If you’re flying into or out of Atlanta, you’re probably dealing with Hartsfield‑Jackson Atlanta International Airport (ATL). It’s a huge travel hub, and a common question is:
What county is the Atlanta airport in?
The short answer:
Most of Hartsfield‑Jackson Atlanta International Airport is in Clayton County, Georgia, with a smaller portion extending into Fulton County.
Because the airport sits right on the county line, it’s helpful to understand how that affects directions, services, and what to expect when you’re getting here and around.
The main terminal complex (Domestic and International Terminals) and most runways are generally in Clayton County, just south of the Atlanta city limits, with northern sections and some facilities extending into Fulton County.
Most travelers use this address:
Hartsfield‑Jackson Atlanta International Airport (ATL)
6000 N Terminal Pkwy
Atlanta, GA 30320
You’ll notice the city is listed as Atlanta, even though much of the physical land is in Clayton County. That’s normal and doesn’t affect navigation, ride pickups, or airline operations.
For most travelers, it won’t change your plans whether the airport is in Clayton or Fulton County. Your airline ticket, rideshare app, or MARTA train will get you where you need to go either way.
However, knowing the county can matter for:
If you live in the metro area and see references to Clayton County in airport-related notices, this is why.
| Topic | What To Know About ATL |
|---|---|
| Main county | Clayton County, GA |
| Secondary county | Fulton County, GA |
| City that owns the airport | City of Atlanta |
| Mailing address city | Atlanta, GA 30320 |
| Distance from Downtown Atlanta | Roughly 10 miles south of downtown, depending on your route |
| Main access highways | I‑85, with close connections to I‑75, I‑285, and Camp Creek Pkwy |
| Local transit connection | MARTA rail and bus service directly to the Domestic Terminal |
Whether you live in Midtown, Decatur, or the Southside, it helps to know the basics of getting to an airport that straddles Clayton and Fulton counties.
You’ll cross from Fulton County into Clayton County as you approach the airport, but it all feels like one continuous drive.
Because a lot of Southside communities are in or near Clayton County, accessing ATL is usually straightforward and quicker than from the northern suburbs.
Even though the airport sits mostly in Clayton County, MARTA is run by the Metropolitan Atlanta Rapid Transit Authority, which serves the broader region, not just one county.
You’ll be crossing Fulton County and possibly DeKalb County to reach a station that’s physically in Clayton County, but the fare and trip process are the same.
Hartsfield‑Jackson has two main passenger terminal complexes:
Both are part of the same airport property that spans Clayton and Fulton counties.
Because the airport touches two counties and is owned by the City of Atlanta, multiple agencies coordinate there.
If you need help, you generally won’t have to think about county boundaries—just look for airport police, information desks, or uniformed staff.
If you live in the Atlanta area, you might care about the county of the airport for more than just travel.
While ATL is an Atlanta city‑owned facility, much of the surrounding land, hotels, and airport‑area businesses are in Clayton County, with some in Fulton County. That can affect:
Travelers don’t need to worry about this, but locals opening a business near the airport often do.
Even though the county line is a technical detail, a few practical points help when you’re planning your trip.
Always plug in something like:
You don’t need to specify Clayton or Fulton County in your GPS or ride app.
⭐ Tip: When arranging pickup or drop‑off, tell your driver Domestic vs. International, not the county.
Because ATL is a major hub and sits just south of central Atlanta:
Understanding how the airport fits into Atlanta’s county map can make it easier to navigate not just your flight, but also the local geography, transportation options, and government services connected to Hartsfield‑Jackson Atlanta International Airport.
