Willacy County ZIP Codes
Texas, United States · 7 codes
Willacy County in Texas has 7 ZIP codes, from 78561 to 78598, serving 7 places.
ZIP codes in Willacy
Frequently asked questions
What is the ZIP code of Willacy?
Willacy has 7 ZIP codes, from 78561 to 78598. The table lists the places each one serves.
How many places are listed in Willacy 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.