Swansea is a somewhat small village located in the state of Illinois. With a population of 14,112 people and three associated neighborhoods, Swansea is the 169th largest community in Illinois.

Also of interest is that Swansea 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 Swansea telecommute to their jobs. Overall, about 10.93% 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 Swansea are among the most well-educated in the nation: 43.89% of adults in Swansea 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 Swansea in 2022 was $45,237, which is wealthy relative to Illinois and the nation. This equates to an annual income of $180,948 for a family of four.

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

The most common language spoken in Swansea is English. Other important languages spoken here include Chinese and Korean.