Butler County ZIP Codes
Iowa, United States · 12 codes
Butler County in Iowa has 12 ZIP codes, from 50602 to 50670, serving 12 places.
ZIP codes in Butler
Frequently asked questions
What is the ZIP code of Butler?
Butler has 12 ZIP codes, from 50602 to 50670. The table lists the places each one serves.
How many places are listed in Butler 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.