Cliffwood is an unincorporated community located within Aberdeen Township in Monmouth County, New Jersey, United States.

[3] The area is served as United States Postal Service ZIP code 07721.

As of the 2010 United States Census, the population for ZIP Code Tabulation Area 07721 was 2,974.

[2] Cliffwood is located southwest of Route 35 and is bounded by Matawan on the south and Old Bridge Township on the northwest.

On January 26, 1855, tobacco magnate David Hunter McAlpin sold 0.5 acres (0.20 ha) of land for $50.00 to the Trustees of the Matavan School District No.