Galveston County, TX ZIP Codes & Directory
Complete postal guide for Galveston County, Texas. Featuring the official county seat of Galveston, largest municipality League City, and serving 3 incorporated municipal entities.
Municipalities Located in Galveston County
Incorporated Cities, Towns, and Villages
Active USPS Postal Codes in Galveston County
Standard delivery zones and geographic service boundaries
Frequently Asked Questions About Galveston County, TX
What is the county seat and largest city in Galveston County? ▾
The official county seat of Galveston County is Galveston, and its largest incorporated municipality by population is League City.
How many cities, towns, and villages are in Galveston County? ▾
Galveston County encompasses 3 incorporated municipal entities, including 3 cities, 0 towns, and 0 villages.
What is the total population and land area of Galveston County? ▾
According to official U.S. Census Bureau data, Galveston County has a population of approximately 350,682 residents and spans an area of 398 square miles.
How many postal codes operate in Galveston County? ▾
There are 2 active USPS postal codes serving addresses within Galveston County, Texas.