Sussex is a somewhat small village located in the state of Wisconsin. With a population of 11,819 people and four associated neighborhoods, Sussex is the 83rd largest community in Wisconsin.

Sussex real estate is some of the most expensive in Wisconsin, although Sussex house values don't compare to the most expensive real estate in the U.S.

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

Telecommuters are a relatively large percentage of the workforce: 16.20% of people work from home. While this number may seem small overall, as a fraction of the total workforce it is high relative to the nation. 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.

Because of many things, Sussex is a great place for families with children to consider. First of all, many other families with children live here, making Sussex a place where both parents and children are more likely to develop social ties with other families, as well as find family-oriented services and community. The village’s good public school district and large population of college-educated adults provide an environment conducive to academic values. With regard to real estate, Sussex has a high rate of owner-occupied single family homes, which tends to reflect stability in the local community. Finally, Sussex’s overall crime rate is lower than average for the country.

The citizens of Sussex are among the most well-educated in the nation: 47.66% of adults in Sussex 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 Sussex in 2022 was $49,117, which is wealthy relative to Wisconsin and the nation. This equates to an annual income of $196,468 for a family of four.

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

The most common language spoken in Sussex is English. Other important languages spoken here include Polish and German/Yiddish.