| ZIP Codes: | 7 ZIP Codes (5 Standard, 2 PO Box, 0 Unique) [See All] |
| Area Codes: | 470 / 678 / 770 / 943 |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 2:11:46 PM |
| Population: | 121,331 [See All] |
| FIPS: | 13217 |
| CBSA: | Atlanta-Sandy Springs-Roswell, GA |
| Land Area: | 359 sq mi |
| Water Area: | 7 sq mi |
| Coordinates: | 33.5596, -83.8274 |
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121,331 residents live across 7 ZIPs covering 359 sq mi, served by 5 distinct USPS-recognized cities.
Population moved from 105,789 to 121,331 from 2014 to 2024 — a +14.7% change. 4 ZIPs gained residents, 2 lost.
The county's wealthiest ZIP 30055 (Mansfield, $84,760 median) and poorest ZIP 30056 (Newborn, $68,494) are 5.8 miles apart — a 1.2× income gap across local geography.
Median home values vary 1.3× across this county — from $244,000 in 30016 (Covington) to $318,200 in 30054 (Oxford).
Density varies 12× across the county — from 55 people/sq mi in 30056 (Newborn) to 683 in 30016 (Covington).
Most of the decade's growth concentrated around Covington — top growth ZIPs averaged +29.7% over the past ten years ( 30055 , 30016 and 30014 ).
Educational attainment ranges from 15.5% bachelor's+ in 30055 (Mansfield) to 31.5% in 30054 (Oxford) — the breadth of educational profiles across the area.
Within Georgia, this is the #24 most populous of 161 counties and ranks #39 for median household income with the #26 fastest decade growth .
Weighted by population, the typical household earns about $76,710 across the county — reflecting what a typical resident sees, not a simple ZIP average.
23.9% of adults age 25+ hold a bachelor's degree or higher (19,173 of 80,152 reporting). The most-educated ZIPs cluster around Covington.
5 Standard delivery, 2 PO Box only, 0 single-entity Unique ZIPs serve this county.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 30016 | Covington | Standard | 62,968 | $79,527 | 92.1 | 20.7% |
| 30014 | Covington | Standard | 41,425 | $72,254 | 125.7 | 12.2% |
| 30054 | Oxford | Standard | 10,730 | $76,427 | 41.4 | -8.2% |
| 30055 | Mansfield | Standard | 3,800 | $84,760 | 57.2 | 56.3% |
| 30056 | Newborn | Standard | 2,344 | $68,494 | 42.6 | 4.5% |
| 30070 | Porterdale | PO Box | 64 | $59,583 | 0.0 | -81.8% |
| 30015 | Covington | PO Box | — | — | 0.0 | — |