ZIP Code 10603

10603 is one of New York's ZIP codes, delivering to addresses in White Plains, Westchester County.

City: White Plains
County: Westchester County
State: New York
Prefix: 106xx

Where this code sits

10603 is part of the 106xx range, the group of codes handled by one mail processing centre. White Plains is served by 7 ZIP codes in total; the full list, with the county each falls in, is on the White Plains page.

White Plains New York ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 10603 delivers to without sharing its boundary.

914 Area code 914

ZIP codes nearest 10603

The ZIP codes whose reference points sit closest to 10603.
ZIP code	Distance	Delivers to
ZIP code 10601	1.3 mi	White Plains, NY
ZIP code 10602	1.3 mi	White Plains, NY
ZIP code 10606	1.7 mi	White Plains, NY
ZIP code 10607	1.9 mi	White Plains, NY
ZIP code 10523	1.9 mi	Elmsford, NY
ZIP code 10604	2.1 mi	West Harrison, NY
ZIP code 10595	2.5 mi	Valhalla, NY
ZIP code 10530	2.6 mi	Hartsdale, NY

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 10603, plotted from its record coordinates.

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

Scope ZIP code 10603. 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.