The Cook County Board of Commissioners is a legislative body made up of 17 commissioners who are elected by district, and a president who is elected county-wide, all for four-year terms. Cook County is the United States' second most populous county, with a population of 5.2 million residents, and the city of Chicago as the county seat. The county board sets policy and laws for the county regarding property, public health services, public safety, and maintenance of county highways.About the Cook County Board of Commissioners It is presided over by its president and the county's chief executive, currently Toni Preckwinkle.
The commissioners, president, county clerk (who serves as clerk of the board) and county treasurer, hold the same offices ex officio on the separate governmental taxing body, the Cook County Forest Preserve District Board of Commissioners.
History
Until 1870, Cook County had been governed under the "township supervisor" system, under which each Chicago ward elected a supervisor, and each township elected one or more as well depending on population, creating a board of 50 members, less than half from Chicago. In the wake of a scandal involving then board chairman J. J. Kearney (who was eventually unseated and expelled from the board), the new commission was created pursuant to an amendment to the state constitution, initially with ten Chicago commissioners elected from groups of wards within the city, and five members elected from groups of townships outside the city, presided over by a chairman elected by the board from among their own number. The commissioners were elected for three-year terms, on a staggered basis. The first meeting of the new board took place December 4, 1871; they elected businessman and Civil War general Julius White of Evanston as their chairman.Johnson, Charles B. Growth of Cook County Vol. 1: A History of the Large Lake-Shore County That Includes Chicago Chicago: Board of Commissioners of Cook County, Ill., 1960; pp. 91-101
Transition to single-member constituencies The 1870 version of the Illinois Constitution had established the Board of Commissioners as having fifteen members in total, with ten representing the municipal boundaries of City of Chicago and five from the suburban portions of the county. The separation of the seats into ones elected from the city and ones elected from the suburban county was meant to prevent the city from dominating county board elections, as the suburbs had far less overall population than the city in 1870. In 1870, the city had approximately two-thirds of the county's population, hence why they were given two-thirds of the seats. By the 1970s, the suburban share of the county's population was significantly higher. However, since the 1870 constitution including no clause for county reapportionment, the number of suburban seats had remained stagnant since 1870 causing malapportionment.
In light of the malapportionment concerns, at the 1970 Constitutional Convention (which produced the current constitution of the state, ultimately ratified in December 1970), county board members Carl R. Hansen and Floyd Fulle presented a proposal that the new constitution expand the board initially from fifteen to twenty-one members (13 city seats, 8 suburban seats) with reapportionment of those twenty-one seats after every decennial United States Census. Hansen's rationale for increasing the size of the body was that, he believed, it would create a "more workable legislative body" able to have commissioners carry-out the workload of five or six major committees.
Ultimately, the constitutional convention instead approved a different proposal, which permitted the board to (by passing an ordinance) abolish its two multi-member districts (one city, one suburban), and instead divide itself into single-member districts which could straddle across the city's municipal boundaries (allowing some seats to include both suburban and city constituents). Some suburban Cook County delegates, however, expressed concern that a switch to single-member districts could ultimately weaken Republican representation by allowing the Democratic majority to gerrymander the seats. One Republican suburban Cook County delegate, Joseph Tescon, sought to add language that would only allow a switch to single-member districts to occur if first approved by voters in a countywide referendum, but the convention's delegates voted 54–31 to reject Tescon's clause. A switch to single-member constituencies ultimately did not occur until the 1990s.
Elections The board's seventeen commissioners are elected from individual constituencies for four year terms, with elections for all constituencies held during United States midterm elections. Its president is elected at-large to a four-year term in elections held during United States midterm elections.
Up through 1990, commissioners were elected through two sets of elections, one held in Chicago to elect ten commissioners and another held in suburban Cook County to elect the remaining seven commissioners. In 1994, the board switched to having commissioners elected from individual constituencies.
Commissioners
Current This is a list of the Cook County Commissioners in order by district. This list is current as of December 2022.
