ZIP Code 28584

28584 is one of North Carolina's ZIP codes, delivering to addresses in Swansboro, Onslow County.

City: Swansboro
County: Onslow County
State: North Carolina
Prefix: 285xx

Where this code sits

28584 is part of the 285xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Swansboro.

Swansboro North Carolina ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 28584 delivers to without sharing its boundary.

ZIP codes nearest 28584

The ZIP codes whose reference points sit closest to 28584.
ZIP code	Distance	Delivers to
ZIP code 28539	4.1 mi	Hubert, NC
ZIP code 28582	5.4 mi	Stella, NC
ZIP code 28594	6.6 mi	Emerald Isle, NC
ZIP code 28544	11 mi	Midway Park, NC
ZIP code 28547	13 mi	Camp Lejeune, NC
ZIP code 28555	13 mi	Maysville, NC
ZIP code 28570	14 mi	Newport, NC
ZIP code 28575	14 mi	Salter Path, NC

Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.

Each point is the reference point for 28584, plotted from its record coordinates.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Scope ZIP code 28584. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.