Reaville is an unincorporated community located along the border of East Amwell and Raritan townships in Hunterdon County, New Jersey.

[3] In the 18th century, Reaville was a stop on the stagecoach route along the Old York Road.

[5] The Reaville Historic District is a 159-acre (64 ha) historic district encompassing the community along Old York, Amwell, Barley Sheaf, Kuhl, and Manners roads.

It was added to the National Register of Historic Places on May 2, 2002 for its significance in architecture, commerce, and community development.

The Amwell Presbyterian Church Parsonage was built in 1865 with Gothic Revival influences and features a diamond-shaped window with quatrefoil tracery.