Marietta, Georgia

Marietta population, 2020 to 2024

Marietta added 2,086 residents from July 2020 to July 2024, a change of +3.4%. In the latest year it moved by +23. Among 148 Georgia places of 5,000 or more, that growth ranks 79th; the median place changed by +4.0%. The median place of 5,000+ in Georgia has 16,252 people, so Marietta is 3.9 times that size.

Marietta covers 23.79 square miles of land and 0.08 of water, for 2,653 people per square mile of land. The median Georgia place of 5,000+ has 1,234, so Marietta is denser than the typical town.

What county Marietta is in

All of Marietta's residents live in Cobb County, which had 787,538 residents in 2024. Marietta holds 8.0% of the county's population. The shaded shape is on the map above; dots mark the eight nearest places.

ZIP codes in Marietta

6 ZIP Code Tabulation Areas (ZCTAs) overlap Marietta by at least 10% of the ZCTA's or the city's land: 30008, 30060, 30062, 30064, 30067, 30090. ZCTAs are Census approximations of USPS ZIP code delivery areas. The list comes from the 2020 ZCTA to place relationship file, so a city that annexed land after 2020 may reach into ZIP codes not listed here.

Where Marietta is

The Census internal point of Marietta is at 33.953600, -84.542500. Atlanta, the capital, is 16.7 miles SSE in a straight line. The nearest larger place is Mableton, GA (78,314 people), 9.9 miles away. The nearest city of 100,000 or more is Sandy Springs, GA, 10.1 miles away.

Daylight in Marietta

At 33.95° N, Marietta gets about 14 h 25 min of daylight around the June solstice and 9 h 54 min around the December solstice, a swing of 4 h 32 min. Figures are sunrise to sunset from the SunCalc model for June 21 and December 21, 2026.

Places near Marietta

The eight nearest incorporated places of 1,000+ in Georgia, measured between internal points. The closest is Smyrna, 6.5 miles away, with 57,177 people.