99chambers

Illinois House of Representatives seat · lines in effect since 2022

Illinois Representative District 4

A district of about 119,000 people, 53% Hispanic, 41% of adults with a bachelor's degree. It votes D+66.8 relative to the nation for president.

Lilian Jiménez (D) · since Nov 8, 2022Next election Nov 7, 2028The 2026 race →

Where it sits among all 118 seats

Every Illinois House of Representatives 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+66.812th most
Democratic
Most DemocraticMost Republican60th seat · the majority lineDistrict 4

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

Every race on these lines

Results recomputed from precinct returns as if today's boundaries had always existed, so years compare like for like.

2022
Illinois House of RepresentativesD+76.5

Outlined: the race for this seat itselfBlank: no race that year

Source: 99chambers results archive: precinct results allocated to current lines; 2026: civicAPIUpdated Nov 7, 2026, 3:01 PM ET

Who lives here, compared

Grey bars show the spread of all 118 seats. Small marks are other seats in Illinois. The black marker is District 4.

Adults with a bachelor's degree41% 63rd pct · 44th of 118 in IL

Higher than 63% of seats.

White adults without a degree8% 6th pct · 111th of 118 in IL

Lower than 94% of seats.

Hispanic residents53% 91st pct · 11th of 118 in IL

Higher than 91% of seats.

Black residents13% 71st pct · 35th of 118 in IL

Higher than 71% of seats.

Asian residents3% 48th pct · 62nd of 118 in IL

Lower than 52% of seats.

People per square mile20,950 97th pct · 5th of 118 in IL

Denser than 97% of seats.

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

Seats most like this one

Nearest seats on demographics, density and lean.

District 39
54% Hispanic · 43% college gradsD+64.1Held DDistrict 3
52% Hispanic · 42% college gradsD+55.4Held DDistrict 40
41% Hispanic · 52% college gradsD+66.4Held DDistrict 60
56% Hispanic · 21% college gradsD+42.8Held D

Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current lines; 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 has held it

These lines took effect in 2022.

  1. Lilian Jiménez (D)
    2027– · Won 2026 unopposed
  2. Lilian Jimenez (D)
    2023–2027 · Won 2022 by 76.5, 2024 unopposed

Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)