menu
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.

Decatur, IL
Real Estate & Demographic Data






Decatur profile


Living in Decatur



Decatur is a larger medium-sized city located in the state of Illinois. With a population of 69,097 people and 30 constituent neighborhoods, Decatur is the 17th largest community in Illinois.

Compared to the rest of the country, citizens of Decatur spend much less time in their cars: on average, their commute to work is only 18.49 minutes. This also means that noise and pollution levels in the city are less than they would otherwise be.

The citizens of Decatur are slightly better educated than the national average of 21.84% for all cities and towns, with 21.06% of adults in Decatur having a bachelor's degree or advanced degree.

The per capita income in Decatur in 2018 was $29,299, which is middle income relative to Illinois and the nation. This equates to an annual income of $117,196 for a family of four. However, Decatur contains both very wealthy and poor people as well.

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

The most common language spoken in Decatur is English. Other important languages spoken here include Spanish and Langs. of India.