The North Branch Historic District is a historic district located in North Branch, Somerset County, New Jersey. It is on the western side of the North Branch of the Raritan River in Branchburg Township. The district reflects the 18th and 19th century architecture of this agricultural community, once built around a mill on the North Branch. A main feature is the stone house of Jacob Ten Eyck, with its Georgian influences. The district was added to the National Register of Historic Places on April 16, 2012.