Founded as a British colony in 1733, Georgia was one of the original 13 colonies. It played a major role in both the American Revolution and the Civil War. Georgia has 159 counties, the second most of any state.
10 Largest Counties in Georgia
1. Fulton County
County Facts
- Population: 1,066,710 (2020 Census)
- Area Codes: 404, 470, 678, 770
- ZIP Codes: 30002-30390
- County Seat: Atlanta
Geography and History
Fulton County, located in north-central Georgia, spans 534 square miles and is the most populous county in the state. It encompasses much of the Atlanta metropolitan area, including the city of Atlanta. Fulton County was created in 1853 from parts of DeKalb County and was named after Robert Fulton, the inventor of the steamboat. The county’s growth skyrocketed after the Civil War, with Atlanta becoming the transportation and economic hub of the Southeast. Today, Fulton County is a major center for business, technology, and culture, driven largely by its capital city, Atlanta. The county’s geography includes the foothills of the Appalachian Mountains to the north and rolling plains to the south.
Colleges and Universities
- Georgia Institute of Technology (Georgia Tech): One of the top public research universities in the U.S., known for its engineering and technology programs.
- Georgia State University: A large public research university offering a wide range of programs, including law, business, and the arts.
- Morehouse College: A private historically Black college for men, focusing on liberal arts and leadership.
- Spelman College: A private historically Black liberal arts college for women, known for its strong academic programs and social leadership.
Major Landmarks
Fulton County is home to numerous landmarks, including The Georgia Aquarium, one of the largest aquariums in the world, and the World of Coca-Cola, which celebrates the history of the iconic beverage. Centennial Olympic Park was built for the 1996 Olympic Games and remains a central gathering spot. The Martin Luther King Jr. National Historical Park honors the civil rights leader’s legacy. The Fox Theatre is a historic performance venue, while Piedmont Park offers a vast green space for recreation. Mercedes-Benz Stadium hosts the Atlanta Falcons and major concerts, and the High Museum of Art is a leading art museum in the Southeast.
2. Gwinnett County
County Facts
- Population: 957,062 (2020 Census)
- Area Codes: 678, 770, 404
- ZIP Codes: 30003-30099
- County Seat: Lawrenceville
Geography and History
Gwinnett County is located in the northern part of the Atlanta metropolitan area, covering 437 square miles. The county was founded in 1818 and named after Button Gwinnett, one of Georgia’s signers of the Declaration of Independence. Historically, Gwinnett was an agricultural region, but with the expansion of Atlanta, the county became one of the fastest-growing suburban areas in the state. It features a mix of suburban development, natural parks, and vibrant communities. The county’s economy has diversified from its agrarian roots to include technology, retail, and professional services, making it a major contributor to Georgia’s economy.
Colleges and Universities
- Georgia Gwinnett College: A public liberal arts college offering bachelor’s degrees in a variety of disciplines, including business, education, and information technology.
- Gwinnett Technical College: A two-year institution providing career training in fields like health care, business, and technology.
- University of Georgia (Gwinnett Campus): A graduate-level campus offering programs in education, business, and public administration.
Major Landmarks
Gwinnett County offers several notable landmarks, including Infinite Energy Center, a large entertainment and conference venue. Coolray Field is home to the Gwinnett Stripers, a minor league baseball team. Stone Mountain Park, just outside the county line, is a major attraction with hiking trails, a scenic mountain, and historical exhibits. Tribble Mill Park offers outdoor activities such as hiking, fishing, and picnicking, while BAPS Shri Swaminarayan Mandir, a stunning Hindu temple, attracts visitors for its intricate architecture. Suwanee Town Center is a vibrant community hub with events, shops, and restaurants.
3. Cobb County
County Facts
- Population: 766,149 (2020 Census)
- Area Codes: 770, 678, 404
- ZIP Codes: 30006-30168
- County Seat: Marietta
Geography and History
Cobb County is located in northwestern Georgia, just outside Atlanta, and covers 345 square miles. Established in 1832, the county was named after U.S. Senator Thomas W. Cobb. It played a significant role in Georgia’s development during the 19th century, particularly during the Civil War, when Marietta became a major strategic site. In the 20th century, Cobb County transitioned from an agricultural economy to one dominated by industry and commerce. The construction of Interstate 75 and the growth of Atlanta’s suburbs led to a population boom. Today, the county is known for its vibrant communities and proximity to Atlanta’s job market.
