Jefferson County, TX ZIP Codes & Directory
Complete postal guide for Jefferson County, Texas. Featuring the official county seat of Beaumont, largest municipality Beaumont, and serving 2 incorporated municipal entities.
Municipalities Located in Jefferson County
Incorporated Cities, Towns, and Villages
Active USPS Postal Codes in Jefferson County
Standard delivery zones and geographic service boundaries
Frequently Asked Questions About Jefferson County, TX
What is the county seat and largest city in Jefferson County? ▾
The official county seat of Jefferson County is Beaumont, and its largest incorporated municipality by population is Beaumont.
How many cities, towns, and villages are in Jefferson County? ▾
Jefferson County encompasses 2 incorporated municipal entities, including 2 cities, 0 towns, and 0 villages.
What is the total population and land area of Jefferson County? ▾
According to official U.S. Census Bureau data, Jefferson County has a population of approximately 256,526 residents and spans an area of 904 square miles.
How many postal codes operate in Jefferson County? ▾
There are 2 active USPS postal codes serving addresses within Jefferson County, Texas.