DeRuyter /dəˈraɪtər/ is a town in Madison County, New York, United States. The population was 1,589 at the 2010 census. The town is named after Michiel Adriaenszoon de Ruyter a famous admiral in the Dutch navy. The name de Ruyter (de Ruĳter) means “the Rider”.
The west town line forms a border with Onondaga County, and Cortland County. The south town line is the border of Chenango County, New York.
According to the United States Census Bureau, the town has a total area of 31.3 square miles (81.0 km²), of which, 30.5 square miles (79.0 km²) of it is land and 0.8 square miles (2.0 km²) of it (2.49%) is water.
As of the census of 2000, there were 1,532 people, 592 households, and 412 families residing in the town. The population density was 50.2 people per square mile (19.4/km²). There were 867 housing units at an average density of 28.4 per square mile (11.0/km²). The racial makeup of the town was 97.06% White, 1.31% Black or African American, 0.26% Native American, 0.39% Asian, 0.07% from other races, and 0.91% from two or more races. Hispanic or Latino of any race were 0.33% of the population.
There were 592 households out of which 31.3% had children under the age of 18 living with them, 56.9% were married couples living together, 8.6% had a female householder with no husband present, and 30.4% were non-families. 25.2% of all households were made up of individuals and 12.5% had someone living alone who was 65 years of age or older. The average household size was 2.59 and the average family size was 3.08.
In the town, the population was spread out with 27.0% under the age of 18, 6.9% from 18 to 24, 26.7% from 25 to 44, 24.8% from 45 to 64, and 14.6% who were 65 years of age or older. The median age was 38 years. For every 100 females, there were 93.9 males. For every 100 females age 18 and over, there were 93.8 males.
The median income for a household in the town was $34,911, and the median income for a family was $41,417. Males had a median income of $30,909 versus $22,063 for females. The per capita income for the town was $17,339. About 7.3% of families and 11.8% of the population were below the poverty line, including 12.7% of those under age 18 and 10.9% of those age 65 or over.