As of the 2020 United States Census, Champaign has a population of approximately 88,302 residents, making it the largest city in Champaign County. The population is notable for its youthful skew, heavily influenced by the large number of college students who live in the city during the academic year.
The city is culturally and ethnically diverse. The demographic breakdown is approximately 65% White, 16% Black or African American, 11% Asian, and 6% Hispanic or Latino. Champaign boasts a highly educated populace, with a significant percentage of adult residents holding a bachelor's degree or higher, driven by the presence of the university and local tech industries. This diversity is reflected in the city's wide array of international dining, cultural festivals, and community organizations.

