Forestburgh is a town in Sullivan County, New York, United States. The population was 819 at the 2010 census. It is where the Neversink River enters the Neversink Gorge and flows over High Falls. The ZIP code of Forestburgh, New York is 12777.
Part of the south town line is the border of Orange County, New York.
According to the United States Census Bureau, the town has a total area of 56.8 square miles (147 km), of which, 55.2 square miles (143 km) of it is land and 1.6 square miles (4.1 km) of it (2.83%) is water.
As of the census of 2000, there were 833 people, 327 households, and 222 families residing in the town. The population density was 15.1 people per square mile (5.8/km²). There were 500 housing units at an average density of 9.1 per square mile (3.5/km²). The racial makeup of the town was 95.68% White, 2.04% African American, 1.68% from other races, and 0.60% from two or more races. Hispanic or Latino of any race were 4.80% of the population.
There were 327 households out of which 28.1% had children under the age of 18 living with them, 57.2% were married couples living together, 6.7% had a female householder with no husband present, and 32.1% were non-families. 26.9% of all households were made up of individuals and 12.2% had someone living alone who was 65 years of age or older. The average household size was 2.53 and the average family size was 3.03.
In the town, the population was spread out with 22.1% under the age of 18, 5.2% from 18 to 24, 25.7% from 25 to 44, 31.1% from 45 to 64, and 16.0% who were 65 years of age or older. The median age was 43 years. For every 100 females, there were 91.5 males. For every 100 females age 18 and over, there were 97.3 males.
The median income for a household in the town was $56,125, and the median income for a family was $60,139. Males had a median income of $37,500 versus $35,347 for females. The per capita income for the town was $26,864. About 4.1% of families and 7.0% of the population were below the poverty line, including 4.0% of those under age 18 and 7.2% of those age 65 or over.