Centerville is a census-designated place (CDP) in Cascade County, Montana, United States. It is in the east-central part of the county, in the valley of Cottonwood Creek where it joins Sand Coulee Creek, a north-flowing tributary of the Missouri River. Centerville lies along Secondary Highway 227, 2.5 miles (4.0 km) north of Stockett and 2 miles (3 km) south of Tracy. It is 14 miles (23 km) southeast of Great Falls via Highway 227 and U.S. Route 87.