According to the United States Census Bureau, the township has a total area of, of which, or 0.22%, is water. West Vincent Township is divided from East Vincent Township by French Creek; these two townships were combined as Vincent Township until 1832. The township is partially located in the Hopewell Big Woods. An interesting feature of West Vincent Township is its "missing quarter". In 1715, founder Sir Mathias Vincent and others failed to pay taxes to William Penn, who took them to court. In the end, in southern West Vincent Township were seized and given to Upper Uwchlan Township. This is shown in modern days by Pennsylvania Route 401, which, while travelling straight, leaves this township but soon re-enters it.
Demographics
At the 2010 census, the township was 93.9% non-Hispanic White, 1.1% Black or African American, 0.1% Native American, 2.1% Asian, and 0.9% were two or more races. 1.9% of the population were of Hispanic or Latino ancestry. As of the census of 2000, there were 3,170 people, 1,077 households, and 872 families residing in the township. The population density was 178.6 people per square mile. There were 1,121 housing units at an average density of 63.2/sq mi. The racial makeup of the township was 97.79% White, 0.60% African American, 0.13% Native American, 0.66% Asian, 0.03% Pacific Islander, 0.06% from other races, and 0.73% from two or more races. Hispanic or Latino of any race were 0.57% of the population. There were 1,077 households, out of which 38.8% had children under the age of 18 living with them, 73.5% were married couplesliving together, 4.6% had a female householder with no husband present, and 19.0% were non-families. 14.0% of all households were made up of individuals, and 4.2% had someone living alone who was 65 years of age or older. The average household size was 2.84 and the average family size was 3.15. In the township the population was spread out, with 28.1% under the age of 18, 3.6% from 18 to 24, 29.8% from 25 to 44, 28.4% from 45 to 64, and 10.1% who were 65 years of age or older. The median age was 40 years. For every 100 females, there were 102.0 males. For every 100 females age 18 and over, there were 99.0 males. The median income for a household in the township was $92,024, and the median income for a family was $106,223. Males had a median income of $70,670 versus $42,371 for females. The per capita income for the township was $43,500. About 3.2% of families and 6.8% of the population were below the poverty line, including 5.9% of those under age 18 and 6.8% of those age 65 or over.
Weatherstone
Weatherstone is a housing development built by the Hankin Group located at the intersection of PA 100 & PA 401. It contains about 270 homes and the Hankin Library. Construction started in 2002. The original plans called for a retail development as well. As of 2017, the land still remains vacant, but plans have not been abandoned.
Notable residents
Graceanna Lewis American naturalist, suffragist, and anti-slavery activist, was born in West Vincent Township.
