Castro County ZIP Codes
Texas, United States · 4 codes
Castro County in Texas has 4 ZIP codes, from 79027 to 79085, serving 4 places.
ZIP codes in Castro
Frequently asked questions
What is the ZIP code of Castro?
Castro has 4 ZIP codes, from 79027 to 79085. The table lists the places each one serves.
How many places are listed in Castro 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.