Pittstown is an unincorporated community located at the intersection of the boundaries of Alexandria, Franklin and Union townships in Hunterdon County, New Jersey.

The area is served as United States Postal Service ZIP Code 08867.

As of the 2010 United States Census, the population for ZIP Code Tabulation Area (ZCTA) 08867 was 5,042.

It was added to the National Register of Historic Places on October 11, 1990 for its significance in agriculture, architecture, settlement, industry, transportation, and military history.

[9] People who were born in, residents of, or otherwise closely associated with Pittstown include: Alexandria Airport is located 2 statute miles (3 km) west of the central business district.