ZIP Code 28756

28756 is one of North Carolina's ZIP codes, delivering to addresses in Mill Spring, Polk County.

City: Mill Spring
County: Polk County
State: North Carolina
Prefix: 287xx

Where this code sits

28756 is part of the 287xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Mill Spring.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 28756 delivers to without sharing its boundary.

828 Area code 828

ZIP codes nearest 28756

The ZIP codes whose reference points sit closest to 28756.
ZIP code	Distance	Delivers to
ZIP code 28722	6.0 mi	Columbus, NC
ZIP code 28746	7.9 mi	Lake Lure, NC
ZIP code 28750	8.1 mi	Lynn, NC
ZIP code 28720	8.6 mi	Chimney Rock, NC
ZIP code 28782	9.4 mi	Tryon, NC
ZIP code 28139	10 mi	Rutherfordton, NC
ZIP code 28710	11 mi	Bat Cave, NC
ZIP code 28727	11 mi	Edneyville, 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 28756, plotted from its record coordinates.

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

Scope ZIP code 28756. 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.