DistrictCommissionerResidenceStartPartyPresident(at large)Chicago2010Democratic1Chicago2023 Democratic2Chicago2024 Democratic3Chicago2018Democratic4Chicago2013Democratic5Harvey2025Democratic6Lynwood2018Democratic7Chicago2018Democratic8Chicago2025Democratic9Rolling Meadows2022Democratic10Chicago2009Democratic11Chicago1992Democratic12Chicago2018Democratic13Skokie2022Democratic14Glenview2018Democratic15Mount Prospect2018Democratic16Cicero2020Democratic17Palos Park2015Republican
Past Before 1994 Individuals who, before 1994, served as president of the Cook County Board of Commissioners included J. Frank Aldrich, Edward J. Brundage, Anton Cermak, George Dunne, Richard B. Ogilvie, Richard Phelan, Dan Ryan Jr. Charles C. P. Holden, and Seymour Simon. The first county board chairman (a role which preceded the creation of the president position) was Julius White.
Individuals who served as commissioners before the move to individual constituencies in 1994 included George Marquis Bogue, Jerry Butler, Carl R. Chindblom, Marco Domico, Martin Emerich, Carter Harrison III, John Humphrey, John Jones, Walter J. LaBuy, Lillian Piotrowski, Francis Cornwall Sherman, Seymour Simon, Horace M. Singer, Alanson Sweet, and William Hale Thompson. Others included suburban members Allan C. Carr, Carl R. Hansen, Herb Schumann; and Chicago members Charles Bernardini, Charles S. Bonk, Jerry Butler, John P. Daley, Danny K. Davis, Ted Lechowicz, Mary McEnerney, Maria Pappas, Oscar Stanton De Priest, Harry H. Semrow, and Bobbie L. Steele.
Since 1994 + Members serving (by term)TermMembersParty balance1994–1998 President: John Stroger (D) 1st district: Danny Davis (D) 2nd district: Bobbie L. Steele (D) 3rd district: Jerry Butler (D) 4th district: John Stroger (D) 5th district: Deborah Sims (D) 6th district: Barclay "Bud" Fleming (R) 7th district: Joseph Mario Moreno (D) 8th district: Roberto Maldonado (D) 9th district: Peter N. Silvestri (R) 10th district: Maria Pappas (D) 11th district: John P. Daley (D) 12th district: Ted Lechowicz (D) 13th district: Calvin Sutker (D) 14th district: Richard Seibel (R) 15th district: Carl R. Hansen (R) 16th district: Allan C. Carr (R) 17th district: Herb Schumann (R) President: DemocratCommissioners: 11 (D), 6 (R)1998–2002 President: John Stroger (D) 1st district: Danny Davis (D) through Jan. 1999; Darlena Williams–Burnett (D) beginning in 1999 2nd district: Bobbie L. Steele (D) 3rd district: Jerry Butler (D) 4th district: John Stroger (D) 5th district: Deborah Sims (D) 6h district: William Moran (D) 7th district: Joseph Mario Moreno (D) 8th district: Roberto Maldonado (D) 9th district: Peter N. Silvestri (R) 10th district: Mike Quigley (D) 11th district: John P. Daley (D) 12th district: Ted Lechowicz (D) 13th district: Calvin Sutker (D) 14th district: Gregg Goslin (R) 15th district: Carl R. Hansen (R) 16th district: Allan C. Carr (R) 17th district: Herb Schumann (R) President: DemocratCommissioners: 12 (D), 5 (R)2002–2006 President: John Stroger (D) through Aug. 2006; Bobbie L. Steele (D) beginning in Aug. 2006 1st district: Earlean Collins (D) 2nd district: Bobbie L. Steele (D) 3rd district: Jerry Butler (D) 4th district: John Stroger (D) through Nov. 2006; William Beavers (D) beginning in Nov. 2006 5th district: Deborah Sims (D) 6th district: Joan Patricia Murphy (D) 