Lebanon is a very small city located in the state of Illinois. With a population of 4,571 people and two associated neighborhoods, Lebanon is the 358th largest community in Illinois. There's nothing like the smell of a brand new house, and in Lebanon, you'll find that a large proportion of houses were recently built. New growth in residential real estate is an indication that people are choosing to move to Lebanon, and putting down their money on brand new construction. Lebanon’s real estate is, on average, some of the newest in the nation. Lebanon does seem to be experiencing an influx of affluent people, because the median household income is $84,766.00.

Lebanon is home to a number of people employed in the armed forces. When you visit or walk around Lebanon, some of the people you will bump into will be military people In and out of uniform, jogging, shopping and generally out and about town.

A relatively large number of people in Lebanon telecommute to their jobs. Overall, about 24.21% 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.

Lebanon is a small town where college students really create the town feel and character. So many small towns have lost population over the last 20-30 years that having the local college presence in the Lebanon area, with all of the energy of the students filling area dorms and apartments each fall, really helps Lebanon maintain a good economy.

The education level of Lebanon ranks among the highest in the nation. Of the 25-and-older adult population in Lebanon, 40.01% have at least a bachelor's degree. The typical US community has just 21.84% of its adults holding a bachelor's degree or graduate degree.

The per capita income in Lebanon in 2022 was $39,189, which is upper middle income relative to Illinois and the nation. This equates to an annual income of $156,756 for a family of four. However, Lebanon contains both very wealthy and poor people as well.

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

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