Waterloo is a very small village located in the state of New York. With a population of 4,767 people and four associated neighborhoods, Waterloo is the 337th largest community in New York. Waterloo has an unusually large stock of pre-World War II architecture, making it one of the older and more historic villages.

A relatively large number of people in Waterloo telecommute to their jobs. Overall, about 8.41% 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 population of Waterloo overall has a level of education that is slightly above the US average for all US cities and towns of 21.84%. Of adults 25 and older in Waterloo, 22.60% have at least a bachelor's degree.

The per capita income in Waterloo in 2018 was $34,329, which is lower middle income relative to New York, and middle income relative to the rest of the US. This equates to an annual income of $137,316 for a family of four. However, Waterloo contains both very wealthy and poor people as well.

Waterloo is a somewhat ethnically-diverse village. The people who call Waterloo home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Waterloo residents report their race to be White, followed by Black or African-American. Important ancestries of people in Waterloo include Irish, German, Italian, English, and Polish.

The most common language spoken in Waterloo is English. Other important languages spoken here include Spanish and Polish.