Lolo is a census-designated place (CDP) in Missoula County, Montana, United States. It is part of the 'Missoula, Montana Metropolitan Statistical Area'. The population was 3,388 at the 2000 census. It is home to Travelers' Rest State Park, a site where Lewis and Clark camped in 1805 and again in 1806. It is one of the few sites in the nation with physical confirmation of their visit.
Lolo is located at 46°45′55″N 114°5′9″W / 46.76528°N 114.08583°W / 46.76528; -114.08583 (46.765210, -114.085892). The town lies at the junction of U.S. 12 and U.S. 93, and at the eastern end of the Lolo Trail.
According to the United States Census Bureau, the CDP has a total area of 9.7 square miles (25.2 km²), of which, 9.5 square miles (24.6 km²) of it is land and 0.2 square miles (0.5 km²) of it (2.16%) is water.