7th district: Joseph Mario Moreno (D) 8th district: Roberto Maldonado (D) 9th district: Peter N. Silvestri (R) 10th district: Mike Quigley (D) 11th district: John P. Daley (D) 12th district: Forrest Claypool (D) 13th district: Larry Suffredin (D) 15th district: Gregg Goslin (R) 15th district: Carl R. Hansen (R) 16th district: Tony Peraica (R) 17th district: Elizabeth Ann Doody Gorman (R) President: DemocratCommissioners: 12 (D), 5 (R)2006–2010 President: Todd Stroger 1st district: Earlean Collins (D) 2nd district: Robert Steele (D) 3rd district: Jerry Butler (D) 4th district: William Beavers (D) 5th district: Deborah Sims (D) 6th district: Joan Patricia Murphy (D) 7th district: Joseph Mario Moreno (D) 8th district: Roberto Maldonado (D) through Aug. 2009; Edwin Reyes (D) since Aug. 2009 9th district: Peter N. Silvestri (R) 10th district: Mike Quigley (D) through Apr. 2009; Bridget Gainer (D) since Apr. 2009 11th district: John P. Daley (D) 12th district: Forrest Claypool (D) 13th district:Larry Suffredin(D) 14th district: Gregg Goslin (R) 15th district: Tim Schneider (R) 16th district: Tony Peraica (R) 17th district: Elizabeth Ann Doody Gorman (R) President: DemocratCommissioners: 12 (D), 5 (R)2010–2014 President: Toni Preckwinkle (D) 1st district: Earlean Collins (D) 2nd district: Robert Steele (D) 3rd district: Jerry Butler (D) 4th district: William Beavers (D) through Mar. 2013; Stanley Moore (D) beginning in Apr. 2013 5th district: Deborah Sims (D) 6th district: Joan Patricia Murphy (D) 7th district: Chuy García (D) 8th district: Edwin Reyes (D) 9th district: Peter N. Silvestri (R) 10th district: Bridget Gainer (D) 11th district: John P. Daley (D) 12th district: John Fritchey (D) 13th district: Larry Suffredin (D) 14th district: Gregg Goslin (R) 15th district: Tim Schneider (R) 16th district: Jeff Tobolski (D) 17th district: Elizabeth Ann Doody Gorman (R) President: DemocratCommissioners: 13 (D), 4 (R)2014–2018 President: Toni Preckwinkle (D) 1st district: Richard Boykin (D) 2nd district: Robert Steele (D) through June 2017; Dennis Deer (D) beginning in July 2017 3rd district: Jerry Butler (D) 4th district: Stanley Moore (D) 5th district: Deborah Sims (D) 6th district: Joan Patricia Murphy (D) through Sep. 2016; Edward Moody (D) beginning in Oct. 2016 7th district: Chuy García (D) 8th district: Luis Arroyo Jr. (D) 9th district: Peter N. Silvestri (R) 10th district: Bridget Gainer (D) 11th district: John P. Daley (D) 12th district: John Fritchey (D) 13th district: Larry Suffredin (D) 14th district: Gregg Goslin (R) 15th district: Tim Schneider (R) 16th district: Jeff Tobolski (D) 17th district: Elizabeth Ann Doody Gorman (R) through July 2015; Sean M. Morrison (R) beginning in July 2015 President: DemocratCommissioners: 13 (D), 4 (R)2018–2022 President: Toni Preckwinkle (D) 1st district: Brandon Johnson (D) 2nd district: Dennis Deer (D) 3rd district: Bill Lowry (D) 4th district: Stanley Moore (D) 5th district: Deborah Sims (D) 6th district: Donna Miller (D) 7th district: Alma E. Anya (D) 8th district: Luis Arroyo Jr. (D) 9th district: Peter N. Silvestri (R) 10th district: Bridget Gainer (D) 11th district: John P. Daley (D) 12th district: Bridget Degenen (D) 13th district: Larry Suffredin (D) 14th district: Scott R. Britton (D) 15th district: Kevin B. Morrison (D)