| ZIP Codes: | 8 ZIP Codes (4 Standard, 2 PO Box, 2 Unique) [See All] |
| Area Codes: | 601 / 769 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:12:48 PM |
| Population: | 113,889 [See All] |
| FIPS: | 28035 |
| CBSA: | Hattiesburg, MS |
| Land Area: | 604 sq mi |
| Water Area: | 5 sq mi |
| Coordinates: | 31.2674, -89.2724 |
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113,889 residents live across 8 ZIPs covering 604 sq mi, served by 3 distinct USPS-recognized cities.
Population moved from 110,277 to 113,889 from 2014 to 2024 — a +3.3% change. 3 ZIPs gained residents, 2 lost.
The county's wealthiest ZIP 39402 (Hattiesburg, $75,220 median) and poorest ZIP 39401 (Hattiesburg, $41,127) are 9.2 miles apart — a 1.8× income gap across local geography.
Median home values vary 1.9× across this county — from $134,300 in 39401 (Hattiesburg) to $253,900 in 39402 (Hattiesburg).
Density varies 3107× across the county — from 10 people/sq mi in 39425 (Brooklyn) to 31,826 in 39406 (Hattiesburg).
Educational attainment ranges from 9.9% bachelor's+ in 39425 (Brooklyn) to 46.4% in 39402 (Hattiesburg) — the breadth of educational profiles across the area.
Within Mississippi, this is the #6 most populous of 82 counties and ranks #9 for median household income .
Weighted by population, the typical household earns about $61,928 across the county — reflecting what a typical resident sees, not a simple ZIP average.
34.9% of adults age 25+ hold a bachelor's degree or higher (24,798 of 71,032 reporting). The most-educated ZIPs cluster around Hattiesburg.
4 Standard delivery, 2 PO Box only, 2 single-entity Unique ZIPs serve this county.
1 ZIP in this county where more than 60% of adults 25+ hold a bachelor's degree — typically college campuses, research enclaves, or tech corridors.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 39402 | Hattiesburg | Standard | 44,620 | $75,220 | 95.9 | 8.1% |
| 39401 | Hattiesburg | Standard | 42,531 | $41,127 | 195.4 | -3.7% |
| 39465 | Petal | Standard | 22,882 | $74,035 | 125.5 | 8.2% |
| 39406 | Hattiesburg | Unique | 1,935 | — | 0.1 | -8.5% |
| 39425 | Brooklyn | Standard | 1,921 | $69,525 | 187.5 | 23.2% |
| 39407 | Hattiesburg | Unique | — | — | 0.0 | — |
| 39404 | Hattiesburg | PO Box | — | — | 0.0 | — |
| 39403 | Hattiesburg | PO Box | — | — | 0.0 | — |