Hillsdale is a town in Columbia County, New York, near Hudson, New York and Great Barrington, Massachusetts. State Routes 22 and 23 intersect near the town center, which is listed on the National Register of Historic Places. The town has several restaurants and a general store, among other businesses. Hillsdale is known for its hilly landscape and is near Bash Bish Falls, Taconic State Park, and the Catamount ski area.
According to the United States Census Bureau, the town has a total area of 47.9 square miles (124.0 km), of which 47.7 square miles (123.6 km) is land and 0.15 square miles (0.4 km), or 0.34%, is water.
The east town line is the New York – Massachusetts border.
As of the census of 2000, there were 1,744 people, 721 households, and 485 families residing in the town. The population density was 36.6 people per square mile (14.1/km²). There were 1,133 housing units at an average density of 23.8 per square mile (9.2/km²). The racial makeup of the town was 97.88% White, 0.63% African American, 0.46% Asian, 0.52% from other races, and 0.52% from two or more races. Hispanic or Latino of any race were 1.61% of the population.
There were 721 households out of which 28.4% had children under the age of 18 living with them, 54.0% were married couples living together, 7.6% had a female householder with no husband present, and 32.6% were non-families. 25.7% of all households were made up of individuals and 10.7% had someone living alone who was 65 years of age or older. The average household size was 2.42 and the average family size was 2.90.
In the town, the population was spread out with 23.9% under the age of 18, 5.9% from 18 to 24, 23.1% from 25 to 44, 30.2% from 45 to 64, and 17.0% who were 65 years of age or older. The median age was 43 years. For every 100 females, there were 98.9 males. For every 100 females age 18 and over, there were 97.5 males.
The median income for a household in the town was $40,156, and the median income for a family was $46,250. Males had a median income of $30,893 versus $25,694 for females. The per capita income for the town was $27,186. About 4.7% of families and 8.3% of the population were below the poverty line, including 8.5% of those under age 18 and 5.1% of those age 65 or over.