ZIP Code 22821

22821 is one of Virginia's ZIP codes, delivering to addresses in Dayton, Rockingham County.

City: Dayton
County: Rockingham County
State: Virginia
Prefix: 228xx

Where this code sits

22821 is part of the 228xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Dayton.

Dayton Virginia ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 22821 delivers to without sharing its boundary.

ZIP codes nearest 22821

The ZIP codes whose reference points sit closest to 22821.
ZIP code	Distance	Delivers to
ZIP code 22831	6.8 mi	Hinton, VA
ZIP code 22812	7.7 mi	Bridgewater, VA
ZIP code 22843	9.6 mi	Mount Solon, VA
ZIP code 22850	11 mi	Singers Glen, VA
ZIP code 22807	12 mi	Harrisonburg, VA
ZIP code 22801	12 mi	Harrisonburg, VA
ZIP code 22834	12 mi	Linville, VA
ZIP code 22803	12 mi	Harrisonburg, VA

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 22821, plotted from its record coordinates.

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

Scope ZIP code 22821. 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.