Buchanan County ZIP Codes
Missouri, United States · 12 codes
Buchanan County in Missouri has 12 ZIP codes, from 64401 to 64508, serving 12 places.
ZIP codes in Buchanan
Frequently asked questions
What is the ZIP code of Buchanan?
Buchanan has 12 ZIP codes, from 64401 to 64508. The table lists the places each one serves.
How many places are listed in Buchanan County?
12 places.
Source: GeoNames postal codes (CC BY 4.0), geonames.org, retrieved 2026-10-22. Place coordinates are approximate. Check with the national postal service before sending anything valuable.