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Where am ILOCATED

Buchanan County, Missouri

Buchanan County, Missouri, has 83,540 residents (July 2025 estimate). Its county seat is St. Joseph. It uses Central Time and covers 408 sq mi (1,057 km²) of land.

Kansas CitySt. LouisSpringfield
Buchanan County in Missouri
Doniphan CountySt. JosephGowerAgencyDe Kalb
Buchanan County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
83,540
Land area
408 sq mi (1,057 km²)
County seat or government
St. Joseph
Time zone
Central TimeUTC-06:00 in January; UTC-05:00 in July
Median household income
$62,158 ± $2,788
Median home value
$166,300 ± $4,684
Median rent, with utilities
$902 ± $28
Homes lived in by their owners
66.3% ± 1.5 points
County type
County
Metro or micro area
St. Joseph, MO-KS metro areaCentral county
Water area
6.93 sq mi (17.9 km²)
State
Missouri
County code (FIPS)
29021
Coordinates (central point)
39.660369, -94.808173
Open this point in the location finder

These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.

Time zones in Buchanan County

Time zoneLocal time and UTC offsetNext clock change
Central TimeAmerica/ChicagoUTC-06:00 in January; UTC-05:00 in July. Enable JavaScript for the live clock.Enable JavaScript for upcoming changes.

Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.

ZIP Code areas, largest first

  1. 6450621,461 people
  2. 6450514,107 people
  3. 6450713,991 people
  4. 6450311,954 people
  5. 6450110,689 people
  6. 6450410,068 people
  7. 644542,941 people
  8. 644901,939 people
  9. 644011,757 people
  10. 644391,537 people
  11. 644431,249 people
  12. 644441,043 people
All 15
  1. 64484940 people
  2. 64448912 people
  3. 64440900 people

15 ZIP Code areas overlap Buchanan County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.

Official county information

We don’t have a website for this county yet. The US government’s local-office directory ↗ lists its offices. A geographic lookup cannot determine eligibility, tax liability or a court obligation.

Townships in Buchanan County, largest first

  1. Washington Township73,309 people
  2. Center Township2,710 people
  3. Agency Township1,434 people
  4. Marion Township1,158 people
  5. Wayne Township957 people
  6. Tremont Township819 people
  7. Bloomington Township770 people
  8. Crawford Township752 people
  9. Rush Township603 people
  10. Platte Township526 people
  11. Jackson Township474 people
  12. Lake Township56 people

People counts are American Community Survey 2020–2024 5-year estimates. All townships in Missouri, by county

School districts in Buchanan County, largest first

  1. St. Joseph School District74,701 people
  2. East Buchanan County C-1 School District4,560 people
  3. Mid-Buchanan County R-V School District4,319 people
  4. North Platte County R-I School District4,179 people
  5. Buchanan County R-IV School District2,106 people

Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.

Cities, towns and communities, largest first

These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.

  1. St. Joseph, Missouri (city)71,236 people
  2. Gower, Missouri (city)1,799 people
  3. Agency, Missouri (village)871 people
  4. Dearborn, Missouri (city)557 people
  5. De Kalb, Missouri (town)518 people
  6. Easton, Missouri (city)336 people
  7. Rushville, Missouri (village)260 people
  8. Faucett, Missouri (CDP)114 people
  9. Lewis and Clark Village, Missouri (town)101 people

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Platte County, Missouri20 mi south
  2. Doniphan County, Kansas20 mi northwest
  3. Clinton County, Missouri22 mi east
  4. Andrew County, Missouri23 mi north
  5. DeKalb County, Missouri27 mi northeast
  6. Atchison County, Kansas28 mi west

Before using this answer on a form

Use a precise point for address-level questions. A device accuracy circle can cross a boundary; confirm tax, voting or jury details with the responsible office.

Find the county where you are now, check its ZIP area, or check the time zone where you are.

See this county on Census.gov ↗

Areas that only touch the edge

These areas meet the boundary only along a sliver. Most addresses here are not in them; for an address near the line, check with the county.