ZIP Code 19973

19973 is one of Delaware's ZIP codes, delivering to addresses in Seaford, Sussex County.

City: Seaford
County: Sussex County
State: Delaware
Prefix: 199xx

Where this code sits

19973 is part of the 199xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Seaford.

Seaford Delaware ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 19973 delivers to without sharing its boundary.

302 Area code 302

ZIP codes nearest 19973

The ZIP codes whose reference points sit closest to 19973.
ZIP code	Distance	Delivers to
ZIP code 19931	5.1 mi	Bethel, DE
ZIP code 19956	6.4 mi	Laurel, DE
ZIP code 19933	6.7 mi	Bridgeville, DE
ZIP code 21861	9.4 mi	Sharptown, MD
ZIP code 21659	9.6 mi	Rhodesdale, MD
ZIP code 21632	11 mi	Federalsburg, MD
ZIP code 19940	11 mi	Delmar, DE
ZIP code 19947	12 mi	Georgetown, 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 19973, plotted from its record coordinates.

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

Scope ZIP code 19973. 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.