Cook County Sheriff
Cook County, Illinois
My vote power
Average
Election date
November 3, 2026 · General election
How do we calculate my vote power?
What goes into the rating: Representation: how much weight one vote carries here compared with a statewide vote — the smaller the district, the more each vote counts. Decisiveness: how likely this race is to be close, based on past results or current analyst ratings, plus the number of candidates.
Representation: Average · 54 out of 100
This district covers a large share of its state, so each vote carries about average weight — like a vote in a statewide race. About 5,182,090 people live here.
Show the representation math
score = 50 + 50 × ln(state population ÷ this district's) ÷ ln(50,000) = 50 + 50 × ln(12,694,798 ÷ 5,182,090) ÷ ln(50,000) = 54.14, measured against a statewide vote in IL (grades: 66+ high, 55+ above average, 33+ average, otherwise low; a statewide race is the 50 baseline)
Decisiveness: Unknown
No analyst ratings or past results for this contest yet.
Average representation → My vote power: Average.
Some data is missing, so this rating is based on partial information.
About this office
- Running police patrols and deputies in the county
- Running the county jail
- Carrying out evictions, warrants, and other court orders
Affects: Immigration, Public Safety and Crime Control, Gun Control,
Candidates
Libertarian · declared
Brad Sandefur has worked for the Cook County Sheriff's Office since 1990 in correctional, police, tactical, investigative, and shift-command roles. A former Marine Corps military police officer, he holds a master's degree in criminal justice.
Democratic · Incumbent · declared
Thomas J. Dart has served as Cook County Sheriff since 2006. An attorney and former prosecutor, he served in the Illinois House and Senate and chaired judiciary and prison-oversight committees.
Records: Public Safety and Crime Control 9 for, Civil Rights 1 for, Immigration 1 for
Source: en.wikipedia.org