| ZIP Codes: | 8 ZIP Codes (8 Standard, 0 PO Box, 0 Unique) [See All] |
| Area Codes: | 235 / 573 / 660 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:12:44 PM |
| Population: | 20,514 [See All] |
| FIPS: | 29131 |
| Land Area: | 514 sq mi |
| Water Area: | 6 sq mi |
| Coordinates: | 38.2144, -92.4394 |
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20,514 residents live across 8 ZIPs covering 514 sq mi, served by 8 distinct USPS-recognized cities.
Population moved from 20,137 to 20,514 from 2014 to 2024 — a +1.9% change. 4 ZIPs gained residents, 4 lost.
The county's wealthiest ZIP 65075 (Saint Elizabeth, $87,431 median) and poorest ZIP 65017 (Brumley, $39,457) are 16.2 miles apart — a 2.2× income gap across local geography.
Median home values vary 2.7× across this county — from $103,900 in 65064 (Olean) to $283,100 in 65075 (Saint Elizabeth).
Density varies 5× across the county — from 16 people/sq mi in 65082 (Tuscumbia) to 80 in 65026 (Eldon).
Educational attainment ranges from 9.4% bachelor's+ in 65047 (Kaiser) to 36.9% in 65083 (Ulman) — the breadth of educational profiles across the area.
Within Missouri, this is the #54 most populous of 116 counties and ranks #59 for median household income .
Weighted by population, the typical household earns about $55,477 across the county — reflecting what a typical resident sees, not a simple ZIP average.
16.3% of adults age 25+ hold a bachelor's degree or higher (2,272 of 13,974 reporting).
8 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.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 65026 | Eldon | Standard | 11,606 | $48,824 | 145.3 | 4.8% |
| 65486 | Iberia | Standard | 2,956 | $71,744 | 125.2 | -16.8% |
| 65047 | Kaiser | Standard | 1,445 | $53,750 | 35.0 | 17.3% |
| 65017 | Brumley | Standard | 1,183 | $39,457 | 57.6 | -18.2% |
| 65082 | Tuscumbia | Standard | 1,165 | $60,260 | 72.0 | -2.1% |
| 65075 | Saint Elizabeth | Standard | 1,154 | $87,431 | 46.8 | 19.3% |
| 65064 | Olean | Standard | 727 | $66,667 | 18.0 | 118.3% |
| 65083 | Ulman | Standard | 278 | — | 14.3 | -19.9% |