Cobb County, GA ZIP codes
There are 29 ZIP codes in Cobb County, GA, in 9 towns, from 30006 to 31144. The largest are 30127 (Powder Springs), 30062 (Marietta) and 30101 (Acworth).
The county seat is Marietta.
- ZIP codes
- 29
- Towns
- 9
- County seat
- Marietta
- County FIPS
13067- State
- Georgia
- Population
- 775,208
- Median household income
- $102,738
- Land area
- 340 sq mi
- Area code
- 404
- Metro area
- Atlanta-Sandy Springs-Roswell
Cobb County ZIP codes by town
Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.
Map of Cobb County ZIP codes
The ZIP codes of Cobb County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Cobb County in numbers
About 775,208 people live in Cobb County, in 295,714 households, the 3rd most populous of Georgia's 159 counties. The median household income is $102,738 a year, 33% above the Georgia median of $77,353 (US: $80,734). The median owner-occupied home is valued at $407,200 (34% above the Georgia median), and median gross rent is $1,730 a month. The median age is 37.5; 50.8% of adults 25 and over hold a bachelor's degree or higher (34.9% across Georgia); the average commute takes 29 minutes.
| Population | 775,208 |
|---|---|
| Households | 295,714 |
| Median age | 37.5 |
| Median household income | $102,738 |
| Median home value | $407,200 |
| Median gross rent | $1,730 |
| Bachelor's degree or higher | 50.8% |
| Mean commute | 29.4 min |
| Population density | 2,282 / sq mi |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.
Largest towns in Cobb County
| Town | ZIP codes | Population |
|---|---|---|
| Atlanta | 1 | 505,268 |
| Mableton | 1 | 77,678 |
| Marietta | 14 | 62,263 |
| Smyrna | 3 | 56,633 |
| Kennesaw | 5 | 34,605 |
| Acworth | 1 | 22,473 |
| Powder Springs | 1 | 18,009 |
| Austell | 2 | 8,447 |
Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.
Neighbouring counties
Counties that share a ZIP code with Cobb County.
Not sure you are in Cobb County? What county am I in? answers from your location, near a county line included.
Every ZIP code in Cobb County, with figures
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
30006 | Marietta , GA | No street area | — | — | — |
30007 | Marietta , GA | No street area | — | — | — |
30008 | Marietta , GA | Standard | 35,547 | $74,877 | $307,600 |
30060 | Marietta , GA | Standard | 38,499 | $67,510 | $316,000 |
30061 | Marietta , GA | No street area | — | — | — |
30062 | Marietta , GA | Standard | 62,284 | $132,631 | $491,200 |
30063 | Marietta , GA | No street area | — | — | — |
30064 | Marietta , GA | Standard | 52,125 | $122,195 | $466,700 |
30065 | Marietta , GA | No street area | — | — | — |
30066 | Marietta , GA | Standard | 61,761 | $116,074 | $403,200 |
30067 | Marietta , GA | Standard | 47,271 | $83,568 | $445,900 |
30068 | Marietta , GA | Standard | 33,882 | $150,101 | $599,400 |
30069 | Marietta , GA | No street area | — | — | — |
30080 | Smyrna , GA | Standard | 53,316 | $91,957 | $450,400 |
30081 | Smyrna , GA | No street area | — | — | — |
30082 | Smyrna , GA | Standard | 27,296 | $120,372 | $438,700 |
30090 | Marietta , GA | Standard | 0 | — | — |
30101 | Acworth , GA | Standard | 62,593 | $110,774 | $412,400 |
30106 | Austell , GA | Standard | 23,107 | $68,881 | $288,100 |
30111 | Clarkdale , GA | Standard | 0 | — | — |
30126 | Mableton , GA | Standard | 41,829 | $101,891 | $377,000 |
30127 | Powder Springs , GA | Standard | 71,626 | $110,904 | $358,700 |
30144 | Kennesaw , GA | Standard | 59,661 | $88,560 | $345,900 |
30152 | Kennesaw , GA | Standard | 44,977 | $126,578 | $427,500 |
30156 | Kennesaw , GA | No street area | — | — | — |
30160 | Kennesaw , GA | No street area | — | — | — |
30168 | Austell , GA | Standard | 26,612 | $64,059 | $241,700 |
30339 | Atlanta , GA | Standard | 35,372 | $103,277 | $465,800 |
31144 | Kennesaw , GA | No street area | — | — | — |
Cite this page
zipcodes.pro. “Cobb County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/ga/county/cobb
Underlying data is public domain or openly licensed — sources, vintages and licences.