Champlain is a town in Clinton County, New York, United States. The population was 5,754 at the 2010 census. The town is located on the west shore of Lake Champlain, near the north end of the lake and on the U.S./Canadian border.
Champlain is approximately 43 miles (69 km) south of Montreal. According to the 2010 United States census, the town has a total area of 58.8 square miles (152.3 km), of which 51.2 square miles (132.7 km) is land and 7.6 square miles (19.6 km), or 12.90%, is water.
Lake Champlain and the Richelieu River are on the east edge of the town, which shares a border with Grand Isle County, Vermont. The town line to the north is the international border with Saint-Bernard-de-Lacolle, Quebec, Canada.
The 176-mile (283 km) Adirondack Northway (Interstate 87) is a major north-south highway that begins at the Canada–United States border at Champlain and travels south to Albany, connecting to the New York State Thruway. U.S. Route 9 parallels I-87, and U.S. Route 11 runs east-west across the town. U.S. Route 2 intersects US-11 by Rouses Point. New York State Route 9B intersects US-11 in the northeast and US-9 in the southern part of Champlain, providing a highway closer to Lake Champlain. New York State Route 276 partly runs along the international border.
As of the 2000 census, there were 5,791 people, 2,386 households, and 1,562 families residing in the town. The population density was 113.1 people per square mile (43.7/km²). There were 2,718 housing units at an average density of 53.1 per square mile (20.5/km²). The racial makeup of the town was 97.74% White, 0.52% Black or African American, 0.29% Native American, 0.36% Asian, 0.02% Pacific Islander, 0.26% from other races, and 0.81% from two or more races. Hispanic or Latino of any race were 1.00% of the population.
There were 2,386 households out of which 31.1% had children under the age of 18 living with them, 51.0% were married couples living together, 10.7% had a female householder with no husband present, and 34.5% were non-families. 28.7% 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 2.39 and the average family size was 2.95.
In the town, the population was spread out with 25.0% under the age of 18, 7.1% from 18 to 24, 28.7% from 25 to 44, 24.6% from 45 to 64, and 14.6% who were 65 years of age or older. The median age was 38 years. For every 100 females, there were 95.5 males. For every 100 females age 18 and over, there were 92.8 males.
The median income for a household in the town was $37,775, and the median income for a family was $46,113. Males had a median income of $35,198 versus $26,345 for females. The per capita income for the town was $18,987. About 6.7% of families and 9.2% of the population were below the poverty line, including 9.5% of those under age 18 and 6.9% of those age 65 or over.