Buchanan County, Missouri

Buchanan County profile, demographic data, and geographic information.

Local Government & Public Administration

Authoritative general-purpose local government units serving this area U.S. Census Bureau GUS (2026) / GMAF

Government Unit	Unit Type	Jurisdiction Role	Contact / Address
COUNTY OF BUCHANAN GUS Population: 83,574 (2024) ID: 168726	County	Official County Government	Contact: PRESIDING COMMISSIONER 411 JULES ST, STE 122, SAINT JOSEPH MO 64501-1729
CITY OF ST JOSEPH GUS Population: 71,098 (2024) ID: 212058	Municipal	Municipal Government Within County	Contact: CITY MANAGER 1100 FREDERICK AVE, SAINT JOSEPH MO 64501-2337
VILLAGE OF AGENCY GUS Population: 653 (2024) ID: 129459	Municipal	Municipal Government Within County	Contact: CLERK PO BOX 34, AGENCY MO 64401-0034
CITY OF DE KALB GUS Population: 239 (2024) ID: 168812	Municipal	Municipal Government Within County	Contact: MAYOR PO BOX 104, DE KALB MO 64440-0104
CITY OF EASTON GUS Population: 226 (2024) ID: 168813	Municipal	Municipal Government Within County	Contact: CITY CLERK PO BOX 75, EASTON MO 64443-0075
TOWN OF RUSHVILLE GUS Population: 218 (2024) ID: 107589	Municipal	Municipal Government Within County	Contact: CHAIRMAN PO BOX 187, RUSHVILLE MO 64484-0187
VILLAGE OF LEWIS AND CLARK GUS Population: 92 (2024) ID: 138841	Municipal	Municipal Government Within County	Contact: MAYOR 101 LAKESHORE DR, RUSHVILLE MO 64484-9532