99chambers

Illinois State Senate seat · lines in effect since 2022

Illinois Legislative District 47

A district of about 252,000 people, 24% of adults with a bachelor's degree. It votes R+30.9 relative to the nation for president.

Neil Anderson (R) · since Nov 4, 2014Next 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.

R+30.952nd most
Democratic
Most DemocraticMost Republican30th seat · the majority lineDistrict 47

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.

201620182020
U.S. SenateR+12.7No raceR+19.1
GovernorNo raceR+13.0No race

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 47.

Adults with a bachelor's degree24% 10th pct · 53rd of 59 in IL

Lower than 90% of seats.

White adults without a degree69% 97th pct · 3rd of 59 in IL

Higher than 97% of seats.

Hispanic residents3% 9th pct · 54th of 59 in IL

Lower than 91% of seats.

Black residents2% 14th pct · 51st of 59 in IL

Lower than 86% of seats.

Asian residents1% 14th pct · 51st of 59 in IL

Lower than 86% of seats.

People per square mile41 0th pct · 59th of 59 in IL

Least dense of 59 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 53
26% college gradsR+35.4Held RDistrict 59
24% college gradsR+35.9Held RDistrict 45
25% college gradsR+21.5Held RDistrict 51
25% college gradsR+45.1Held R

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. Neil Anderson (R)
    2023– · Won 2022 unopposed, 2026 unopposed

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