99chambers

Illinois State Senate seat · lines in effect since 2022

Illinois Legislative District 11

A district of about 227,000 people, 62% Hispanic, 24% of adults with a bachelor's degree. It votes D+22.9 relative to the nation for president.

Mike Porfirio (D) · since Nov 8, 2022Next election Nov 5, 2030The 2026 race →

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+22.921st most
Democratic
Most DemocraticMost Republican30th seat · the majority lineDistrict 11

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 State SenateD+32.3

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 59 seats. Small marks are other seats in Illinois. The black marker is District 11.

Adults with a bachelor's degree24% 7th pct · 55th of 59 in IL

Lower than 93% of seats.

White adults without a degree25% 33rd pct · 40th of 59 in IL

Lower than 67% of seats.

Hispanic residents62% 97th pct · 3rd of 59 in IL

Higher than 97% of seats.

Black residents3% 29th pct · 42nd of 59 in IL

Lower than 71% of seats.

Asian residents2% 34th pct · 39th of 59 in IL

Lower than 66% of seats.

People per square mile6,680 79th pct · 13th of 59 in IL

Denser than 79% 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 1
73% Hispanic · 21% college gradsD+36.2Not up in 2026District 25
41% Hispanic · 35% college gradsD+18.9Not up in 2026District 43
34% Hispanic · 26% college gradsD+14.5Not up in 2026District 39
39% Hispanic · 38% college gradsD+46.3Held 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. Mike Porfirio (D)
    2023– · Won 2022 by 32.3, 2026 unopposed

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