Cobb County, Georgia ZIP codes
29 ZIP codes are in Cobb County, plus 6 that cross in from neighboring counties. It's part of the Atlanta-Sandy Springs-Roswell, GA metro area.
- ZIP codes
- 29
- Population in these ZIPs
- 777,758
- Avg. median income
- $104,600population-weighted
- Cities & towns
- 9
Click anywhere on the map to see which ZIP code it's in.
ZIP codes in Cobb County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 30006 PO Box | Marietta | — | — | — |
| 30007 PO Box | Marietta | — | — | — |
| 30008 | Marietta | 35,547 | $74,877 | $325,700 |
| 30060 | Marietta | 38,499 | $67,510 | $341,500 |
| 30061 PO Box | Marietta | — | — | — |
| 30062 | Marietta | 62,284 | $132,631 | $553,100 |
| 30063 PO Box | Marietta | — | — | — |
| 30064 | Marietta | 52,125 | $122,195 | $499,400 |
| 30065 PO Box | Marietta | — | — | — |
| 30066 | Marietta | 61,761 | $116,074 | $441,500 |
| 30067 | Marietta | 47,271 | $83,568 | $402,700 |
| 30068 | Marietta | 33,882 | $150,101 | $672,000 |
| 30069 PO Box | Marietta | — | — | — |
| 30080 | Smyrna | 53,316 | $91,957 | $439,000 |
| 30081 PO Box | Smyrna | — | — | — |
| 30082 | Smyrna | 27,296 | $120,372 | $443,500 |
| 30090 | Marietta | 0 | — | — |
| 30101 | Acworth | 62,593 | $110,774 | $432,800 |
| 30106 | Austell | 23,107 | $68,881 | $303,000 |
| 30111 | Clarkdale | 0 | — | — |
| 30126 | Mableton | 41,829 | $101,891 | $368,400 |
| 30127 | Powder Springs | 71,626 | $110,904 | $364,900 |
| 30144 | Kennesaw | 59,661 | $88,560 | $381,200 |
| 30152 | Kennesaw | 44,977 | $126,578 | $479,000 |
| 30156 PO Box | Kennesaw | — | — | — |
| 30160 PO Box | Kennesaw | — | — | — |
| 30168 | Austell | 26,612 | $64,059 | $279,100 |
| 30339 | Atlanta | 35,372 | $103,277 | $469,100 |
| 31144 PO Box | Kennesaw | — | — | — |
ZIP codes partly in Cobb County
These ZIP codes are mostly in a neighboring county but cover part of Cobb County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 30075 | Roswell | Fulton County | 56,263 | $157,335 | $702,300 |
| 30102 | Acworth | Cherokee County | 45,319 | $97,676 | $378,400 |
| 30122 | Lithia Springs | Douglas County | 27,036 | $69,257 | $278,100 |
| 30141 | Hiram | Paulding County | 27,220 | $86,824 | $313,700 |
| 30157 | Dallas | Paulding County | 53,445 | $93,625 | $324,200 |
| 30188 | Woodstock | Cherokee County | 69,518 | $106,844 | $462,200 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities and towns in Cobb County
Nearby counties
Frequently asked questions
How many ZIP codes are in Cobb County, Georgia?
29 ZIP codes are mainly in Cobb County, and 6 more ZIP codes from neighboring areas reach partly into it.
What cities are in Cobb County?
ZIP codes in Cobb County use the city names Acworth, Atlanta, Austell, Clarkdale, Kennesaw, Mableton, Marietta, Powder Springs and Smyrna.
What metro area is Cobb County in?
Cobb County is part of the Atlanta-Sandy Springs-Roswell, GA metropolitan statistical area.