Delmont is an unincorporated community and census-designated place (CDP)[5] located within Maurice River Township, in Cumberland County, in the U.S. state of New Jersey.

[6] The area is served as United States Postal Service ZIP Code 08314.

The Ewing family was one of the first to settle in the area and a "neck" is a name often given to a stretch of higher ground surrounded by marshes and low-lands.

The New Jersey Department of Corrections Southern State Correctional Facility is in the Delmont area of the township.

[8][9][10] As of the 2020 United States census, the population for the area was 122.