| ZIP Codes: | 6 ZIP Codes (5 Standard, 1 PO Box, 0 Unique) [See All] |
| Area Codes: | 601 / 769 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:12:51 PM |
| Population: | 24,834 [See All] |
| FIPS: | 28127 |
| CBSA: | Jackson, MS |
| Land Area: | 624 sq mi |
| Water Area: | 1 sq mi |
| Coordinates: | 31.9434, -89.9177 |
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24,834 residents live across 6 ZIPs covering 624 sq mi, served by 6 distinct USPS-recognized cities.
Population moved from 26,732 to 24,834 from 2014 to 2024 — a -7.1% change. 0 ZIPs gained residents, 6 lost.
The county's wealthiest ZIP 39044 (Braxton, $74,417 median) and poorest ZIP 39062 (D Lo, $32,292) are 4.4 miles apart — a 2.3× income gap across local geography.
Median home values vary 2.2× across this county — from $75,000 in 39062 (D Lo) to $163,500 in 39044 (Braxton).
Density varies 4× across the county — from 17 people/sq mi in 39149 (Pinola) to 64 in 39111 (Magee).
Educational attainment ranges from 7.4% bachelor's+ in 39062 (D Lo) to 19.1% in 39114 (Mendenhall) — the breadth of educational profiles across the area.
Within Mississippi, this is the #37 most populous of 82 counties and ranks #26 for median household income .
Weighted by population, the typical household earns about $57,731 across the county — reflecting what a typical resident sees, not a simple ZIP average.
16.7% of adults age 25+ hold a bachelor's degree or higher (2,884 of 17,223 reporting).
5 Standard delivery, 1 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.
Simpson County lost 7.1% of residents between 2014 and 2024. ZIPs that shed the largest share:
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 39114 | Mendenhall | Standard | 9,359 | $60,286 | 192.7 | -2.3% |
| 39111 | Magee | Standard | 9,143 | $49,140 | 142.6 | -4.8% |
| 39044 | Braxton | Standard | 2,994 | $74,417 | 138.5 | -26.1% |
| 39149 | Pinola | Standard | 1,485 | $67,880 | 89.4 | -1.8% |
| 39082 | Harrisville | Standard | 1,416 | $58,242 | 61.2 | -7.3% |
| 39062 | D Lo | PO Box | 437 | $32,292 | 0.0 | -4.6% |