New Lebanon is a town in Columbia County, New York, United States, 24 miles (39 km) southeast of Albany. In 1910, 1,378 people lived in New Lebanon. The population was 2,305 at the 2010 census.
According to the United States Census Bureau, the town has a total area of 36.0 square miles (93.2 km), of which 35.9 square miles (92.9 km) is land and 0.12 square miles (0.3 km), or 0.32%, is water.
The north town line is the border of Rensselaer County, New York, and the east town line is the border of Berkshire County, Massachusetts.
As of the census of 2000, there were 2,454 people, 983 households, and 651 families residing in the town. The population density was 68.4 people per square mile (26.4/km²). There were 1,201 housing units at an average density of 33.5 per square mile (12.9/km²). The racial makeup of the town was 95.52% White, 1.26% African American, 0.08% Native American, 1.34% Asian, 0.16% Pacific Islander, 0.41% from other races, and 1.22% from two or more races. Hispanic or Latino of any race was 1.10% of the population.
There were 983 households out of which 30.2% had children under the age of 18 living with them, 50.7% were married couples living together, 10.8% had a female householder with no husband present, and 33.7% were non-families. 26.3% of all households were made up of individuals and 9.1% had someone living alone who was 65 years of age or older. The average household size was 2.38 and the average family size was 2.87.
In the town, the population was spread out with 26.1% under the age of 18, 6.3% from 18 to 24, 26.0% from 25 to 44, 28.7% from 45 to 64, and 12.9% who were 65 years of age or older. The median age was 40 years. For every 100 females, there were 95.5 males. For every 100 females age 18 and over, there were 94.6 males.
The median income for a household in the town was $44,805, and the median income for a family was $50,417. Males had a median income of $34,524 versus $30,590 for females. The per capita income for the town was $20,529. About 6.8% of families and 9.0% of the population were below the poverty line, including 15.7% of those under age 18 and 4.7% of those age 65 or over.