Route 24, or Highway 24, can refer to:
State Highway 24 (SH-24) is a highway maintained by the U.S. state of Oklahoma. It runs for 21.1 miles (34.0 km) through central Oklahoma, almost entirely within McClain County. It is signed north–south and has no lettered spur routes.
SH-24 was designated in 1936, and originally extended southward into Garvin County to an intersection with SH-19 between Maysville and Lindsay. By 1950, its southern terminus had been moved to its current location, while a new bridge near Washington caused a realignment of the highway in the early 1990s.
The highway begins where State Highway 74 crosses the McClain–Garvin County line, about three miles (5 km) north of Maysville. From here, SH-24 runs west along the county line for three miles (5 km), where it turns due north in the unincorporated community of Storey. It has a brief, one-mile (1.6 km) concurrency with SH-59 east of Payne. After this, the road turns west again and returns to a due north course before intersecting SH-39 in the unincorporated town of Woody Chapel.
Idaho State Highway 24 (SH 24) is a 67.5 mi (108.6 km) long state highway in Idaho that runs east west from Shoshone, Idaho on the far west to Minidoka and Acequia on the far east.
SH 24 begins at I-84 near Rupert. It passes Dietrich, Owinza, and Kimima and runs approximately 20 miles (32 km) north of Paul and Burley and 15 north of Rupert. The highway ends at U.S. Highway 93 in Shoshone. It also runs parallel to U.S. Highway 30 and Interstate 84 20 miles (32 km) south, and is parallel to a major Union Pacific railroad line as well.