Cook County Board of Commissioners 8th district is a single-member electoral district for the Cook County Board of Commissioners. It is currently represented by Jessica Vasquez, a Democrat.
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: one for ten members from the city of Chicago and another for seven members from suburban Cook County.
Throughout its history, the district has been located in the Near Northwest Side of Chicago.
When the district was first established, it represented parts of the Near Northwest Side of Chicago.
New boundaries were adopted in August 2001, with redistricting taking place following the 2000 United States census. The boundaries were entirely within the city of Chicago. It represented Near Northwest Chicago.
The district currently, as redistricted in 2012 following the 2010 United States census, continued to be entirely located entirely within the city boundaries of Chicago, and largely resembled the shape that the district already had before the redistricting.
The district was .
The district, as redistricted in 2022 following the 2020 United States census is entirely located in the city of Chicago.
The district has only ever been represented by Democratic commissioners. Only once has another party run a nominee in an election in this district.
|- | colspan=16 style="text-align:center;" |Cook County Board of Commissioners 8th district general elections |- !Year !Winning candidate !Party !Vote (pct) !Opponent !Party ! Vote (pct) |- |1994 | |Roberto Maldonado | | Democratic | | | | | |- |1998 | |Roberto Maldonado | | Democratic | | 31,356 (100%) | | | |- |2002 | |Roberto Maldonado | | Democratic | |38,741 (100%) | | | |- |2006 | |Roberto Maldonado | | Democratic | |38,795 (100%) | | | |- |2010 | |Edwin Reyes | | Democratic | |37,147 (100%) | | | |- |2014 | |Luis Arroyo Jr. | | Democratic | |37,529 (100%) | | | |- |2018 | |Luis Arroyo Jr. | | Democratic | |73,296 (89.29%) | | Walter Zarnecki | | Republican | | 8,792 (10.71%) |- |2022 | |Anthony Joel Quezada | | Democratic | |53,400 (100%) | | |