Illinois State Senate seat · lines in effect since 2022

Illinois Legislative District 1

A district of about 216,000 people, 73% Hispanic, 21% of adults with a bachelor's degree. It votes D+36.2 relative to the nation for president.

Where it sits among all 59 seats

Every Illinois State Senate seat by partisan lean, from most Democratic to most Republican. Lean is the seat's presidential vote on current lines, relative to the nation.

D+36.216th most
Democratic
Most DemocraticMost Republican30th seat · the majority lineDistrict 1

Source: 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET

Who lives here, compared

Grey bars show the spread of all 59 seats. Small marks are other seats in Illinois. The black marker is District 1.

Adults with a bachelor's degree21% 2nd pct · 58th of 59 in IL

Lower than 98% of seats.

White adults without a degree14% 17th pct · 49th of 59 in IL

Lower than 83% of seats.

Hispanic residents73% 100th pct · 1st of 59 in IL

Highest of 59 seats.

Black residents4% 38th pct · 37th of 59 in IL

Lower than 62% of seats.

Asian residents3% 45th pct · 33rd of 59 in IL

Lower than 55% of seats.

People per square mile8,654 86th pct · 9th of 59 in IL

Denser than 86% of seats.

Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current linesUpdated Oct 13, 2026, 5:06 AM ET