Amenia is a town in Dutchess County, New York. The population was 4,436 at the 2010 census. The town is on the east border of the county.
According to the United States Census Bureau, the town has a total area of 43.6 square miles (113.0 km), of which 43.2 square miles (111.9 km) is land and 0.39 square miles (1.0 km), or 0.91%, is water. The town is drained by the Ten Mile River, a tributary of the Housatonic River. The Ten Mile River is formed in the southern part of the town by the confluence of Wassaic Creek (draining the western part of the town) and Webatuck Creek (draining the eastern part).
The east town line is the border of Connecticut. U.S. Route 44 crosses the north part of the town.
As of the census of 2000, there were 4,048 people, 1,625 households, and 1,074 families residing in the town. The population density was 93.5 people per square mile (36.1/km²). There were 1,814 housing units at an average density of 41.9 per square mile (16.2/km²). The racial makeup of the town was 93.40% White, 2.94% Black or African American, 0.59% Native American, 0.47% Asian, 0.77% from other races, and 1.83% from two or more races. Hispanic or Latino of any race were 3.36% of the population.
There were 1,625 households out of which 29.4% had children under the age of 18 living with them, 51.4% were married couples living together, 9.8% had a female householder with no husband present, and 33.9% were non-families. 27.9% of all households were made up of individuals and 13.0% had someone living alone who was 65 years of age or older. The average household size was 2.46 and the average family size was 2.97.
In the town, the population was spread out with 23.7% under the age of 18, 6.5% from 18 to 24, 27.6% from 25 to 44, 25.0% from 45 to 64, and 17.1% who were 65 years of age or older. The median age was 40 years. For every 100 females, there were 95.6 males. For every 100 females age 18 and over, there were 91.6 males.
The median income for a household in the town was $39,231, and the median income for a family was $51,294. Males had a median income of $32,038 versus $28,769 for females. The per capita income for the town was $22,095. About 3.4% of families and 8.1% of the population were below the poverty line, including 2.0% of those under age 18 and 12.7% of those age 65 or over.