Union County ZIP Codes
South Carolina, United States · 6 codes
Union County in South Carolina has 6 ZIP codes, from 29031 to 29395, serving 6 places.
ZIP codes in Union
Frequently asked questions
What is the ZIP code of Union?
Union has 6 ZIP codes, from 29031 to 29395. The table lists the places each one serves.
How many places are listed in Union County?
6 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.