Phillipsburg is a town located along the Delaware River that is the most populous municipality in Warren County, in the U.S. state of New Jersey.

The town grew from a sleepy agricultural village (in 1824), and was transformed into a transportation hub and shipping center as the Delaware River terminus of the Morris Canal (1829–1924), with operations commencing in 1831, the first of several transportation infrastructure projects that gave the community a direct connection 107 miles (172 km) to New York City.

[1][2] Unincorporated communities, localities and place names located partially or completely within the town include Andover Furnace, Delaware Park, Lopatcong Heights, Shirmers and Warren Heights.

[27][28][29] The Town's economic data (as is all of Warren County) is calculated by the United States Census Bureau as part of the Allentown-Bethlehem-Easton, PA-NJ Metropolitan Statistical Area.

[40] The 2010 United States census counted 14,950 people, 5,925 households, and 3,786 families in the town.

Long gone is the era of canal shipping and many of the important freight railways that served the area have gone bankrupt or bypass the city on long-distance routes.

[45] Established in November 1994, the town's Urban Enterprise Zone status expires in October 2025.

[46] Businesses have begun to move on to South Main Street, including the opening of the Apothecarium Dispensary – Phillipsburg in November 2019 selling marijuana, the Town Council voted in June 2021 to adopt an ordinance preventing the opening of any other cannabis retailers.

Since 2007, NJ Transit has been conducting a study to determine if re-establishing a commuter rail extension of the Raritan Valley Line to Phillipsburg is economically feasible.

There is an L&HR snow flanger, Tidewater tank car, a CNJ box car owned by the Anthracite Railroads Historical Society, a 1922 Chestnut Ridge Mack railbus owned by the Lehigh Valley NRHS, a Public Service trolley owned by the North Jersey Electric Railway Historical Society, a 44-ton GE locomotive and a 25-ton GE locomotive.

[49] They operate a miniature railroad, the Centerville & Southwestern, that formerly ran in Roseland, New Jersey.

[7][52][53] As of 2022[update], the Mayor of Phillipsburg is Republican Todd M. Tersigni, whose term of office ends December 31, 2023.

[72] For the 119th United States Congress, New Jersey's 7th congressional district is represented by Thomas Kean Jr. (R, Westfield).

[74] For the 2024-2025 session, the 23rd legislative district of the New Jersey Legislature is represented in the State Senate by Doug Steinhardt (R, Lopatcong Township) and in the General Assembly by John DiMaio (R, Hackettstown) and Erik Peterson (R, Franklin Township).

[79][80] Constitutional officers of Warren County are: Clerk Holly Mackey (R, Alpha; 2027),[81][82] Sheriff James McDonald Sr. (R, Phillipsburg; 2025)[83][84] and Surrogate Michael J. Doherty (R, Washington; 2025).

[88] Among the town's 2010 Census population, 51.4% (vs. 62.3% in Warren County) were registered to vote, including 69.2% of those ages 18 and over (vs. 81.5% countywide).

[109][110][111] The Phillipsburg High School Stateliners have a longstanding athletic rivalry with neighboring Easton, Pennsylvania's Easton Area High School, which celebrated its 100th anniversary game on Thanksgiving Day 2006.

[109][118] Private schools include Saints Philip & James School, which was established in 1875 and serves students in pre-kindergarten through eighth grade, operating under the auspices of the Roman Catholic Diocese of Metuchen.

The CNJ tracks and bridge in Phillipsburg which was part of the CNJ mainline became part of the former Lehigh Valley Railroad mainline, the Lehigh Line now owned by Norfolk Southern Railway, while the PRR line in Phillipsburg is now the Belvidere and Delaware River Railway.