ZIP Code 19735

19735 is one of Delaware's ZIP codes, delivering to addresses in Winterthur, New Castle County.

City: Winterthur
County: New Castle County
State: Delaware
Prefix: 197xx

Where this code sits

19735 is part of the 197xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Winterthur.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 19735 delivers to without sharing its boundary.

302 Area code 302

ZIP codes nearest 19735

The ZIP codes whose reference points sit closest to 19735.
ZIP code	Distance	Delivers to
ZIP code 19710	0.9 mi	Montchanin, DE
ZIP code 19732	1.1 mi	Rockland, DE
ZIP code 19807	1.4 mi	Wilmington, DE
ZIP code 19803	3.2 mi	Wilmington, DE
ZIP code 19806	3.5 mi	Wilmington, DE
ZIP code 19805	4.1 mi	Wilmington, DE
ZIP code 19317	4.3 mi	Chadds Ford, PA
ZIP code 19357	4.4 mi	Mendenhall, PA

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 19735, plotted from its record coordinates.

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

Scope ZIP code 19735. 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.