Illinois elected its member August 7, 1820.
| District | Incumbent | This race | |||
|---|---|---|---|---|---|
| Member | Party | First elected | Results | Candidates | |
| Illinois at-large | Daniel P. Cook | Democratic-Republican | 1819 | Incumbent re-elected. | √ Daniel P. Cook (Democratic-Republican) 64.7% Elias Kane 35.2% John McLean (Democratic-Republican) 0.1% |
See also
edit- 1820 and 1821 United States House of Representatives elections
- List of United States representatives from Illinois
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