About This Place
Plainfield is a town in Guilford, Liberty and Washington townships, Hendricks County, Indiana, United States. The population was 27,631 at the 2010 census.
Plainfield is located at 39°41′51″N 86°23′5″W / 39.6975°N 86.38472°W / 39.6975; -86.38472 (39.697471, -86.384672).
According to the United States Census Bureau, the town has a total area of 18.0 square miles (46.7 km²), of which, 18.0 square miles (46.6 km²) of it is land and 0.1 square miles (0.1 km²) of it (0.28%) is water.