Harbourton is an unincorporated community located within Hopewell Township in Mercer County, in the U.S. state of New Jersey. It is located along County Route 579 at the intersection with Harbourton-Mount Airy Road. The Harbourton Historic District, encompassing the community, was listed on the state and national registers of historic places in 1974.

Harbourton Historic District
U.S. National Register of Historic Places
U.S. Historic district
New Jersey Register of Historic Places
Location	Junction of Harbourton/Rocktown and Harbourton/Mt. Airy Roads
Area	7 acres (2.8 ha)
Architectural style	Carpenter Gothic
NRHP reference No.	74001167
NJRHP No.	1683
Significant dates
Added to NRHP	December 31, 1974
Designated NJRHP	October 25, 1974

The Harbourton Historic District is a 7-acre (2.8 ha) historic district encompassing the community around the junction of Harbourton/Rocktown and Harbourton/Mt. Airy Roads. It was added to the National Register of Historic Places on December 31, 1974 for its significance in agriculture, architecture, and commerce. The district includes seven contributing buildings. The oldest section of the village store was built in 1768, and operated as a store until 1962. It is now a private residence. The Baptist Church features Carpenter Gothic architecture.

All of Hopewell Township, including Harbourton, is served by the Hopewell Valley Regional School District.

• National Register of Historic Places listings in Mercer County, New Jersey

• Media related to Harbourton, New Jersey at Wikimedia Commons
• "Village Store". The Historical Marker Database.