1984 Illinois Democratic presidential primary

The 1984 Illinois Democratic presidential primary was held on March 20, 1984, in the U.S. state of Illinois as one of the Democratic Party's statewide nomination contests ahead of the 1984 presidential election.

Jackson's voters were 88% black, 10% white, and 1% were members of other groups.

Results
Former Vice President Walter Mondale won the contest by over 40% of the popular votes.