Kingwood was originally established around 1746 when it was created from Bethlehem Township, though the exact details are uncertain.

[22] Kingwood Township was the home of Daniel Bray, the local captain who rounded up the boats for George Washington's crossing of the Delaware River during the Revolutionary War.

[26][27][28] Most of the township lies on the Hunterdon Plateau, a geologic plateau averaging 300–500 feet (90–150 m) in elevation though approaching the Delaware River, the elevation drops sharply to about 100 feet (30 m) at the banks of the river.

Unincorporated communities, localities and place names located partially or completely within the township include Baptistown, Barbertown, Byram, Idell, Milltown, Point Breeze, Treasure Island, Tumble and Tumble Falls.

[32] The 2010 United States census counted 3,845 people, 1,446 households, and 1,103 families in the township.

[44] As of the 2000 United States census[15] there were 3,782 people, 1,340 households, and 1,042 families residing in the township.

The Mayor serves as the Chairperson of the Committee and votes as an equal member, but has no other special powers.

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

[57] For the 2024-2025 session, the 15th legislative district of the New Jersey Legislature is represented in the State Senate by Shirley Turner (D, Lawrence Township) and in the General Assembly by Verlina Reynolds-Jackson (D, Trenton) and Anthony Verrelli (D, Hopewell Township).

[81] Students in public school for ninth through twelfth grades attend Delaware Valley Regional High School,[82] together with students from Alexandria Township, Frenchtown, Holland Township and Milford borough.

[92] No limited access roads traverse Kingwood; the closest one is Interstate 78 in neighboring Franklin Township.

[93] The Old Stone Church was built in 1837 and is now owned by the First Unitarian Universalist Fellowship of Hunterdon County.

[95] The Thatcher House, built in 1765, featuring patterned brickwork, was added to the NRHP in 2020.

[96] The Devil's Tea Table, is a prominent landmark near Warsaw Road on Route 29.

It is the focal point of a series of bluffs that contain several geological features of interest, such as the type localities for van Houghton cycles, as well as the type sections for units of the Locatong and Passaic Formations of the Triassic.

These bluffs are a regional scenic attraction and are admired by many tourists who float by on the adjacent Delaware River.

[97] People who were born in, residents of, or otherwise closely associated with Kingwood Township include: