2010 Illinois elections

For the primary election, turnout was 23.14%, with 1,758,489 votes cast.[1]

Turnout by county[1]

For the general election, turnout was 50.53%, with 3,792,770 votes cast.[2]

Turnout by county[2]

Incumbent Democrat Roland Burris, appointed in 2009 by then-Governor Rod Blagojevich to fill the U.S. Senate seat that Barack Obama had vacated after being elected President of the United States, did not seek reelection.

U.S. Congressman Mark Kirk (Republican Party) won against State Treasurer Alexi Giannoulias (Democratic Party), Mike Labno (Libertarian Party), and football coach LeAlan Jones (Green Party) in both a regular election for the Senate seat and a coinciding special election to fill the remainder of Barack Obama's unexpired term.

All Illinois seats in the United States House of Representatives were up for election in 2010.

The Republican Party flipped four Democratic-held seats, making the composition of Illinois' House delegation 11 Republicans and 8 Democrats.

2010 Illinois gubernatorial election

November 2, 2010
Turnout	49.69%
Nominee Pat Quinn Bill Brady Party Democratic Republican Running mate Sheila Simon Jason Plummer Popular vote 1,745,219 1,713,385 Percentage 46.79% 45.94%
County results Quinn:      40–50%      60–70% Brady:      40–50%      50–60%      60–70%      70–80%
Governor before election Pat Quinn Democratic Elected Governor Pat Quinn Democratic

Incumbent Governor Pat Quinn, who became governor after Rod Blagojevich was removed from office, was elected outright to his first full term.

2010 Illinois Attorney General election

November 2, 2010
Turnout	49.36%
Nominee Lisa Madigan Steve Kim Party Democratic Republican Popular vote 2,397,723 1,172,427 Percentage 64.72% 31.65%
County results Madigan:      40–50%      50–60%      60–70%      70–80% Kim:      40–50%      50–60%      60–70%
Attorney General before election Lisa Madigan Democratic Elected Attorney General Lisa Madigan Democratic

Incumbent Democratic attorney general Lisa Madigan won reelection to a third term in office

2010 Illinois Secretary of State election

November 2, 2010
Turnout	49.39%
Nominee Jesse White Robert Enriquez Party Democratic Republican Popular vote 2,590,222 1,001,544 Percentage 69.87% 27.02%
County results White:      40–50%      50–60%      60–70%      70–80%      80–90% Enriquez:      40–50%      50–60%
Secretary of State before election Jesse White Democratic Elected Secretary of State Jesse White Democratic

Incumbent Democratic Secretary of State Jesse White won reelection to a fourth term in office.

Green Party nominee Adrian Frost withdrew before the election.

2010 Illinois State Comptroller election

November 2, 2010
Turnout	48.79%
Nominee Judy Baar Topinka David E. Miller Party Republican Democratic Popular vote 1,927,139 1,497,263 Percentage 52.62% 40.88%
County results Topinka:      40–50%      50–60%      60–70%      70–80% Miller:      40–50%      50–60%
State Comptroller before election Daniel Hynes Democratic Elected State Comptroller Judy Baar Topinka Republican

Incumbent Comptroller Daniel Hynes, a Democrat, did not seek a fourth term. Republican Judy Baar Topinka was elected to succeed him.

2010 Illinois State Treasurer election

November 2, 2010
Turnout	48.58%
Nominee Dan Rutherford Robin Kelly Party Republican Democratic Popular vote 1,811,293 1,650,244 Percentage 49.68% 45.26%
County results Rutherford:      40–50%      50–60%      60–70%      70–80%      80–90% Kelly:      40–50%      50–60%      60–70%
Treasurer before election Alexi Giannoulias Democratic Elected Treasurer Dan Rutherford Republican

Incumbent Treasurer Alexi Giannoulias, a Democrat, did not seek reelection to a second term, instead opting to run for United States Senate. Republican Dan Rutherford was elected to succeed him. As of 2022, this is the last time a Republican was elected Illinois state treasurer.

One-third of the seats of the Illinois Senate were up for election in 2010.

• Illinois State Senate elections, 2010 at Ballotpedia

All of the seats in the Illinois House of Representatives were up for election in 2010.

• Illinois House of Representatives elections, 2010 at Ballotpedia

Multiple judicial positions were up for election in 2010.

• VoteForJudges.org

One measure, the Governor recall amendment, was certified for the 2010 statewide election.[4]

• Illinois 2010 ballot measures at Ballotpedia

Voters approved the Illinois Governor Recall Amendment, allowing voters to hold recall elections of Illinois Governors.[5] In order to be approved, the measure required either 60% support among those specifically voting on the amendment or 50% support among all ballots cast in the elections.[6] The 60% support threshold was exceeded.[5][6]