads, streams, power transmission lines, or mountain ridges, and coincide with the boundaries of census tracts. CCDs do not span county lines. Each CCD is given a name based on the name of the largest population center in the area, a prominent geographic feature, the county name, or another well-known local name that identifies its location.
Fernbank Museum of Natural History, in Atlanta, Georgia, is a museum that presents exhibitions and programming about natural history. The museum has a number of permanent exhibitions and regularly hosts temporary exhibitions in its expansive facility, designed by Graham Gund Architects. Giants of the Mesozoic, on display in the atrium of Fernbank Museum, features a 123-foot (37 m) long Argentinosaurus, the largest dinosaur ever classified; as well as a Giganotosaurus. The permanent exhibition, A Walk Through Time in Georgia, tells the twofold story of Georgia's natural history and the development of the planet. Fernbank Museum has won several national and international awards for one of its newest permanent exhibitions, Fernbank NatureQuest, an immersive, interactive exhibition for children that was designed and produced by Thinkwell Group. The awards NatureQuest has won include the 2012 Thea Award for Outstanding Achievement for a Museum Exhibit and the 2011 Bronze Award for Best Museum Environment from Event Design. The nearby Fernbank Science Center is a separate organization operated by the DeKalb County Board of Education and is not affiliated with Fernbank Museum of Natural History (Fernbank, Inc.).
Metro Atlanta, designated by the United States Office of Management and Budget as the Atlanta–Sandy Springs–Roswell metropolitan statistical area, is the most populous metropolitan statistical area in the U.S. state of Georgia and the eighth-largest in the United States, based on the July 1, 2024 population estimates from the U.S. Census Bureau. Its economic, cultural, and demographic center is Atlanta, and its total population was 6,411,149 in the 2024 estimate from the U.S. Census Bureau.
The core 5 counties of metropolitan Atlanta are Fulton, Gwinnett, Cobb, DeKalb, and Clayton, with over 60% of the metro area’s population residing in these counties. The metro area forms the core of a broader trading area, the Atlanta–Athens-Clarke County–Sandy Springs combined statistical area. The combined statistical area spans up to 39 counties in North Georgia. The CSA recorded in the 2020 U.S. census a population of 6,930,423. One in ten (10.7%) of residents served by the Atlanta Regional Commission (including the core 5 counties of the metropolitan area) live within Atlanta city limits.
Fulton County is in the north-central portion of the U.S. state of Georgia. As of the 2020 United States census, the population was 1,066,710, making it the state's most populous county. Its county seat and most populous city is Atlanta, the state capital. About 90% of the city of Atlanta is within Fulton County; the remaining portion is in DeKalb County. Fulton County is the principal county of the Atlanta–Sandy Springs–Roswell metropolitan statistical area.
Metro Atlanta, designated by the United States Office of Management and Budget as the Atlanta–Sandy Springs–Roswell metropolitan statistical area, is the most populous metropolitan statistical area in the U.S. state of Georgia and the eighth-largest in the United States, based on the July 1, 2024 population estimates from the U.S. Census Bureau. Its economic, cultural, and demographic center is Atlanta, and its total population was 6,411,149 in the 2024 estimate from the U.S. Census Bureau.
The core 5 counties of metropolitan Atlanta are Fulton, Gwinnett, Cobb, DeKalb, and Clayton, with over 60% of the metro area’s population residing in these counties. The metro area forms the core of a broader trading area, the Atlanta–Athens–Clarke County–Sandy Springs combined statistical area. The combined statistical area spans up to 39 counties in North Georgia. The CSA recorded in the 2020 U.S. census a population of 6,930,423. One in ten (10.7%) of residents served by the Atlanta Regional Commission (including the core 5 counties of the metropolitan area) live within Atlanta city limits.
Decatur (/dəˈkeɪtər/) is a city in and the county seat of DeKalb County, Georgia, United States, part of the Atlanta metropolitan area. With a population of 24,928 in the 2020 census, the municipality is sometimes assumed to be larger since multiple ZIP Codes in unincorporated DeKalb County bear Decatur as the address.
The city is served by three MARTA rail stations (Decatur, East Lake, and Avondale). The city is located approximately five miles (eight kilometers) northeast of Downtown Atlanta and shares its western border with both the city of Atlanta (the Kirkwood and Lake Claire neighborhoods) and unincorporated DeKalb County. The Druid Hills neighborhood is to the northwest of Decatur.