ZIP Code 07820

07820 is one of New Jersey's ZIP codes, delivering to addresses in Allamuchy, Warren County.

City: Allamuchy
County: Warren County
State: New Jersey
Prefix: 078xx

Where this code sits

07820 is part of the 078xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Allamuchy.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 07820 delivers to without sharing its boundary.

908 Area code 908

ZIP codes nearest 07820

The ZIP codes whose reference points sit closest to 07820.
ZIP code	Distance	Delivers to
ZIP code 07879	2.6 mi	Tranquility, NJ
ZIP code 07839	3.7 mi	Greendell, NJ
ZIP code 07821	4.1 mi	Andover, NJ
ZIP code 07846	4.6 mi	Johnsonburg, NJ
ZIP code 07828	4.9 mi	Budd Lake, NJ
ZIP code 07840	4.9 mi	Hackettstown, NJ
ZIP code 07874	5.7 mi	Stanhope, NJ
ZIP code 07880	6.0 mi	Vienna, 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 07820, plotted from its record coordinates.

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

Scope ZIP code 07820. 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.