Port Murray is an unincorporated community and census-designated place (CDP)[10] located within Mansfield Township in Warren County, in the U.S. state of New Jersey, that was created as part of the 2010 United States Census.

[16] The area is served as United States Postal Service ZIP Code 07865.

[1][2] As of the 2000 United States Census, the population for ZIP Code Tabulation Area 07865 was 2,010.

[18] The 2010 United States census counted 129 people, 57 households, and 39 families in the CDP.

[15] Port Murray had a station on the Morris and Essex Railroad, located 67 miles (108 km) west of New York City.