Kingwood Township is a township in Hunterdon County, New Jersey, United States, located on the Hunterdon Plateau. As of the 2010 United States Census, the township’s population was 3,845, reflecting an increase of 63 (+1.7%) from the 3,782 counted in the 2000 Census, which had in turn increased by 457 (+13.7%) from the 3,325 counted in the 1990 Census.
According to the United States Census Bureau, the township had a total area of 35.774 square miles (92.655 km), including 35.158 square miles (91.060 km) of land and 0.616 square mile (1.594 km) of water (1.72%).
The township borders Alexandria Township, Delaware Township, Franklin Township and Frenchtown in Hunterdon County and the communities of Plumstead Township and Tinicum Township in Bucks County, across the Delaware River in Pennsylvania. 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. Exposed rock can be seen on portions of Route 29 in the township between the River and the plateau.
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.
Frenchtown Solar is a group of three photovoltaic arrays owned by Consolidated Edison that forms one of the largest solar farms in the state, covering 110 acres (44.5 ha) with a total of 68,500 solar panels and a 20.1 megawatt generating capacity. Two arrays are located just outside Baptistown on Route 12. The third and largest is to the south off County Route 519.
As of the 2010 United States Census, there were 3,845 people, 1,446 households, and 1,103.298 families residing in the township. The population density was 109.4 per square mile (42.2/km). There were 1,569 housing units at an average density of 44.6 per square mile (17.2/km). The racial makeup of the township was 96.51% (3,711) White, 0.65% (25) Black or African American, 0.03% (1) Native American, 1.09% (42) Asian, 0.00% (0) Pacific Islander, 0.52% (20) from other races, and 1.20% (46) from two or more races. Hispanic or Latino of any race were 2.39% (92) of the population.
There were 1,446 households out of which 32.2% had children under the age of 18 living with them, 64.2% were married couples living together, 8.0% had a female householder with no husband present, and 23.7% were non-families. 18.1% of all households were made up of individuals, and 6.5% had someone living alone who was 65 years of age or older. The average household size was 2.66 and the average family size was 3.04.
In the township, the population was spread out with 23.1% under the age of 18, 6.0% from 18 to 24, 20.8% from 25 to 44, 37.3% from 45 to 64, and 12.9% who were 65 years of age or older. The median age was 45.1 years. For every 100 females there were 103.0 males. For every 100 females ages 18 and older there were 99.1 males.
The Census Bureau’s 2006-2010 American Community Survey showed that (in 2010 inflation-adjusted dollars) median household income was $94,951 (with a margin of error of +/- $8,656) and the median family income was $101,722 (+/- $3,508). Males had a median income of $62,636 (+/- $11,644) versus $39,704 (+/- $5,890) for females. The per capita income for the borough was $38,977 (+/- $4,174). About 2.7% of families and 3.2% of the population were below the poverty line, including 6.1% of those under age 18 and 0.0% of those age 65 or over.
As of the 2000 United States Census there were 3,782 people, 1,340 households, and 1,042 families residing in the township. The population density was 107.4 people per square mile (41.4/km²). There were 1,422 housing units at an average density of 40.4 per square mile (15.6/km²). The racial makeup of the township was 97.62% White, 0.61% African American, 0.08% Native American, 0.77% Asian, 0.19% from other races, and 0.74% from two or more races. Hispanic or Latino of any race were 1.85% of the population.
There were 1,340 households out of which 38.9% had children under the age of 18 living with them, 68.9% were married couples living together, 6.0% had a female householder with no husband present, and 22.2% were non-families. 17.6% of all households were made up of individuals and 6.9% had someone living alone who was 65 years of age or older. The average household size was 2.82 and the average family size was 3.21.
In the township the population was spread out with 27.3% under the age of 18, 4.8% from 18 to 24, 31.6% from 25 to 44, 25.7% from 45 to 64, and 10.5% who were 65 years of age or older. The median age was 39 years. For every 100 females, there were 102.0 males. For every 100 females age 18 and over, there were 99.3 males.
The median income for a household in the township was $71,551, and the median income for a family was $81,642. Males had a median income of $54,107 versus $31,326 for females. The per capita income for the township was $30,219. About 2.3% of families and 2.9% of the population were below the poverty line, including 4.1% of those under age 18 and none of those age 65 or over.