  Texas US Highway markers | |
| Highway names | |
|---|---|
| Interstates | Interstate X (I-X) Interstate Highway X (IH-X) |
| US Highways | U.S. Highway X (US X) |
| State | State Highway X (SH X) |
| Loops: | Loop X |
| Spurs: | Spur X |
| Recreational: | Recreational Road X (RE X) |
| Farm or Ranch to Market Roads: | Farm to Market Road X (FM X) Ranch to Market Road X (RM X) |
| Park Roads: | Park Road X (PR X) |
| System links | |
U.S. Highways in Texas are owned and maintained by the state. These U.S. Highways are the second-highest category of road classifications in the Texas road system, just below the Interstate Highways. U.S. Highways are marked with a number contained inside a white shield in a black box. The number is generally even if the highway runs east–west, and generally odd if it runs north–south, though there are many substantial deviations from this plan.