County Postal Hub • FIPS 48131
Duval County, TX ZIP Codes & Directory
Complete postal guide for Duval County, Texas. Featuring the official county seat of San Diego, largest municipality San Diego, and serving 2 incorporated municipal entities.
County Seat San Diego
Total Population 9,831
Land Area 1,793 sq mi
FIPS Code 48131
Municipalities Located in Duval County
Incorporated Cities, Towns, and Villages
2 Cities
0 Towns
Active USPS Postal Codes in Duval County
Standard delivery zones and geographic service boundaries
Frequently Asked Questions About Duval County, TX
What is the county seat and largest city in Duval County? ▾
The official county seat of Duval County is San Diego, and its largest incorporated municipality by population is San Diego.
How many cities, towns, and villages are in Duval County? ▾
Duval County encompasses 2 incorporated municipal entities, including 2 cities, 0 towns, and 0 villages.
What is the total population and land area of Duval County? ▾
According to official U.S. Census Bureau data, Duval County has a population of approximately 9,831 residents and spans an area of 1,793 square miles.
How many postal codes operate in Duval County? ▾
There are 1 active USPS postal codes serving addresses within Duval County, Texas.