Warren County, New Jersey

Mountain views, river towns, farmland and small-town charm — all within one New Jersey county.

In northwestern New Jersey, Warren County brings together mountain ridges, the Delaware River, historic downtowns, farmland and outdoor recreation. Its landscape runs in a series of ridges and fertile valleys from northeast to southwest, giving the county a rural setting with small-town character. Interstates 78 and 80 cross the county, linking it with metropolitan New Jersey and, across the Delaware, Pennsylvania.

Warren at a Glance

22 Municipalities

Three towns, two boroughs and 17 townships make up Warren County.
Mountains, Rivers & Recreation

Kittatinny Mountain, hiking and paddling in the Delaware Water Gap National Recreation Area, and the Musconetcong, Pequest and Paulinskill rivers.
Rural & Agricultural Landscape

Fertile valleys between the ridges, with more than 29,000 acres on 339 farms preserved through the county’s farmland program.

Explore Warren County

See all 22 municipalities on the map, then explore the highlighted towns, whose in-depth guides are coming soon.

Tap the map to see a municipality’s name.

Featured towns

Map data: U.S. Census Bureau

Hackettstown

Main Street shops and dining in the Musconetcong valley, and weekday NJ Transit trains on the Montclair-Boonton and Morris & Essex lines.

Town guide coming soon
Washington Borough

A crossroads downtown where Routes 31 and 57 meet, with shops and restaurants, a summer farmers market and Pohatcong Mountain close by.

Town guide coming soon
Phillipsburg

A historic river town on the Delaware, directly across from Easton, Pennsylvania, with Union Square, restaurants and an excursion railroad.

Town guide coming soon