ZIP Code 28778

28778 is one of North Carolina's ZIP codes, delivering to addresses in Swannanoa, Buncombe County.

City: Swannanoa
County: Buncombe County
State: North Carolina
Prefix: 287xx

Where this code sits

28778 is part of the 287xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Swannanoa.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 28778 delivers to without sharing its boundary.

828 Area code 828

ZIP codes nearest 28778

The ZIP codes whose reference points sit closest to 28778.
ZIP code	Distance	Delivers to
ZIP code 28805	4.9 mi	Asheville, NC
ZIP code 28757	5.4 mi	Montreat, NC
ZIP code 28814	5.8 mi	Asheville, NC
ZIP code 28770	6.0 mi	Ridgecrest, NC
ZIP code 28730	6.3 mi	Fairview, NC
ZIP code 28711	6.7 mi	Black Mountain, NC
ZIP code 28810	6.8 mi	Asheville, NC
ZIP code 28815	6.8 mi	Asheville, 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 28778, plotted from its record coordinates.

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

Scope ZIP code 28778. 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.