Cook County Board of Commissioners
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. It is presided over by its president and the county's chief executive, currently Toni Preckwinkle.
The commissioners, president, and county clerk, 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, 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.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.| District | Commissioner | Residence | Start | Party |
| President | Chicago | 2010 | Democratic | |
| 1 | Chicago | 2023 | Democratic | |
| 2 | Chicago | 2024 | Democratic | |
| 3 | Chicago | 2018 | Democratic | |
| 4 | Chicago | 2013 | Democratic | |
| 5 | Harvey | 2025 | Democratic | |
| 6 | Lynwood | 2018 | Democratic | |
| 7 | Chicago | 2018 | Democratic | |
| 8 | Chicago | 2025 | Democratic | |
| 9 | Rolling Meadows | 2022 | Democratic | |
| 10 | Chicago | 2009 | Democratic | |
| 11 | Chicago | 1992 | Democratic | |
| 12 | Chicago | 2018 | Democratic | |
| 13 | Skokie | 2022 | Democratic | |
| 14 | Glenview | 2018 | Democratic | |
| 15 | Mount Prospect | 2018 | Democratic | |
| 16 | Cicero | 2020 | Democratic | |
| 17 | Palos Park | 2015 | Republican |
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 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, Maria Pappas, Oscar Stanton De Priest, Harry H. Semrow, and Bobbie L. Steele.
Since 1994
| Name | Party | Tenure | Terms served |
| Danny Davis | Democratic | Dec. 1994–Jan. 1997 | term |
| Darlena Williams-Burnett | Democratic | 1997–Dec. 1998 | term |
| Earlean Collins | Democratic | Dec. 1998–Dec. 2014 | 4 terms |
| Richard Boykin | Democratic | Dec. 2014–Dec. 2018 | 1 term |
| Brandon Johnson | Democratic | Dec. 2018–May 2023 | terms |
| Tara Stamps | Democratic | June 2023–present |
| Name | Party | Tenure | Terms served |
| Jerry Butler | Democratic | Dec. 1994–Dec. 2018 | 6 terms |
| Bill Lowry | Democratic | Dec. 2018–present |
| Name | Party | Tenure | Terms served |
| Deborah Sims | Democratic | Dec. 1994–Dec. 2022 | 7 terms |
| Monica Gordon | Democratic | Dec. 2022–Jan. 2025 | - |
| Kisha McCaskill | Democratic | Jan. 2025–present |
| Name | Party | Tenure | Terms served |
| Joseph Mario Moreno | Democratic | Dec. 1994–Dec. 2010 | 4 terms |
| Chuy García | Democratic | Dec. 2010–Dec. 2018 | 2 terms |
| Alma E. Anya | Democratic | Dec. 2018–present |
| Name | Party | Tenure | Terms served |
| Peter N. Silvestri | Republican | Dec. 1994–present |
| Name | Party | Tenure | Terms served |
| John P. Daley | Democratic | Dec. 1994–present |
| Name | Party | Tenure | Terms served |
| Calvin Sutker | Democratic | Dec. 1994–Dec. 2002 | 2 terms |
| Larry Suffredin | Democratic | Dec. 2002–Dec. 2022 | 5 terms |
| Josina Morita | Democratic | Dec. 2022–present |
| Name | Party | Tenure | Terms served |
| Carl R. Hansen | Republican | Dec. 1994–Dec. 2006 | 3 terms |
| Tim Schneider | Republican | Dec. 2006–Dec. 2018 | 3 terms |
| Kevin B. Morrison | Democratic | Dec. 2018–present |
| Name | Party | Tenure | Terms served |
| Herb Schumann | Republican | Dec. 1994–Dec. 2002 | 2 terms |
| Elizabeth Ann Doody Gorman | Republican | Dec. 2002–July 20, 2015 | |
| Sean M. Morrison | Republican | July 2015–present |