| Zip Code | City | Population ↓ |
|---|---|---|
| 75862 | Trinity | 10,017 |
| 75845 | Groveton | 2,262 |
| 75926 | Apple Springs | 1,301 |
| 75865 | Woodlake | 0 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 4 ZCTAs in Trinity County, Texas (US Census).