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Data on this report is based on areas within the legal city boundary, outlined in black on the map. Any additional neighborhoods shown on the map are associated with the city by name and are included for reference only.

Ottawa, IL
Real Estate & Demographic Data






Ottawa profile


Living in Ottawa



Ottawa is a medium-sized city located in the state of Illinois. With a population of 18,668 people and five associated neighborhoods, Ottawa is the 132nd largest community in Illinois.

The education level of Ottawa citizens, measured as those with bachelor's degrees or advanced degrees, is similar to the national average for all American cities and towns. 20.47% of adults 25 and older in Ottawa have a college degree.

The per capita income in Ottawa in 2022 was $33,444, which is middle income relative to Illinois and the nation. This equates to an annual income of $133,776 for a family of four. However, Ottawa contains both very wealthy and poor people as well.

Ottawa is a somewhat ethnically-diverse city. The people who call Ottawa home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Ottawa residents report their race to be White, followed by Black or African-American. Ottawa also has a sizeable Hispanic population (people of Hispanic origin can be of any race). People of Hispanic or Latino origin account for 10.63% of the city’s residents. Important ancestries of people in Ottawa include German, Irish, English, Italian, and Polish.

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