Plainfield is a town in Guilford, Liberty, and Washington townships, Hendricks County, Indiana, United States.

[5] In 1822, a tract of land which included the area now known as Plainfield was obtained by Jeremiah Hadley of Preble County, Ohio.

One incident which brought Plainfield national attention occurred in 1842 when former President Martin Van Buren was spilled deliberately from his stagecoach into the thick mud of the highway.

The practical joke came as a result of Van Buren's vetoing a bill from Congress to improve the highway, a move which angered Western settlers.

When Van Buren came through Plainfield on a swing to shore up his popularity for the 1844 election, a group of perpetrators set up the incident.

There are few moderately sized hills, and a mix of deciduous forests and prairie covers much of the area within the town limits.

[21][22] Hummel Park is a 205-acre (83 ha) park that features sports venues, basketball and volleyball courts, baseball diamonds, nature trails, fishing lakes, an amphitheater, and a 300-foot (91 m) wooden bridge across White Lick Creek.

[23] Plainfield is home to an Ivy Tech Community College satellite location that is associated with the Indianapolis main campus.

The Central Indiana Regional Transportation Authority operates a commuter bus serving major employers in the town.