Greenwood Township is in northern Columbia County. Little Fishing Creek forms most of the western boundary. The borough of Millville is also along the western border. The Greenwood Valley fills the southern half of the township, while hills rise in the northern half and along the southern border. Unincorporated communities in the township include Iola, Greenwood, Eyers Grove, and Rohrsburg. According to the United States Census Bureau, the township has a total area of. is land and of it is water.
Demographics
As of the census of 2000, there were 1,932 people, 721 households, and 553 families residing in the township. The population density was 69.3 people per square mile. There were 783 housing units at an average density of 28.1/sq mi. The racial makeup of the township was 98.55% White, 0.16% African American, 0.21% Native American, 0.21% Asian, 0.16% from other races, and 0.72% from two or more races. Hispanic or Latino of any race were 0.36% of the population. There were 721 households, out of which 32.6% had children under the age of 18 living with them, 66.6% were married couplesliving together, 6.4% had a female householder with no husband present, and 23.3% were non-families. 18.7% of all households were made up of individuals, and 8.5% had someone living alone who was 65 years of age or older. The average household size was 2.68 and the average family size was 3.06. In the township the population was spread out, with 24.7% under the age of 18, 8.3% from 18 to 24, 29.7% from 25 to 44, 25.3% from 45 to 64, and 12.1% who were 65 years of age or older. The median age was 38 years. For every 100 females, there were 102.7 males. For every 100 females age 18 and over, there were 102.1 males. The median income for a household in the township was $37,650, and the median income for a family was $41,473. Males had a median income of $28,884 versus $21,417 for females. The per capita income for the township was $17,104. About 3.7% of families and 6.0% of the population were below the poverty line, including 6.6% of those under age 18 and 10.7% of those age 65 or over.
