Postal reference / United States

28540Jacksonville, North Carolina

ZIP code 28540 is a United States postal code for Jacksonville, North Carolina. Its county association is Onslow County. The map reference point is at 34.7375, -77.4628.

State / territory
North Carolina
Recorded place name
Jacksonville
County association
Onslow
Estimated coordinate
34.7375, -77.4628
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ZIP prefix
285 · 71 ZIP codes share it
Data source
GeoNames postal reference, snapshot September 26, 2026

GeoNames reference data. County associations may not include every intersecting county, place names are postal names rather than legal boundaries, and coordinates are approximate. This is not address validation.

Area

Land area
110.313 sq mi (2023 Census Gazetteer)

Figures are for the ZIP Code Tabulation Area (ZCTA) that most closely matches this ZIP code, not an exact match to USPS delivery boundaries. Source: U.S. Census Bureau, 2023 Gazetteer + 2023 ACS 5-Year Estimates, retrieved 2026-09-27. How to read this data.

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Other ZIP codes in Jacksonville, NC

Jacksonville has 3 ZIP codes in the reference dataset.

Nearby ZIP code reference points

ZIP codePlaceStateCounty associationMiles
28543Tarawa TerraceNCOnslow4.5
28542Camp LejeuneNCOnslow5.1
28541JacksonvilleNCOnslow5.1
28545Mccutcheon FieldNCOnslow5.1
28546JacksonvilleNCOnslow5.4
28547Camp LejeuneNCOnslow6.6
28544Midway ParkNCOnslow8.1
28574RichlandsNCOnslow11.1

Straight-line distance between reference points. Nearby points do not prove that ZIP areas touch.

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