Greendale is a somewhat small village located in the state of Wisconsin. With a population of 14,540 people and three associated neighborhoods, Greendale is the 61st largest community in Wisconsin.

Also of interest is that Greendale 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 Greendale telecommute to their jobs. Overall, about 12.49% 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 citizens of Greendale are among the most well-educated in the nation: 49.02% of adults in Greendale have a bachelor's degree or even advanced degree, whereas the average US city has 21.84% holding at least a bachelor's degree.

The per capita income in Greendale in 2018 was $43,538, which is upper middle income relative to Wisconsin and the nation. This equates to an annual income of $174,152 for a family of four. However, Greendale contains both very wealthy and poor people as well.

Greendale is a very ethnically-diverse village. The people who call Greendale home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Greendale residents report their race to be White, followed by Asian. Important ancestries of people in Greendale include German, Polish, Irish, English, and Norwegian.

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