ZIP Code 08604

08604 is one of New Jersey's ZIP codes, delivering to addresses in Trenton, Mercer County.

City: Trenton
County: Mercer County
State: New Jersey
Prefix: 086xx

Where this code sits

08604 is part of the 086xx range, the group of codes handled by one mail processing centre. Trenton is served by 27 ZIP codes in total; the full list, with the county each falls in, is on the Trenton page.

Trenton New Jersey ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 08604 delivers to without sharing its boundary.

ZIP codes nearest 08604

The ZIP codes whose reference points sit closest to 08604.
ZIP code	Distance	Delivers to
ZIP code 08543	0.0 mi	Princeton, NJ
ZIP code 08601	0.0 mi	Trenton, NJ
ZIP code 08602	0.0 mi	Trenton, NJ
ZIP code 08603	0.0 mi	Trenton, NJ
ZIP code 08605	0.0 mi	Trenton, NJ
ZIP code 08606	0.0 mi	Trenton, NJ
ZIP code 08607	0.0 mi	Trenton, NJ
ZIP code 08625	0.0 mi	Trenton, NJ

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 08604, plotted from its record coordinates.

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

Scope ZIP code 08604. 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.