Adams County ZIP Codes
Iowa, United States · 4 codes
Adams County in Iowa has 4 ZIP codes, from 50839 to 50859, serving 4 places.
ZIP codes in Adams
Frequently asked questions
What is the ZIP code of Adams?
Adams has 4 ZIP codes, from 50839 to 50859. The table lists the places each one serves.
How many places are listed in Adams County?
4 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.