Washington is a medium-sized city located in the state of Illinois. With a population of 15,890 people and five associated neighborhoods, Washington is the 157th largest community in Illinois. Washington has seen a significant amount of newer housing growth in recent years. Quite often, new home construction is the result of new residents moving in who are middle class or wealthier, attracted by jobs, a healthy local economy, or other amenities as they leave nearby or far away areas for greener pastures. This seems to be the case in Washington, where the median household income is $87,104.00.

Also of interest is that Washington 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: 10.87% 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, Washington is a great place for families with children to consider. First of all, many other families with children live here, making Washington 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 city’s good public school district and large population of college-educated adults provide an environment conducive to academic values. With regard to real estate, Washington has a high rate of owner-occupied single family homes, which tends to reflect stability in the local community. Finally, Washington’s overall crime rate is lower than average for the country.

Being a small city, Washington does not have a public transit system used by locals to get to and from work.

Washington is one of the most well-educated cities in the nation. 43.46% of adults in Washington have at least a bachelor's degree. Compare that to the average community in America, which has just 21.84% with a bachelor's degree or higher.

The per capita income in Washington in 2022 was $40,156, which is upper middle income relative to Illinois and the nation. This equates to an annual income of $160,624 for a family of four. However, Washington contains both very wealthy and poor people as well.

The people who call Washington home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Washington residents report their race to be White, followed by Asian. Important ancestries of people in Washington include German, English, Irish, Italian, and French.

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