Colleges and Universities
- Kennesaw State University: A large public university offering undergraduate and graduate programs in fields like business, engineering, and health sciences.
- Life University: A private university in Marietta known for its chiropractic program and health sciences.
- Chattahoochee Technical College: Offers career training and technical education in a variety of disciplines, including computer technology, nursing, and automotive repair.
Major Landmarks
Cobb County is home to landmarks such as Kennesaw Mountain National Battlefield Park, a historic Civil War site with hiking trails and educational exhibits. The Battery Atlanta and Truist Park, where the Atlanta Braves play, form a major entertainment district. Six Flags Over Georgia is one of the largest amusement parks in the Southeast. Marietta Square offers shopping, dining, and the historic Marietta Museum of History. Chattahoochee River National Recreation Area provides outdoor recreation opportunities, and Cobb Energy Performing Arts Centre hosts concerts, operas, and other cultural events.
4. DeKalb County
County Facts
- Population: 764,382 (2020 Census)
- Area Codes: 404, 470, 678, 770
- ZIP Codes: 30002-30394
- County Seat: Decatur
Geography and History
DeKalb County is situated just east of Atlanta and spans 271 square miles. It was created in 1822 and named after Baron Johann de Kalb, a hero of the American Revolution. Initially an agricultural region, DeKalb County became more urbanized as Atlanta expanded. The county saw rapid growth in the mid-20th century, and today it includes diverse communities and bustling neighborhoods. It is also home to several higher education institutions and is a major part of the Atlanta metropolitan area. The county’s geography is marked by rolling hills and suburban development, with large parks and nature reserves.
Colleges and Universities
- Emory University: A private research university known for its programs in medicine, law, and business, consistently ranked among the top universities in the U.S.
- Agnes Scott College: A private women’s liberal arts college in Decatur, known for its rigorous academic programs and global learning initiatives.
- Georgia State University (Perimeter College): Offers associate degrees and serves as a gateway to four-year programs.
- Oglethorpe University: A private liberal arts university known for its architecture and diverse academic offerings.
Major Landmarks
DeKalb County is known for Stone Mountain Park, a massive granite mountain with hiking trails, a carving of Confederate leaders, and attractions like a cable car and laser show. Fernbank Museum of Natural History and Fernbank Science Center offer educational exhibits and planetarium shows. Emory University’s Michael C. Carlos Museum houses a vast collection of ancient artifacts. Decatur Square is a popular destination for its restaurants, shops, and festivals. Arabia Mountain National Heritage Area offers hiking and views of unique granite outcrops, while Callanwolde Fine Arts Center is a historic mansion that hosts cultural events.
5. Chatham County
County Facts
- Population: 295,291 (2020 Census)
- Area Codes: 912
- ZIP Codes: 31302-31421
- County Seat: Savannah
Geography and History
Chatham County, located in southeastern Georgia, covers 632 square miles and is known for its coastal location along the Atlantic Ocean. The county was founded in 1777 and named after William Pitt, the Earl of Chatham, a British supporter of the American colonies. Savannah, the county seat, was established in 1733 by General James Oglethorpe and is one of the oldest cities in the U.S. Historically, Chatham County was a major center for agriculture, trade, and shipping. The Port of Savannah is one of the busiest ports in the U.S., making the county a key player in global commerce. The county’s coastal geography includes marshes, rivers, and islands, contributing to its tourism appeal.
Colleges and Universities
- Savannah College of Art and Design (SCAD): A private institution known for its programs in design, fashion, film, and visual arts.
- Armstrong Atlantic State University (now part of Georgia Southern University): Offers a variety of undergraduate and graduate programs in fields like health sciences, education, and business.
- Savannah State University: A public historically Black university offering degrees in liberal arts, business, and science.
- South University: A private institution offering degrees in business, health care, and legal studies.
