DeKalb County ZIP Codes
Missouri, United States · 7 codes
DeKalb County in Missouri has 7 ZIP codes, from 64422 to 64497, serving 7 places.
ZIP codes in DeKalb
Frequently asked questions
What is the ZIP code of DeKalb?
DeKalb has 7 ZIP codes, from 64422 to 64497. The table lists the places each one serves.
How many places are listed in DeKalb County?
7 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.