Trinity County Post Offices

15799 N State Highway 94
Apple Springs, Texas 75926

100 Fm 357
Centralia, Texas 75834

147 E 2nd St
Groveton, Texas 75845

6552 Fm 2781
Pennington, Texas 75856

116 W Main St
Trinity, Texas 75862

5923 E Us Highway 287
Woodlake, Texas 75865

Trinity County

There are 6 US Post Offices in Trinity County serving a total of 14,616 residents equating to 2,436 residents per post office. It's estimated that approximately 23,329 packages are handled across the 6 county post offices annually. Trinity County is a county located in the U.S. state of Texas. As of the 2010 census, the population was 14,585. Its county seat is Groveton. The county is named for the Trinity River. Trinity County is included in the Huntsville, TX Micropolitan Statistical Area, which is also included in the Houston-The Woodlands, TX Combined Statistical Area.