Major Landmarks
Chatham County is known for its historic landmarks, including Forsyth Park, a 30-acre park in Savannah with walking paths and a famous fountain. River Street offers a vibrant waterfront with shops, restaurants, and views of the Savannah River. The Cathedral of St. John the Baptist is one of the most beautiful churches in the South. Bonaventure Cemetery is famous for its moss-draped trees and historic graves. Tybee Island offers beaches and the historic Tybee Island Light Station. The Juliette Gordon Low Birthplace, home of the Girl Scouts’ founder, and Wormsloe Historic Site preserve the county’s colonial history.
6. Clayton County
County Facts
- Population: 297,595 (2020 Census)
- Area Codes: 404, 470, 678, 770
- ZIP Codes: 30236-30297
- County Seat: Jonesboro
Geography and History
Clayton County, located just south of Atlanta, spans 144 square miles and is one of Georgia’s smaller counties by area. The county was created in 1858 and named after Augustin Smith Clayton, a prominent Georgia judge. Historically, the county was a rural farming area, but it transformed into a suburban community as Atlanta’s metropolitan area expanded. The county’s proximity to Hartsfield-Jackson Atlanta International Airport, one of the busiest airports in the world, plays a significant role in its economy today. Clayton County has a mix of urban and suburban environments with growing commercial and residential developments.
Colleges and Universities
- Clayton State University: A public university in Morrow, offering undergraduate and graduate programs with a focus on business, health care, and the arts.
- Atlanta Technical College (South Campus): Provides technical training and career-focused education in fields such as health care, business, and automotive technology.
Major Landmarks
Clayton County is home to Stately Oaks Plantation, a historic home dating back to the 19th century, offering insights into Southern antebellum life. Clayton County International Park offers recreational activities, including swimming, tennis, and fishing. The Road to Tara Museum in Jonesboro celebrates “Gone with the Wind” and the history of the Civil War. The National Archives at Atlanta houses important historical records for researchers. Reynolds Nature Preserve provides hiking trails and outdoor educational programs. The Clayton County Performing Arts Center hosts various cultural events, while the nearby Hartsfield-Jackson Atlanta International Airport plays a critical role in the region’s connectivity and economy.
7. Cherokee County
County Facts
- Population: 266,620 (2020 Census)
- Area Codes: 770, 678, 470
- ZIP Codes: 30102-30189
- County Seat: Canton
Geography and History
Cherokee County is located in northern Georgia, just north of the Atlanta metropolitan area, and covers 424 square miles. The county was established in 1831 and was originally part of the Cherokee Nation’s territory before the Indian Removal Act led to the relocation of the Cherokee people. The area became known for its agriculture and timber industries in the 19th century, but with the expansion of the Atlanta suburbs, Cherokee County saw significant population growth in the 20th century. Today, the county balances suburban development with rural landscapes, including lakes, mountains, and forests.
Colleges and Universities
- Chattahoochee Technical College: Offers technical training and career programs in fields like health care, business, and information technology.
- Reinhardt University: A private liberal arts university located in Waleska, known for its business, education, and music programs.
Major Landmarks
Cherokee County is known for Lake Allatoona, a large reservoir that offers boating, fishing, and camping. The Cherokee County History Museum in Canton provides insights into the region’s Native American and settler history. Etowah River Park offers scenic walking trails along the river, while Blanket’s Creek Mountain Bike Trails are a favorite for outdoor enthusiasts. Hickory Log Creek Reservoir is another popular spot for fishing and kayaking. The Woodstock Downtown area has undergone revitalization, with shops, restaurants, and cultural events attracting visitors. Georgia National Cemetery in Canton honors veterans and their families.
8. Forsyth County
County Facts
- Population: 251,283 (2020 Census)
- Area Codes: 770, 470, 678
- ZIP Codes: 30028-30041
- County Seat: Cumming
Geography and History
Forsyth County is located in north-central Georgia and spans 247 square miles. It was established in 1832 and named after John Forsyth, a former Georgia governor and U.S. Secretary of State. Forsyth County remained mostly rural and agricultural for much of its history, but in recent decades it has become one of the fastest-growing counties in the United States due to suburban development and its proximity to Atlanta. The county is bordered by Lake Lanier to the east, which serves as a major recreational destination. Its location in the Appalachian foothills gives the region a mix of scenic landscapes and suburban communities.
