Texas State Highway Loop 121
| Route information | ||||
|---|---|---|---|---|
| Maintained by TxDOT | ||||
| Length | 5.961 mi (9.593 km) | |||
| Existed | October 31, 1958–present | |||
| Major junctions | ||||
| West end | FM 439 in Belton | |||
| East end | FM 436 in Belton | |||
| Location | ||||
| Country | United States | |||
| State | Texas | |||
| Highway system | ||||
| ||||
Loop 121 is a partial beltway around the city of Belton in the U.S. state of Texas.