Broadalbin is a town in Fulton County, New York, United States. The population was 5,250 at the 2010 census. The town was named after the Breadalbane Region in Scotland by an early settler.
Broadalbin is located along the eastern edge of Fulton County, at the south end of Great Sacandaga Lake. The east town line is the border of Saratoga County. The village of Broadalbin is on the western side of the town and extends west into the town of Mayfield. The town is partially in the Adirondack Park.
According to the United States Census Bureau, the town has a total area of 39.7 square miles (102.9 km), of which 31.7 square miles (82.2 km) is land and 8.1 square miles (20.9 km), or 20.26%, is water.
New York State Route 29 crosses the center of the town, leading east to Saratoga Springs and west to Johnstown, the Fulton County seat.
As of the census of 2000, there were 5,066 people, 1,951 households and 1,404 families residing in the town. The population density was 159.7 people per square mile (61.7/km²). There were 2,625 housing units at an average density of 82.7 per square mile (32.0/km²). The racial makeup of the town was 98.34% White, 0.55% Black or African American, 0.24% Native American, 0.10% Asian, 0.02% Pacific Islander, 0.22% from other races, and 0.53% from two or more races. Hispanic or Latino of any race were 1.11% of the population.
There were 1,951 households out of which 35.5% had children under the age of 18 living with them, 57.7% were married couples living together, 9.9% had a female householder with no husband present, and 28.0% were non-families. 22.8% of all households were made up of individuals and 10.2% 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 3.04.
In the town, the population was spread out with 27.1% under the age of 18, 6.0% from 18 to 24, 29.7% from 25 to 44, 23.7% from 45 to 64, and 13.5% who were 65 years of age or older. The median age was 38 years. For every 100 females, there were 99.0 males. For every 100 females age 18 and over, there were 96.6 males.
The median income for a household in the town was $40,417, and the median income for a family was $44,957. Males had a median income of $34,263 versus $25,500 for females. The per capita income for the town was $18,575. About 3.8% of families and 5.2% of the population were below the poverty line, including 2.8% of those under age 18 and 2.0% of those age 65 or over.