There are 13 zip codes in Onslow County, North Carolina. The most populated is 28540, located in Jacksonville. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
2854050,207Jacksonville
2854647,841Jacksonville
2857419,987Richlands
2854719,509Camp Lejeune
2853918,258Hubert
2846011,666Sneads Ferry
284459,675Holly Ridge
285436,841Tarawa Terrace
285555,349Maysville
285445,179Midway Park
285423,348Camp Lejeune
284542,769Maple Hill
285821,750Stella

Zip Codes in Onslow County, North Carolina by Population (2024)