County ProfileMO
Buchanan County
Population: 84,793 · 13 ZIP codes
Demographics
Source: U.S. Census Bureau (ACS/Decennial). Estimates vary by year.
People
Total population
84,793
People
Median age
38.9
Housing
Total households
33,439
Income
Median household income
$62,158
Housing
Total housing units
38,472
Employment
Employment rate
57.7%
Education
Bachelor’s degree or higher
23.9%
Healthcare
Insured population
88.8%
County details
Local time 00:51:03(CT)| Name | Buchanan |
|---|---|
| Total ZIP codes | 13total |
| ZIP codes (by type) | 11 Standard2 PO Box |
| Area code | 816 |
| Timezone | Central Time (CT) |
| Coordinates | 39.6603695, -94.8081728 |
| Land area | 408.2 sq miles(1,057.4 km²) |
Map of Buchanan county, Missouri with ZIP codes
Cities and Communities in Buchanan County
Compare the largest cities in Buchanan County by population, median income, and growth. Use the table below to analyze key demographic shifts across the region.
— Data unavailable or suppressed by the U.S. Census Bureau for areas with small sample sizes to protect individual privacy.
ZIP Codes in Buchanan County
Review the most populated postal areas across Buchanan County. Use the ranking below to compare resident density and demographic scales between the county's major zones.
| ZIP | City | Median incomeHousehold | Population (ZIP) |
|---|---|---|---|
| 64506 | Saint Joseph | $65,573 | 22,828 |
| 64507 | Saint Joseph | $61,158 | 14,133 |
| 64505 | Saint Joseph | $73,298 | 13,261 |
| 64503 | Saint Joseph | $53,039 | 12,127 |
| 64501 | Saint Joseph | $46,731 | 11,020 |
| 64504 | Saint Joseph | $58,801 | 10,033 |
| 64401 | Agency | $99,398 | 1,525 |
| 64443 | Easton | $86,042 | 1,125 |
| 64448 | Faucett | $76,058 | 1,108 |
| 64484 | Rushville | $77,917 | 1,022 |
| 64440 | De Kalb | $94,306 | 757 |
| 64502 | Saint Joseph | — | — |
| 64508 | Saint Joseph | — | — |
Data Sources & Citations
The geographic and demographic information presented on this site is compiled from publicly available, authoritative sources, including:
- United States Census BureauDemographic, population, housing, and socioeconomic data sourced from Census Bureau datasets, including the Decennial Census and the American Community Survey (ACS).Census Data
- United States Postal Service (USPS)ZIP code classifications, delivery types, and postal designations used for reference purposes. USPS ZIP codes are intended for mail delivery and may not always align exactly with Census geographic boundaries.USPS