| ZIP Codes: | 7 ZIP Codes (4 Standard, 3 PO Box, 0 Unique) [See All] |
| Area Codes: | 601 / 769 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:12:50 PM |
| Population: | 40,972 [See All] |
| FIPS: | 28113 |
| CBSA: | McComb, MS |
| Land Area: | 529 sq mi |
| Water Area: | 2 sq mi |
| Coordinates: | 31.1585, -90.4845 |
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40,972 residents live across 7 ZIPs covering 529 sq mi, served by 6 distinct USPS-recognized cities.
Population moved from 41,687 to 40,972 from 2014 to 2024 — a -1.7% change. 2 ZIPs gained residents, 3 lost.
The county's wealthiest ZIP 39666 (Summit, $45,482 median) and poorest ZIP 39648 (Mccomb, $42,737) are 9.7 miles apart — a 1.1× income gap across local geography.
Median home values vary 2.1× across this county — from $74,100 in 39657 (Osyka) to $158,200 in 39666 (Summit).
Density varies 11× across the county — from 19 people/sq mi in 39657 (Osyka) to 221 in 39648 (Mccomb).
Educational attainment ranges from 2.8% bachelor's+ in 39657 (Osyka) to 19.9% in 39666 (Summit) — the breadth of educational profiles across the area.
Within Mississippi, this is the #17 most populous of 82 counties and ranks #61 for median household income .
Weighted by population, the typical household earns about $43,579 across the county — reflecting what a typical resident sees, not a simple ZIP average.
15.4% of adults age 25+ hold a bachelor's degree or higher (4,159 of 26,955 reporting).
4 Standard delivery, 3 PO Box only, 0 single-entity Unique ZIPs serve this county.
A frontier county — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.