Colleges and Universities
- Lanier Technical College (Forsyth Campus): Provides technical and vocational training in fields such as automotive technology, health sciences, and business.
- University of North Georgia (Cumming Campus): Offers undergraduate and graduate programs in business, education, and the arts.
Major Landmarks
Forsyth County features Lake Lanier, one of the largest lakes in Georgia, offering boating, fishing, and water sports. Sawnee Mountain Preserve provides hiking trails with scenic views of the surrounding area. The Cumming Fairgrounds host events throughout the year, including the popular Cumming Country Fair & Festival. Poole’s Mill Covered Bridge is a historic landmark and picnic spot. Mary Alice Park offers lakeside recreation, while Central Park in Cumming provides athletic fields and walking trails. The Collection at Forsyth is a popular shopping and entertainment destination.
9. Henry County
County Facts
- Population: 240,712 (2020 Census)
- Area Codes: 770, 678, 470
- ZIP Codes: 30228-30253
- County Seat: McDonough
Geography and History
Henry County is located in the southern part of the Atlanta metropolitan area and covers 327 square miles. The county was established in 1821 and named after Patrick Henry, a Revolutionary War hero. Originally a rural farming community, Henry County has seen rapid suburban growth due to its proximity to Atlanta and the development of major transportation routes like Interstate 75. The county features a mix of suburban neighborhoods, commercial developments, and rural areas. Its central location within Georgia makes it an important transportation and logistics hub.
Colleges and Universities
- Southern Crescent Technical College: Provides career and technical education in health sciences, business, and skilled trades.
- Mercer University (Henry County Regional Academic Center): Offers degree programs for adult learners and working professionals in education, business, and health care.
Major Landmarks
Henry County is home to Nash Farm Battlefield, a historic Civil War site with walking trails and reenactments. Panola Mountain State Park, located nearby, offers hiking, archery, and educational programs. Heritage Park Veterans Museum in McDonough honors military veterans with exhibits and memorials. Atlanta Motor Speedway, located in Hampton, is a major venue for NASCAR events and other racing activities. Henry County Performing Arts Center hosts a variety of cultural and entertainment events. Southern Belle Farm offers seasonal activities like corn mazes, pumpkin patches, and strawberry picking.
10. Richmond County
County Facts
- Population: 206,607 (2020 Census)
- Area Codes: 706, 762
- ZIP Codes: 30812-30999
- County Seat: Augusta
Geography and History
Richmond County is located in eastern Georgia, along the South Carolina border, and covers 329 square miles. It is home to Augusta, Georgia’s second-oldest city, founded in 1736. Richmond County was named after Charles Lennox, Duke of Richmond, and was officially established in 1777. Augusta became a significant center for trade, military operations, and manufacturing during the 19th and early 20th centuries. Today, Richmond County is known for its blend of historical sites, medical institutions, and its annual hosting of The Masters Tournament, one of golf’s most prestigious events. The Savannah River runs along the county’s border, providing a scenic backdrop and contributing to the region’s economy.
Colleges and Universities
- Augusta University: A public research university known for its medical school, nursing, and health sciences programs.
- Paine College: A private historically Black college in Augusta, focusing on liberal arts and education.
- Augusta Technical College: Provides technical education and vocational training in fields such as business, health care, and skilled trades.
Major Landmarks
Richmond County is best known for Augusta National Golf Club, home of The Masters Tournament, which draws golf enthusiasts from around the world. The Augusta Canal National Heritage Area highlights the area’s industrial history and offers scenic boat tours and hiking trails. The Augusta Museum of History showcases the city’s rich past, while The Boyhood Home of President Woodrow Wilson preserves the house where the 28th U.S. president grew up. Phinizy Swamp Nature Park offers wildlife viewing and nature trails. Sacred Heart Cultural Center is a historic former church now serving as an event venue. Riverwalk Augusta provides walking paths and views of the Savannah River.