Rockville is a town in Washington County, Utah, United States. It is located along the Virgin River near the mouth of Zion Canyon. The city lies just outside of the park boundary for Zion National Park; the park entrance is located approximately 5 miles (8 km) northeast of the town.
The town is the site of a historic steel truss bridge which spans the Virgin River. The bridge was built in 1924 and is one of the last surviving examples of a rigid Parker through truss bridge in the state of Utah.