The town of Hoosick was organized in 1788, in Albany County, three years before the creation of Rensselaer County in 1791. The region was formerly the District of Hoosick (1772) and previous to that the Hoosick Patent (1688).
William David Thomas (1880-1936), member of the U.S. House of Representatives, the 29th District, from 1933 until his death in Washington, D.C. in 1936. Pharmacist and owner of the Thomas Pharmacy in Hoosick Falls where Grandma Moses' paintings were discovered. Buried at Maplegrove Cemetery in the village.
According to the United States Census Bureau, the town has a total area of 63.2 square miles (164 km2), of which, 63.0 square miles (163 km2) of it is land and 0.1 square miles (0.26 km2) of it (0.21%) is water.
There were 2,620 households out of which 32.7% had children under the age of 18 living with them, 54.8% were married couples living together, 10.9% had a female householder with no husband present, and 30.4% were non-families. 25.6% of all households were made up of individuals and 11.9% had someone living alone who was 65 years of age or older. The average household size was 2.55 and the average family size was 3.06.
In the town the population was spread out with 25.9% under the age of 18, 7.5% from 18 to 24, 28.0% from 25 to 44, 22.3% from 45 to 64, and 16.2% who were 65 years of age or older. The median age was 39 years. For every 100 females there were 91.4 males. For every 100 females age 18 and over, there were 90.5 males.
The median income for a household in the town was $41,304, and the median income for a family was $46,442. Males had a median income of $35,899 versus $24,211 for females. The per capita income for the town was $20,614. About 5.3% of families and 6.7% of the population were below the poverty line, including 9.5% of those under age 18 and 7.9% of those age 65 or over.