In 2020, Decatur, IL had a population of 105k people with a median age of 41.1 and a median household income of $53,725. Between 2019 and 2020 the population of Decatur, IL declined from 105,528 to 104,688, a −0.796% decrease and its median household income grew from $50,480 to $53,725, a 6.43% increase.
The 5 largest ethnic groups in Decatur, IL are White (Non-Hispanic) (75.7%), Black or African American (Non-Hispanic) (15.7%), Two+ (Non-Hispanic) (4.64%), White (Hispanic) (1.52%), and Asian (Non-Hispanic) (1.16%).
None of the households in Decatur, IL reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.
98.9% of the residents in Decatur, IL are U.S. citizens.
In 2020, the median property value in Decatur, IL was $103,100, and the homeownership rate was 69.1%. Most people in Decatur, IL drove alone to work, and the average commute time was 18.3 minutes. The average car ownership in Decatur, IL was 2 cars per household.