The Crompton Mill Historic District is a historic district encompassing a mill complex at 20 Remington Street, 53 and 65 Manchester Street in West Warwick, Rhode Island. The mill complex consists of a collection of mainly brick buildings, bounded by the Pawtuxet River and Pulaski, Remington, and Manchester Streets in the village of Crompton. The mill complex formerly extended across the river, but the complex on the west bank was destroyed by fire in 1992. The oldest elements of the complex are the dam site and some of the raceways that provided water power to the mills. The present dam was built in 1908, replacing an 1882 structure. The raceways were built in 1807, around the time of the first mill buildings. The stone Mill No. 1, built 1807, is believed to be the oldest stone mill buildi