| ZIP Codes: | 5 ZIP Codes (5 Standard, 0 PO Box, 0 Unique) [See All] |
| Area Codes: | 678 / 770 / 943 |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 11:53:02 PM |
| Population: | 274,376 [See All] |
| FIPS: | 13151 |
| CBSA: | Atlanta-Sandy Springs-Roswell, GA |
| Land Area: | 362 sq mi |
| Water Area: | 9 sq mi |
| Coordinates: | 33.4473, -84.1807 |
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274,376 residents live across 5 ZIPs covering 362 sq mi, served by 4 distinct USPS-recognized cities.
Population moved from 225,013 to 274,376 from 2014 to 2024 — a +21.9% change. 5 ZIPs gained residents, 0 lost.
The county's wealthiest ZIP 30252 (Mcdonough, $100,770 median) and poorest ZIP 30281 (Stockbridge, $71,213) are 10.4 miles apart — a 1.4× income gap across local geography.
Median home values vary 1.4× across this county — from $264,700 in 30281 (Stockbridge) to $360,600 in 30252 (Mcdonough).
Density varies 3× across the county — from 492 people/sq mi in 30248 (Locust Grove) to 1,373 in 30253 (Mcdonough).
Educational attainment ranges from 26.6% bachelor's+ in 30281 (Stockbridge) to 32.0% in 30253 (Mcdonough) — the breadth of educational profiles across the area.
Within Georgia, this is the #7 most populous of 161 counties and ranks #24 for median household income with the #15 fastest decade growth .
Weighted by population, the typical household earns about $82,907 across the county — reflecting what a typical resident sees, not a simple ZIP average.
29.4% of adults age 25+ hold a bachelor's degree or higher (52,674 of 178,986 reporting). The most-educated ZIPs cluster around Mcdonough.
5 Standard delivery, 0 PO Box only, 0 single-entity Unique ZIPs serve this county.