Holly Ridge is a town in Onslow County, North Carolina, United States. The 2010 population was 1,268. The 2020 census population was 4,171. The town's largest employer is J&J Snack Foods. Industrial growth is strengthening with the growth of the Camp Davis Industrial Park which resides on the same land that Camp Davis had occupied. The industr…Holly Ridge is a town in Onslow County, North Carolina, United States. The 2010 population was 1,268. The 2020 census population was 4,171. The town's largest employer is J&J Snack Foods. Industrial growth is strengthening with the growth of the Camp Davis Industrial Park which resides on the same land that Camp Davis had occupied. The industrial park's largest tenants are Gulfstream Steel and Onslow Bay Boatworks. Atlantic Seafood is planning a 63,000 square foot facility with construction slated to begin in 2021. Plans for developing an additional 60 acres is underway with hopes to have shovel ready lots available for purchase in 2023.