[30][31] The township's economic data and that of Warren County is calculated by the U.S. Census Bureau as part of the Allentown-Bethlehem-Easton, PA-NJ Metropolitan Statistical Area, which also includes Carbon, Lehigh, and Northampton counties in eastern and northeastern Pennsylvania.

[42] The 2010 United States census counted 5,967 people, 2,124 households, and 1,703 families in the township.

Of all households, 15.8% were made up of individuals and 6.3% had someone living alone who was 65 years of age or older.

[43] As of the 2000 United States census,[15] there were 5,747 people, 2,040 households, and 1,638 families residing in the township.

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

[53] 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).

[58][59] Constitutional officers of Warren County are: Clerk Holly Mackey (R, Alpha; 2027),[60][61] Sheriff James McDonald Sr. (R, Phillipsburg; 2025)[62][63] and Surrogate Michael J. Doherty (R, Washington; 2025).

[67] Among the township's 2010 Census population, 72.0% (vs. 62.3% in Warren County) were registered to vote, including 94.6% of those ages 18 and over (vs. 81.5% countywide).

[92] Blairstown Airport (1N7) is located southwest of the central business district.

It ran west from Port Morris, New Jersey to Slateford, Pennsylvania and passed through Blairstown.

Due to declining revenues, passenger service over the Lackawanna Cut-Off was discontinued on January 6, 1970, and freight service ceased in 1979, just three years after the E-L was absorbed into the Consolidated Railroad Corporation (Conrail).

The tracks remained relatively-dormant until 1984, when the property was sold to a developer and the rails were removed.

The right-of-way is now the property of the State of New Jersey, and plans are underway for the restoration of rail service in the future.

[95] Blairstown's poured concrete passenger and freight stations still stand, although privately owned.

The short line, a personal project of the local industrial magnate John Insley Blair, was constructed in 1876 from Blairstown to Delaware Township, where it connected with the Old Main Line of the Lackawanna RR.

The Blairstown Railway was absorbed by the New York, Susquehanna & Western Railroad in 1882 as it built west to the coal fields of Pennsylvania.

The NYS&W also operated passenger service between Blairstown and New York (via Jersey City, NJ) until 1935.

The right-of-way today has been preserved by the State of New Jersey as the 26-mile (42 km) long Paulinskill Valley Trail.