| ZIP Codes: | 6 ZIP Codes (4 Standard, 2 PO Box, 0 Unique) [See All] |
| Area Codes: | 235 / 573 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 11:54:03 PM |
| Population: | 17,570 [See All] |
| FIPS: | 29157 |
| Land Area: | 428 sq mi |
| Water Area: | 10 sq mi |
| Coordinates: | 37.7030, -89.7239 |
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17,570 residents live across 6 ZIPs covering 428 sq mi, served by 6 distinct USPS-recognized cities.
Population moved from 17,670 to 17,570 from 2014 to 2024 — a -0.6% change. 1 ZIPs gained residents, 3 lost.
The county's wealthiest ZIP 63775 (Perryville, $63,712 median) and poorest ZIP 63748 (Frohna, $59,478) are 15.4 miles apart — a 1.1× income gap across local geography.
Median home values vary 1.1× across this county — from $177,000 in 63748 (Frohna) to $188,100 in 63775 (Perryville).
Density varies 3× across the county — from 16 people/sq mi in 63748 (Frohna) to 47 in 63775 (Perryville).
Educational attainment ranges from 15.6% bachelor's+ in 63748 (Frohna) to 20.9% in 63775 (Perryville) — the breadth of educational profiles across the area.
Within Missouri, this is the #58 most populous of 116 counties and ranks #58 for median household income .
Weighted by population, the typical household earns about $63,428 across the county — reflecting what a typical resident sees, not a simple ZIP average.
20.5% of adults age 25+ hold a bachelor's degree or higher (2,511 of 12,243 reporting).
4 Standard delivery, 2 PO Box only, 0 single-entity Unique ZIPs serve this county.
One ZIP holds the majority of this county's population — a sign of a county built around a single city or town.