| ZIP Codes: | 6 ZIP Codes (4 Standard, 2 PO Box, 0 Unique) [See All] |
| Area Code: | 912 |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 2:11:43 PM |
| Population: | 64,347 [See All] |
| FIPS: | 13103 |
| CBSA: | Savannah, GA |
| Land Area: | 431 sq mi |
| Water Area: | 3 sq mi |
| Coordinates: | 32.3107, -81.3449 |
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64,347 residents live across 6 ZIPs covering 431 sq mi, served by 6 distinct USPS-recognized cities.
Population moved from 48,748 to 64,347 from 2014 to 2024 — a +32.0% change. 5 ZIPs gained residents, 1 lost.
The county's wealthiest ZIP 31307 (Eden, $105,679 median) and poorest ZIP 31303 (Clyo, $75,968) are 23.3 miles apart — a 1.4× income gap across local geography.
Median home values vary 1.8× across this county — from $180,900 in 31303 (Clyo) to $318,300 in 31307 (Eden).
Density varies 255× across the county — from 32 people/sq mi in 31303 (Clyo) to 8,126 in 31318 (Meldrim).
Educational attainment ranges from 2.7% bachelor's+ in 31318 (Meldrim) to 41.2% in 31307 (Eden) — the breadth of educational profiles across the area.
Within Georgia, this is the #38 most populous of 161 counties and ranks #18 for median household income with the #4 fastest decade growth .
On the national stage, Effingham County is and #47 for decade growth .
Weighted by population, the typical household earns about $90,251 across the county — reflecting what a typical resident sees, not a simple ZIP average.
28.0% of adults age 25+ hold a bachelor's degree or higher (11,768 of 42,040 reporting).
4 Standard delivery, 2 PO Box only, 0 single-entity Unique ZIPs serve this county.