Castleton-on-Hudson is a very small village located in the state of New York. With a population of 1,456 people and two associated neighborhoods, Castleton-on-Hudson is the 681st largest community in New York. Much of the housing stock in Castleton-on-Hudson was built prior to World War II, making it one of the older and more historic villages in the country.

Also of interest is that Castleton-on-Hudson has more people living here who work in computers and math than 95% of the places in the US.

A relatively large number of people in Castleton-on-Hudson telecommute to their jobs. Overall, about 15.77% of the workforce works from home. While this may seem like a small number, as a fraction of the total workforce it ranks among the highest in the country. These workers are often telecommuters who work in knowledge-based, white-collar professions. For example, Silicon Valley has large numbers of people who telecommute. Other at-home workers may be self-employed people who operate small businesses out of their homes.

The education level of Castleton-on-Hudson citizens is substantially higher than the typical US community, as 30.95% of adults in Castleton-on-Hudson have at least a bachelor's degree.

The per capita income in Castleton-on-Hudson in 2022 was $38,485, which is middle income relative to New York, and upper middle income relative to the rest of the US. This equates to an annual income of $153,940 for a family of four. However, Castleton-on-Hudson contains both very wealthy and poor people as well.

Castleton-on-Hudson is a somewhat ethnically-diverse village. The people who call Castleton-on-Hudson home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Castleton-on-Hudson residents report their race to be White, followed by Black or African-American. Castleton-on-Hudson also has a sizeable Hispanic population (people of Hispanic origin can be of any race). People of Hispanic or Latino origin account for 10.04% of the village’s residents. Important ancestries of people in Castleton-on-Hudson include German, Irish, Italian, English, and French.

The most common language spoken in Castleton-on-Hudson is English. Other important languages spoken here include Spanish and Polish.