History The town was first settled around 1775, but most pioneers did not enter the area until after the Revolutionary War.
The town was made from part of Pittsfield in 1806, but was then called “Lisbon.” The name was changed to “New Lisbon” in 1808.
According to the United States Census Bureau, the town has a total area of 44.7 square miles (115.7 km²), of which, 44.5 square miles (115.3 km²) of it is land and 0.1 square miles (0.4 km²) of it (0.31%) is water.
New York State Route 51 is a north-south highway in New Lisbon.
The West Branch of Otego Creek flows along the east town line. Butternut Creek flows across the western part of New Lisbon.
As of the census of 2000, there were 1,116 people, 431 households, and 309 families residing in the town. The population density was 25.1 people per square mile (9.7/km²). There were 586 housing units at an average density of 13.2/sq mi (5.1/km²). The racial makeup of the town was 97.31% White, 0.90% African American, 0.18% Native American, 0.45% Asian, 0.45% from other races, and 0.72% from two or more races. Hispanic or Latino of any race were 1.34% of the population.
There were 431 households out of which 32.9% had children under the age of 18 living with them, 58.7% were married couples living together, 8.8% had a female householder with no husband present, and 28.1% were non-families. 23.4% of all households were made up of individuals and 9.7% 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 25.4% under the age of 18, 6.4% from 18 to 24, 27.0% from 25 to 44, 27.2% from 45 to 64, and 14.0% who were 65 years of age or older. The median age was 40 years. For every 100 females there were 96.5 males. For every 100 females age 18 and over, there were 97.6 males.
The median income for a household in the town was $33,750, and the median income for a family was $40,125. Males had a median income of $27,604 versus $22,500 for females. The per capita income for the town was $16,935. About 11.1% of families and 14.5% of the population were below the poverty line, including 19.2% of those under age 18 and 6.3% of those age 65 or over.