| Place Name | Fentress |
| Place Type | Unincorporated |
| ZIP Code(s) | 78638 |
| County | Caldwell County |
| Area Code(s) | 512,737 |
| Timezone | Central Standard Time (CST) |
| Population () | |
| Metro/Micro Stats Area | Austin-Round Rock-Georgetown, TX |
| US Congressional District(s) | Texas 27th |
| State House Districts | 17 |
| State Senate Districts | 21 |