Cook County Board of Commissioners 9th district is a single-member

electoral district An electoral (congressional, legislative, etc.) district, sometimes called a constituency, riding, or ward, is a geographical portion of a political unit, such as a country, state or province, city, or administrative region, created to provi ...

for the

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, Illinois, Cook County, which includes the City ...

. The district represents areas of

suburb A suburb (more broadly suburban area) is an area within a metropolitan area. They are oftentimes where most of a metropolitan areas jobs are located with some being predominantly residential. They can either be denser or less densely populated ...

Cook County Cook County is the most populous county in the U.S. state of Illinois and the second-most-populous county in the United States, after Los Angeles County, California. More than 40 percent of all residents of Illinois live within Cook County. ...

. It is currently represented by Maggie Tevor, a

Democrat Democrat, Democrats, or Democratic may refer to: Politics *A proponent of democracy, or democratic government; a form of government involving rule by the people. *A member of a Democratic Party: **Democratic Party (Cyprus) (DCY) **Democratic Part ...

History

The district was established in 1994, when the board transitioned from holding elections in individual districts, as opposed to the previous practice of having two

multi-member districts An electoral (congressional, legislative, etc.) district, sometimes called a constituency, riding, or ward, is a geographical portion of a political unit, such as a country, state or province, city, or administrative region, created to provid ...

districts: one for ten members from the city of

Chicago Chicago is the List of municipalities in Illinois, most populous city in the U.S. state of Illinois and in the Midwestern United States. With a population of 2,746,388, as of the 2020 United States census, 2020 census, it is the List of Unite ...

and another for seven members from suburban Cook County.

Geography

The district has, since its inception, covered portions of

's Far Northwest Side and its northwest suburbs.

1994 boundaries

When the district was first established, the district represented parts of the Northwest side of Chicago and the northern suburbs of Cook County, and the western suburbs of Cook County.

2001 redistricting

New boundaries were adopted in August 2001, with

redistricting Redistricting in the United States is the process of drawing electoral district boundaries. For the United States House of Representatives, and state legislatures, redistricting occurs after each ten-year census. The U.S. Constitution in Art ...

taking place following the 2000 United States Census. In regards to

townships A township is a form of human settlement or administrative subdivision. Its exact definition varies among countries. Although the term is occasionally associated with an urban area, this tends to be an exception to the rule. In Australia, Canad ...

and equivalent jurisdictions, the district's redistricted boundaries included portions of the city of Chicago and portions of the

Leyden Leiden ( ; ; in English and archaic Dutch also Leyden) is a city and municipality in the province of South Holland, Netherlands. The municipality of Leiden has a population of 127,046 (31 January 2023), but the city forms one densely connecte ...

Maine Maine ( ) is a U.S. state, state in the New England region of the United States, and the northeasternmost state in the Contiguous United States. It borders New Hampshire to the west, the Gulf of Maine to the southeast, and the Provinces and ...

, Norwood Park, Oak Park, and River Forest townships.

2012 redistricting

The district currently, as

redistricted Redistricting in the United States is the process of drawing electoral district boundaries. For the United States House of Representatives, and state legislatures, redistricting occurs after each ten-year census. The U.S. Constitution in Art ...

in 2012 following the 2010 United States Census, includes the Norwood Park and Dunning areas of Chicago as well as the suburbs of Arlington Heights,

Des Plaines Des Plaines () is a city in Cook County, Illinois, United States. Per the 2020 census, the population was 60,675. The city is a suburb of Chicago and is located just north of O'Hare International Airport. It is situated on and is named after t ...

, Elmwood Park, Franklin Park, Glenview, Harwood Heights, Melrose Park, Morton Grove, Mount Prospect, Niles,

Norridge Norridge is a village in Leyden Township, Cook County, Illinois, United States. The village and its neighbor to the east, Harwood Heights, together form an enclave within the city of Chicago. Norridge is sometimes referred to as the "Island Wi ...

, Park Ridge, Prospect Heights, River Forest, River Grove,

Rosemont Rosemont may refer to: People Rosemont is a surname. Notable people with this surname include: * David A. Rosemont, American television producer * Franklin Rosemont (1943–2009), American poet, artist, historian * Norman Rosemont (1924–2018), ...

and Schiller Park. In regards to townships and equivalent jurisdictions, it includes portions of the city of Chicago, and portions of Elk Grove, Leyden, Maine, Northfield, Norwood Park, River Forest, and Wheeling townships, as well as a small, uninhabited portion of

Proviso Proviso means ''a conditional provision to an agreement''. It may refer to *Proviso Township, Cook County, Illinois, United States **Proviso Township High Schools District 209 that comprises ***Proviso East High School ***Proviso West High School * ...

