| ZIP Codes: | 4 ZIP Codes (4 Standard, 0 PO Box, 0 Unique) [See All] |
| Area Codes: | 601 / 769 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:12:50 PM |
| Population: | 24,839 [See All] |
| FIPS: | 28091 |
| Land Area: | 568 sq mi |
| Water Area: | 6 sq mi |
| Coordinates: | 31.1935, -89.8798 |
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24,839 residents live across 4 ZIPs covering 568 sq mi, served by 4 distinct USPS-recognized cities.
Population moved from 26,935 to 24,839 from 2014 to 2024 — a -7.8% change. 1 ZIPs gained residents, 3 lost.
The county's wealthiest ZIP 39643 (Kokomo, $56,042 median) and poorest ZIP 39483 (Foxworth, $36,992) are 7.3 miles apart — a 1.5× income gap across local geography.
Median home values vary 1.8× across this county — from $80,600 in 39483 (Foxworth) to $141,700 in 39429 (Columbia).
Density varies 2× across the county — from 28 people/sq mi in 39478 (Sandy Hook) to 53 in 39429 (Columbia).
Educational attainment ranges from 8.6% bachelor's+ in 39483 (Foxworth) to 14.8% in 39429 (Columbia) — the breadth of educational profiles across the area.
Within Mississippi, this is the #36 most populous of 82 counties and ranks #53 for median household income .
Weighted by population, the typical household earns about $45,094 across the county — reflecting what a typical resident sees, not a simple ZIP average.
13.0% of adults age 25+ hold a bachelor's degree or higher (2,220 of 17,135 reporting).
4 Standard delivery, 0 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.
One ZIP holds the majority of this county's population — a sign of a county built around a single city or town.
Marion County lost 7.8% of residents between 2014 and 2024. ZIPs that shed the largest share: