County ZIP codes · Georgia · FIPS 13089
DeKalb County, GA ZIP Codes
DeKalb County, Georgia has 48 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 32 residential and 16 for PO boxes or a single organization. 29 of the residential ones lie mainly in DeKalb County and 3 mainly in a neighboring county; 13 cross the county line. Median household income ranges from $51,511 in 30288 (Conley) to $140,677 in 30307 (Atlanta) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of DeKalb County?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
How different are its ZIP codes?
The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $63,517 and $107,955.
They carry 12 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 32 residential ZIP codes in DeKalb County
29 ZIP codes lie mainly in DeKalb County; 3 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 30083 | Stone Mountain | 62,724 | 3,513 | $55k | $242k | 100% |
| 30058 | Lithonia | 62,614 | 2,051 | $62k | $250k | 100% |
| 30319 | Atlanta | 45,985 | 4,458 | $131k | $763k | 86% |
| 30038 | Lithonia | 43,776 | 1,520 | $74k | $247k | 100% |
| 30032 | Decatur | 42,948 | 3,147 | $63k | $274k | 100% |
| 30294 | Ellenwood | 41,983 | 1,281 | $80k | $260k | 36% |
| 30034 | Decatur | 41,847 | 2,492 | $64k | $251k | 100% |
| 30338 | Atlanta | 39,465 | 4,005 | $135k | $611k | 98% |
| 30087 | Stone Mountain | 38,977 | 1,723 | $97k | $348k | 68% |
| 30084 | Tucker | 38,242 | 2,570 | $81k | $361k | 82% |
| 30341 | Atlanta | 36,021 | 3,603 | $86k | $463k | 100% |
| 30316 | Atlanta | 35,107 | 2,691 | $103k | $443k | 84% |
| 30030 | Decatur | 31,756 | 4,714 | $127k | $632k | 100% |
| 30033 | Decatur | 31,310 | 3,545 | $112k | $455k | 100% |
| 30340 | Atlanta | 30,062 | 3,645 | $63k | $344k | 81% |
| 30088 | Stone Mountain | 29,240 | 3,729 | $70k | $239k | 100% |
| 30021 | Clarkston | 27,781 | 7,769 | $52k | $275k | 100% |
| 30329 | Atlanta | 27,278 | 4,976 | $77k | $488k | 100% |
| 30345 | Atlanta | 24,492 | 3,462 | $112k | $574k | 100% |
| 30307 | Atlanta | 21,709 | 4,774 | $141k | $727k | 82% |
| 30035 | Decatur | 21,569 | 2,530 | $67k | $244k | 100% |
| 30360 | Atlanta | 16,855 | 2,758 | $98k | $426k | 72% |
| 30317 | Atlanta | 15,622 | 4,415 | $108k | $541k | 100% |
| 30288 | Conley | 8,116 | 1,168 | $52k | $238k | 72% |
| 30002 | Avondale Estates | 5,225 | 3,077 | $90k | $532k | 100% |
| 30079 | Scottdale | 4,831 | 4,122 | $83k | $348k | 100% |
| 30346 | Atlanta | 4,411 | 4,367 | $95k | $596k | 100% |
| 30322 | Atlanta | 2,521 | 5,375 | – | – | 100% |
| 30072 | Pine Lake | 800 | 6,250 | $79k | $310k | 100% |
Partly in DeKalb County
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).
Which ZIP codes cross the county line?
13 ZIP codes of DeKalb County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In DeKalb | Elsewhere |
|---|---|---|
| 30039 | 6% | Gwinnett County94% |
| 30319 | 86% | Fulton County14% |
| 30294 | 36% | Clayton County35%; Henry County27%; Rockdale County1% |
| 30338 | 98% | Fulton County2% |
| 30087 | 68% | Gwinnett County32% |
| 30084 | 82% | Gwinnett County18% |
| 30316 | 84% | Fulton County16% |
| 30340 | 81% | Gwinnett County19% |
| 30324 | 25% | Fulton County75% |
| 30306 | 42% | Fulton County58% |
| 30307 | 82% | Fulton County18% |
| 30360 | 72% | Gwinnett County28% |
| 30288 | 72% | Clayton County28% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
PO Box and single-organization ZIP codes
Source: GeoNames postal codes (CC BY 4.0).
Which first three digits do DeKalb County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. DeKalb County's ZIP codes use 5 prefixes: 300, 302, 303, 311 and 399.
| Prefix | Sectional center | Here | All codes |
|---|---|---|---|
| 300 | North Metro, GA (SCF 300) | 22 | 89 |
| 302 | Atlanta, GA (SCF 303) | 2 | 65 |
| 303 | Atlanta, GA (SCF 303) | 19 | 75 |
| 311 | Atlanta, GA (SCF 303) | 4 | 18 |
| 399 | Atlanta, GA (SCF 303) | 1 | 1 |
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.