Mount Airy is an unincorporated community located within West Amwell Township in Hunterdon County, in the U.S. state of New Jersey.

By 1881, Mount Airy had a school, store, church, wagon and blacksmith shop, grist-mill, and about 12 dwellings.

It was added to the National Register of Historic Places on November 13, 1989, for its significance in architecture, commerce, industry, and settlement.

The Old Mount Airy Tavern was built in the late 18th century and was a stage coach stop on the Old York Road.

Holcombe's Storehouse is a late 18th century two and one-half story coursed rubble stone building with overhanging hoist.