Piney Green is a census-designated place (CDP) in Onslow County, North Carolina, United States.

As of the 2020 United States census, there were 14,386 people, 4,742 households, and 3,430 families residing in the CDP.

At the 2000 census,[3] there were 148,658 people, 4,202 households, and 3,193 families residing in the CDP.

There were 4,671 housing units at an average density of 348.1 per square mile (134.4/km2).

17.8% of all households were made up of individuals, and 2.7% had someone living alone who was 65 years of age or older.