ZIP Code 08556

08556 is one of New Jersey's ZIP codes, delivering to addresses in Rosemont, Hunterdon County.

City: Rosemont
County: Hunterdon County
State: New Jersey
Prefix: 085xx

Where this code sits

08556 is part of the 085xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Rosemont.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 08556 delivers to without sharing its boundary.

ZIP codes nearest 08556

The ZIP codes whose reference points sit closest to 08556.
ZIP code	Distance	Delivers to
ZIP code 08559	2.2 mi	Stockton, NJ
ZIP code 18963	2.9 mi	Solebury, PA
ZIP code 08557	3.0 mi	Sergeantsville, NJ
ZIP code 18950	4.1 mi	Point Pleasant, PA
ZIP code 18938	4.5 mi	New Hope, PA
ZIP code 18913	4.5 mi	Carversville, PA
ZIP code 08530	4.6 mi	Lambertville, NJ
ZIP code 18947	6.3 mi	Pipersville, 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 08556, plotted from its record coordinates.

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

Scope ZIP code 08556. 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.