ZIP Code 19904

19904 is one of Delaware's ZIP codes, delivering to addresses in Dover, Kent County.

City: Dover
County: Kent County
State: Delaware
Prefix: 199xx

Where this code sits

19904 is part of the 199xx range, the group of codes handled by one mail processing centre. Dover is served by 5 ZIP codes in total; the full list, with the county each falls in, is on the Dover page.

Dover Delaware ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 19904 delivers to without sharing its boundary.

302 Area code 302

ZIP codes nearest 19904

The ZIP codes whose reference points sit closest to 19904.
ZIP code	Distance	Delivers to
ZIP code 19906	3.7 mi	Dover, DE
ZIP code 19905	3.9 mi	Dover, DE
ZIP code 19936	4.1 mi	Cheswold, DE
ZIP code 19934	4.2 mi	Camden Wyoming, DE
ZIP code 19953	5.2 mi	Hartly, DE
ZIP code 19901	5.5 mi	Dover, DE
ZIP code 19955	5.7 mi	Kenton, DE
ZIP code 19980	6.2 mi	Woodside, DE

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 19904, plotted from its record coordinates.

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

Scope ZIP code 19904. 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.