| ZIP Codes: | 7 ZIP Codes (7 Standard, 0 PO Box, 0 Unique) [See All] |
| Area Codes: | 660 / 816 / 975 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:12:41 PM |
| Population: | 9,107 [See All] |
| FIPS: | 29025 |
| CBSA: | Kansas City, MO-KS |
| Land Area: | 553 sq mi |
| Water Area: | 3 sq mi |
| Coordinates: | 39.6519, -93.9536 |
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9,107 residents live across 7 ZIPs covering 553 sq mi, served by 7 distinct USPS-recognized cities.
Population moved from 9,193 to 9,107 from 2014 to 2024 — a -0.9% change. 2 ZIPs gained residents, 5 lost.
The county's wealthiest ZIP 64671 (Polo, $75,455 median) and poorest ZIP 64625 (Breckenridge, $35,000) are 19.8 miles apart — a 2.2× income gap across local geography.
Median home values vary 3.5× across this county — from $64,300 in 64625 (Breckenridge) to $228,100 in 64649 (Kidder).
Density varies 4× across the county — from 7 people/sq mi in 64637 (Cowgill) to 26 in 64644 (Hamilton).
Educational attainment ranges from 9.2% bachelor's+ in 64625 (Breckenridge) to 25.1% in 64644 (Hamilton) — the breadth of educational profiles across the area.
Within Missouri, this is the #88 most populous of 116 counties and ranks #67 for median household income .
Weighted by population, the typical household earns about $65,074 across the county — reflecting what a typical resident sees, not a simple ZIP average.
18.3% of adults age 25+ hold a bachelor's degree or higher (1,150 of 6,299 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.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 64644 | Hamilton | Standard | 2,923 | $74,408 | 114.4 | -5.1% |
| 64671 | Polo | Standard | 1,986 | $75,455 | 90.2 | -1.5% |
| 64624 | Braymer | Standard | 1,489 | $58,095 | 125.7 | -11.9% |
| 64649 | Kidder | Standard | 814 | $67,216 | 38.6 | 39.1% |
| 64625 | Breckenridge | Standard | 738 | $35,000 | 64.8 | 41.7% |
| 64650 | Kingston | Standard | 665 | $45,441 | 45.6 | -7.0% |
| 64637 | Cowgill | Standard | 492 | $56,944 | 74.1 | -15.6% |