| ZIP Codes: | 7 ZIP Codes (7 Standard, 0 PO Box, 0 Unique) [See All] |
| Area Code: | 660 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:12:42 PM |
| Population: | 16,488 [See All] |
| FIPS: | 29053 |
| CBSA: | Columbia, MO |
| Land Area: | 550 sq mi |
| Water Area: | 5 sq mi |
| Coordinates: | 38.8478, -92.7828 |
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16,488 residents live across 7 ZIPs covering 550 sq mi, served by 7 distinct USPS-recognized cities.
Population moved from 17,604 to 16,488 from 2014 to 2024 — a -6.3% change. 3 ZIPs gained residents, 4 lost.
The county's wealthiest ZIP 65287 (Wooldridge, $94,143 median) and poorest ZIP 65348 (Otterville, $52,125) are 28.5 miles apart — a 1.8× income gap across local geography.
Median home values vary 1.7× across this county — from $124,400 in 65237 (Bunceton) to $210,400 in 65233 (Boonville).
Density varies 10× across the county — from 8 people/sq mi in 65237 (Bunceton) to 76 in 65233 (Boonville).
Educational attainment ranges from 12.3% bachelor's+ in 65348 (Otterville) to 28.2% in 65322 (Blackwater) — the breadth of educational profiles across the area.
Within Missouri, this is the #62 most populous of 116 counties and ranks #26 for median household income .
Weighted by population, the typical household earns about $68,751 across the county — reflecting what a typical resident sees, not a simple ZIP average.
23.1% of adults age 25+ hold a bachelor's degree or higher (2,660 of 11,514 reporting).
7 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.
Cooper County lost 6.3% of residents between 2014 and 2024. ZIPs that shed the largest share:
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 65233 | Boonville | Standard | 10,640 | $68,320 | 139.4 | -9.1% |
| 65276 | Pilot Grove | Standard | 1,777 | $78,958 | 101.6 | 8.6% |
| 65348 | Otterville | Standard | 1,419 | $52,125 | 67.9 | -11.9% |
| 65068 | Prairie Home | Standard | 893 | $61,667 | 47.0 | 4.8% |
| 65237 | Bunceton | Standard | 763 | $76,389 | 100.1 | -0.8% |
| 65322 | Blackwater | Standard | 706 | $73,250 | 67.9 | 16.3% |
| 65287 | Wooldridge | Standard | 290 | $94,143 | 26.0 | -32.4% |