. The district is 59.54 square

mile The mile, sometimes the international mile or statute mile to distinguish it from other miles, is a imperial unit, British imperial unit and United States customary unit of length; both are based on the older English unit of Unit of length, le ...

s (38,103.37

acre The acre ( ) is a Unit of measurement, unit of land area used in the Imperial units, British imperial and the United States customary units#Area, United States customary systems. It is traditionally defined as the area of one Chain (unit), ch ...

s).

2022 redistricting

The district was redistricted following the 2020 United States Census. Its redistricting was seen as having made the district's voter demography more Republican-leaning than it had previously been. The overall boundaries of the district are similar to the previous ones, containing portions of the cities of Chicago, River Forest, Elmwood Park, River Grove, Rosemont, Harwood Heights, Norridge, Park Ridge, Niles, Glenview, Des Plaines, Mount Prospect, Arlington Heights, Prospect Heights, Rolling Meadows, and an unpopulated portion of Melrose Park.

Politics

The district has only ever been represented by Republican commissioner Peter N. Silvestri. At its inception, the district was originally projected to be a "swing district", with both major parties having a fair chance of winning the district.

List of commissioners representing the district

Election results

, - , colspan=16 style="text-align:center;" ,

9th district general elections , - !Year !Winning candidate !Party !Vote (pct) !Opponent !Party ! Vote (pct) !Opponent !Party ! Vote (pct) , - ,

1994 The year 1994 was designated as the " International Year of the Family" and the "International Year of Sport and the Olympic Ideal" by the United Nations. In the Line Islands and Phoenix Islands of Kiribati, 1994 had only 364 days, omitti ...

, , Peter N. Silvestri , , Republican , , , , Marco Domico , , Democratic , , , , , , - ,

1998 1998 was designated as the ''International Year of the Ocean''. Events January * January 6 – The ''Lunar Prospector'' spacecraft is launched into orbit around the Moon, and later finds evidence for Lunar water, frozen water, in soil i ...

, , Peter N. Silvestri , , Republican , , 47,720 (55.76%) , , Joan A. Sullivan , , Democratic , , 37,854 (44.24%) , , , , - ,

2002 The effects of the September 11 attacks of the previous year had a significant impact on the affairs of 2002. The war on terror was a major political focus. Without settled international law, several nations engaged in anti-terror operation ...

, , Peter N. Silvestri , , Republican , , 50,343 (53.67%) , ,

Robert Martwick Robert F. Martwick Jr. is a Democratic Party (United States), Democratic member of the Illinois Senate, representing the 10th District since June 28, 2019. The district, includes Chicago’s northwest side and some of its surrounding suburbs. Pri ...

, , Democratic , , 43,452 (46.33%) , , , , - ,

2006 2006 was designated as the International Year of Deserts and Desertification. Events January * January 1– 4 – Russia temporarily cuts shipment of natural gas to Ukraine during a price dispute. * January 12 – A stampede during t ...

, , Peter N. Silvestri , , Republican , , 47,881 (56.61%) , , Jodi L. Biancalana , , Democratic , , 36,701 (43.39%) , , , , - ,

2010 The year saw a multitude of natural and environmental disasters such as the 2010 Haiti earthquake, the Deepwater Horizon oil spill, and the 2010 Chile earthquake. The 2009 swine flu pandemic, swine flu pandemic which began the previous year ...

, , Peter N. Silvestri , , Republican , , 47,333 (55.29%) , , Cary Capparelli , , Democratic , , 31,186 (36.43%) , , Brock Merck , ,

Green Green is the color between cyan and yellow on the visible spectrum. It is evoked by light which has a dominant wavelength of roughly 495570 nm. In subtractive color systems, used in painting and color printing, it is created by a com ...

, , 7,084 (8.28%) , - ,

2014 The year 2014 was marked by the surge of the Western African Ebola epidemic, West African Ebola epidemic, which began in 2013, becoming the List of Ebola outbreaks, most widespread outbreak of the Ebola, Ebola virus in human history, resul ...

, , Peter N. Silvestri , , Republican , , 51,290 (63.06%) , , Frank L. McPartlin , , Democratic , , 30,040 (36.94%) , , , , - ,

2018 Events January * January 1 – Bulgaria takes over the Presidency of the Council of the European Union, after the Estonian presidency. * January 4 – SPLM-IO rebels loyal to Chan Garang Lual start a raid against Juba, capital of ...

, , Peter N. Silvestri , , Republican , , 55,612 (52.24%) , , Frank L. McPartlin , , Democratic , , 50,839 (47.76%) , , , , - ,

2022 The year began with another wave in the COVID-19 pandemic, with SARS-CoV-2 Omicron variant, Omicron spreading rapidly and becoming the dominant variant of the SARS-CoV-2 virus worldwide. Tracking a decrease in cases and deaths, 2022 saw ...

, , Maggie Trevor , , Democratic , , 53,531 (50.32%) , , Matt Podgorski , , Republican , , 52,851 (49.68%) , , ,

References

{{Cook County, Illinois government Cook County Board of Commissioners districts Constituencies established in 1994 1994 establishments in Illinois