Crawfordsville is a city in Montgomery County in west central Indiana, United States, 49 miles (79 km) west by northwest of Indianapolis. As of the 2020 census, the city had a population of 16,306. The city is the county seat of Montgomery County, the only chartered city and the largest populated place in the county. It is the principal city of the Crawfordsville, IN Micropolitan Statistical Area, which encompasses all of Montgomery County. The city is also part of the Indianapolis–Carmel–Muncie, IN Combined Statistical Area.