Cobb County, Georgia Cities (2024)

Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)

City
Rank
2024 Pop.
2020 Pop.
Change
Density (/mi²)
Area (mi²)
Type
Marietta163,34161,0510.91%2,69523.5City
Smyrna256,69956,1670.24%3,54516.0City
Mableton342,40241,6470.9%2,07720.4CDP
Kennesaw435,12233,3641.27%3,5999.8City
Powder Springs519,63016,9103.59%2,5137.8City
Vinings613,48212,5462.02%4,3133.1CDP
Fair Oaks79,8469,4471.19%5,0442.0CDP
Austell88,2417,8671.14%1,3006.3City
Kennesaw State University93,0823,5687.69%7,8620.4CDP

Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.

What is the largest city in Cobb County, Georgia?

Marietta is the largest city in Cobb County.

What is the smallest city in Cobb County, Georgia?

Kennesaw State University is the smallest city in Cobb County.

How many cities are in Cobb County?

There are 9 cities in Cobb County, Georgia.

Frequently Asked Questions