Remsen is a town in Oneida County, New York, United States. The population was 1,929 at the 2010 census. The town is named after Henry Remsen, an early settler. The Town of Remsen contains a village also named Remsen. The town is north of the city of Utica, New York.
According to the United States Census Bureau, the town has a total area of 36.9 square miles (95.5 km²), of which, 35.4 square miles (91.7 km²) of it is land and 1.5 square miles (3.9 km²) of it (4.04%) is water.
The east town line is the border of Herkimer County. The Black River, widened into Kayuta Lake by a dam, defines the north part of the town.
Remsen is at the border of the Adirondack Park.
As of the census of 2000, there were 1,958 people, 745 households, and 517 families residing in the town. The population density was 55.3 people per square mile (21.4/km²). There were 991 housing units at an average density of 28.0 per square mile (10.8/km²). The racial makeup of the town was 98.26% White, 0.36% Black or African American, 0.15% Native American, 0.41% Asian, and 0.82% from two or more races. Hispanic or Latino of any race were 0.15% of the population.
There were 745 households out of which 36.2% had children under the age of 18 living with them, 54.1% were married couples living together, 11.5% had a female householder with no husband present, and 30.5% were non-families. 22.6% of all households were made up of individuals and 9.1% had someone living alone who was 65 years of age or older. The average household size was 2.62 and the average family size was 3.12.
In the town, the population was spread out with 28.1% under the age of 18, 7.3% from 18 to 24, 28.9% from 25 to 44, 24.9% from 45 to 64, and 10.9% who were 65 years of age or older. The median age was 36 years. For every 100 females, there were 99.8 males. For every 100 females age 18 and over, there were 99.2 males.
The median income for a household in the town was $34,968, and the median income for a family was $41,042. Males had a median income of $30,938 versus $22,989 for females. The per capita income for the town was $16,394. About 8.5% of families and 11.2% of the population were below the poverty line, including 10.5% of those under age 18 and 10.4% of those age 65 or over.