ZIP Code 28521

28521 is one of North Carolina's ZIP codes, delivering to addresses in Chinquapin, Duplin County.

City: Chinquapin
County: Duplin County
State: North Carolina
Prefix: 285xx

Where this code sits

28521 is part of the 285xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Chinquapin.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 28521 delivers to without sharing its boundary.

ZIP codes nearest 28521

The ZIP codes whose reference points sit closest to 28521.
ZIP code	Distance	Delivers to
ZIP code 28518	7.4 mi	Beulaville, NC
ZIP code 28574	10 mi	Richlands, NC
ZIP code 28466	11 mi	Wallace, NC
ZIP code 28454	12 mi	Maple Hill, NC
ZIP code 28458	14 mi	Rose Hill, NC
ZIP code 28349	15 mi	Kenansville, NC
ZIP code 28464	15 mi	Teachey, NC
ZIP code 28572	16 mi	Pink Hill, 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 28521, plotted from its record coordinates.

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

Scope ZIP code 28521. 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.