| ZIP Codes: | 8 ZIP Codes (7 Standard, 1 PO Box, 0 Unique) [See All] |
| Area Codes: | 235 / 573 / 660 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:12:45 PM |
| Population: | 42,575 [See All] |
| FIPS: | 29159 |
| CBSA: | Sedalia, MO |
| Land Area: | 620 sq mi |
| Water Area: | 4 sq mi |
| Coordinates: | 38.7177, -93.2591 |
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42,575 residents live across 8 ZIPs covering 620 sq mi, served by 7 distinct USPS-recognized cities.
Population moved from 41,778 to 42,575 from 2014 to 2024 — a +1.9% change. 3 ZIPs gained residents, 4 lost.
The county's wealthiest ZIP 65337 (La Monte, $71,500 median) and poorest ZIP 65345 (Mora, $55,313) are 24.1 miles apart — a 1.3× income gap across local geography.
Median home values vary 2.1× across this county — from $115,600 in 65333 (Houstonia) to $243,500 in 65332 (Green Ridge).
Density varies 16× across the county — from 10 people/sq mi in 65333 (Houstonia) to 154 in 65301 (Sedalia).
Educational attainment ranges from 15.7% bachelor's+ in 65334 (Hughesville) to 24.1% in 65350 (Smithton) — the breadth of educational profiles across the area.
Within Missouri, this is the #26 most populous of 116 counties and ranks #50 for median household income .
Weighted by population, the typical household earns about $59,356 across the county — reflecting what a typical resident sees, not a simple ZIP average.
18.2% of adults age 25+ hold a bachelor's degree or higher (5,181 of 28,436 reporting).
7 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.
One ZIP holds the majority of this county's population — a sign of a county built around a single city or town.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 65301 | Sedalia | Standard | 35,091 | $58,064 | 227.6 | 2.9% |
| 65337 | La Monte | Standard | 1,952 | $71,500 | 88.5 | -9.4% |
| 65332 | Green Ridge | Standard | 1,949 | $66,750 | 79.8 | 25.0% |
| 65350 | Smithton | Standard | 1,455 | $60,509 | 59.2 | -10.6% |
| 65334 | Hughesville | Standard | 1,094 | $65,899 | 61.7 | 18.9% |
| 65333 | Houstonia | Standard | 658 | $59,208 | 68.7 | -7.3% |
| 65345 | Mora | Standard | 376 | $55,313 | 34.3 | -47.3% |
| 65302 | Sedalia | PO Box | — | — | 0.0 | — |