Constable is a town in Franklin County, New York, United States. The population was 1,566 at the 2010 census. The town is named after William Constable, a member of the syndicate of original land owners.
According to the United States Census Bureau, the town has a total area of 32.8 square miles (85.0 km), of which 0.01 square miles (0.03 km), or 0.04%, is water.
The north town line is the international border between the United States and Canada and is the border of Quebec.
New York State Route 122 is an east-west highway in the town. New York State Route 30 intersects NY-122 at Constable village and leads south to the village of Malone.
As of the census of 2000, there were 1,428 people, 533 households, and 390 families residing in the town. The population density was 43.5 people per square mile (16.8/km²). There were 607 housing units at an average density of 18.5 per square mile (7.1/km²). The racial makeup of the town was 97.55% White, 0.07% African American, 1.47% Native American, 0.07% Asian, and 0.84% from two or more races. Hispanic or Latino of any race were 0.14% of the population.
There were 533 households out of which 38.1% had children under the age of 18 living with them, 58.2% were married couples living together, 9.4% had a female householder with no husband present, and 26.8% were non-families. 21.4% of all households were made up of individuals and 7.5% had someone living alone who was 65 years of age or older. The average household size was 2.67 and the average family size was 3.03.
In the town, the population was spread out with 28.4% under the age of 18, 6.0% from 18 to 24, 32.7% from 25 to 44, 21.0% from 45 to 64, and 11.9% who were 65 years of age or older. The median age was 36 years. For every 100 females, there were 104.3 males. For every 100 females age 18 and over, there were 103.4 males.
The median income for a household in the town was $31,029, and the median income for a family was $36,488. Males had a median income of $27,955 versus $21,354 for females. The per capita income for the town was $14,149. About 12.3% of families and 16.4% of the population were below the poverty line, including 22.5% of those under age 18 and 8.9% of those age 65 or over.