| Turnout | 78.15% |
|---|---|
Elections were held inIllinois on Tuesday, November 4, 1980.[1]
Primaries were held on March 18.[2]
Turnout in the primary election was 43.50%, with a total of 2,493,518 ballots cast.[3] 1,321,810 Democratic and 1,171,708 Republican primary ballots were cast.[2]
Turnout during the general election was 78.14%, with 4,868,623 ballots cast.[1][3]
Illinois voted for Republicanticket ofRonald Reagan andGeorge H. W. Bush.[1]
This was the fourth consecutive election in which the state had voted for theRepublican ticket in a presidential election.
Incumbent DemocratAdlai Stevenson III, did not seek reelection. DemocratAlan J. Dixon was elected to succeed him.
In a January 22, 1980special election forIllinois's 10th congressional district, RepublicanJohn Porter captured what had previously been a Democratic-held seat.
All of Illinois' 24 congressional seats were up for reelection in November 1980.
In the November election, none of Illinois' seats switched parties, with there remaining 14 Republican and seats 10 Democratic seats in Illinois' House of Representatives delegation.
Some seats of theIllinois Senate were up for election in 1980. Democrats retained control of the chamber.
All of the seats in theIllinois House of Representatives were up for election in 1980. Republicans flipped control of the chamber.
An election was held for three of nine seats for Trustees ofUniversity of Illinois system.
The election saw the reelection first-term incumbent Democratic Nina T. Shepherd and the election of new members, Republicans Galey S. Day and Dean E. Madden.[1][4]
First-term incumbent Democrats Arthur R. Velasquez and Robert J. Lenz lost reelection.[1][4]
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Dean S. Madden | 2,009,945 | 16.88 | |
| Democratic | Nina T. Shepherd (incumbent) | 1,995,637 | 16.76 | |
| Republican | Mrs. Galey S. Day | 1,914,231 | 16.07 | |
| Democratic | Robert J. Lenz (incumbent) | 1,840,099 | 15.45 | |
| Republican | Lawrence W. Gougler | 1,786,141 | 15.00 | |
| Democratic | Arthur R. Velasquez (incumbent) | 1,761,259 | 14.79 | |
| Citizens | Denise B. Rose | 77,123 | 0.65 | |
| Libertarian | William R. Mitchell | 63,282 | 0.53 | |
| Libertarian | Richard Rasmussen | 61,249 | 0.51 | |
| Libertarian | James D. McCawley | 58,994 | 0.50 | |
| Citizens | John Rossen | 56,068 | 0.47 | |
| Communist | Barbara A. Browne | 46,956 | 0.39 | |
| Citizens | Andy Korsage-Norman | 41,808 | 0.35 | |
| Socialist Workers | Donald J. Hanrahan | 31,774 | 0.27 | |
| Socialist Workers | Susan E. Browne | 29,639 | 0.25 | |
| Workers World | Jill H. Hill | 27,704 | 0.23 | |
| Workers World | Sharon K. Sindelar | 26,017 | 0.22 | |
| Communist | Mark J. Almberg | 22,793 | 0.19 | |
| Communist | Richard W. Rozoff | 22,406 | 0.19 | |
| Socialist Workers | David W. Tucker | 18,551 | 0.16 | |
| Workers World | Willie James Hill | 18,029 | 0.15 | |
| Write-in | Others | 47 | 0.00 | |
| Total votes | 11,909,752 | 100 | ||
Multiple judicial positions were up for election in 1980.
Illinois voters voted on a two ballot measures in 1980.[5] In order to be approved, the measures required either 60% support among those specifically voting on the measure or 50% support among all ballots cast in the elections.[5]
The two measures were approved, becoming the first amendments to be successfully made followingthe passage of the 1970Constitution of Illinois.[5]
Voters approved the Size of State House of Representatives Amendment (also known as "Amendment 1", the "Legislative Article", and the "Cutback Amendment"), which was aninitiated constitutional amendment that amended Article IV, Sections 1, 2 and 3 of the Constitution of Illinois to reduce the size of the Illinois House of Representatives from 177 to 118 members, eliminatedcumulative voting, and replace the use of multi-memberdistricts with single-member districts.[1][5][6][7]
| Size of State House of Representatives Amendment[1][5][7] | |||
|---|---|---|---|
| Option | Votes | % of votes on referendum | % of all ballots cast |
| Yes | 2,112,224 | 68.70 | 43.38 |
| No | 962,325 | 31.30 | 19.77 |
| Total votes | 3,074,549 | 100 | 63.15 |
| Voter turnout | 49.35% | ||

Voters approved the Sale of Tax Delinquent Property Amendment (also known as the "Revenue Article" and "Article 2"), which was alegislatively referred constitutional amendment that amended Article IX, Section 8 of the Constitution of Illinois to reduce the redemption period on the sale of tax delinquent property.[1][5][8][9]
| Sale of Tax Delinquent Property Amendment[1][5][8] | |||
|---|---|---|---|
| Option | Votes | % of votes on referendum | % of all ballots cast |
| Yes | 1,857,985 | 69.94 | 38.16 |
| No | 798,422 | 30.06 | 16.40 |
| Total votes | 2,656,407 | 100 | 54.56 |
| Voter turnout | 42.64% | ||

Local elections were held.