Crest Hill is a medium-sized city located in the state of Illinois. With a population of 20,118 people and six associated neighborhoods, Crest Hill is the 119th largest community in Illinois. Crest Hill 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 Crest Hill, where the median household income is $71,408.00.

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

The citizens of Crest Hill are slightly better educated than the national average of 21.84% for all cities and towns, with 21.54% of adults in Crest Hill having a bachelor's degree or advanced degree.

The per capita income in Crest Hill in 2022 was $33,522, which is middle income relative to Illinois and the nation. This equates to an annual income of $134,088 for a family of four. However, Crest Hill contains both very wealthy and poor people as well.

Crest Hill is an extremely ethnically-diverse city. The people who call Crest Hill home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Crest Hill residents report their race to be White, followed by Black or African-American. Crest Hill also has a sizeable Hispanic population (people of Hispanic origin can be of any race). People of Hispanic or Latino origin account for 24.26% of the city’s residents. Important ancestries of people in Crest Hill include German, Italian, Irish, Polish, and English.

The most common language spoken in Crest Hill is English. Other important languages spoken here include Spanish and Tagalog.