Onslow County ZIP Codes
Onslow County is a county of North Carolina.
- ZIP codes
- 13
- Cities & towns
- 10
- Area codes
- 3
- Land area
- 762 sq mi
Every ZIP code in Onslow County
| ZIP code | City |
|---|---|
| 28445 | Holly Ridge |
| 28460 | Sneads Ferry |
| 28539 | Hubert |
| 28540 | Jacksonville |
| 28541 | Jacksonville |
| 28542 | Camp Lejeune |
| 28543 | Tarawa Terrace |
| 28544 | Midway Park |
| 28545 | Mccutcheon Field |
| 28546 | Jacksonville |
| 28547 | Camp Lejeune |
| 28574 | Richlands |
| 28584 | Swansboro |
We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Onslow County codes above are listed without a column we would have to invent.
Cities and towns in Onslow County
A further 6 places in Onslow County appear in the postal source without a page of its own; their codes are in the table above and each one links to its own page.
Area codes covering Onslow County
Telephone and postal boundaries are drawn by different bodies, so these codes overlap the county without matching its edges.
Where Onslow County's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Scope every ZIP code recorded in Onslow County. Source GeoNames US postal codes (2026-07 postal dump), Census 2024 county Gazetteer (2024 Gazetteer) and geoinfo-dataset (full_dataset) ZIP→NPA (2018 snapshot). Updated . The outline is a convex envelope of ZIP reference points, not a jurisdiction boundary.