Illinois 29th State Senate District · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1892–2024 (partial returns from 1876) · 38 presidential cycles · 38 with a vote-share denominator · 34 with a national benchmark
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
Joe Biden2020
67.2%
76,660 votes · D+36.0 · modeled estimate
Runner-up · Barack Obama, 2008 · 66.3%
Republican
Warren G. Harding1920
78.8%
23,860 votes · R+64.4 · modeled estimate
Runner-up · Calvin Coolidge, 1924 · 70.1%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
76,660votes
67.2% of the vote · D+36.0 · modeled estimate
Runner-up · Kamala Harris, 2024 · 70,028 votes
Republican
Richard Nixon1972
54,319votes
64.0% of the vote · R+28.6 · modeled estimate
Runner-up · Dwight D. Eisenhower, 1956 · 53,086 votes
Best relative to the U.S.
This Place’s margin against the national margin in the same election — positive when it leaned toward the party more than the country did.
Democratic
Kamala Harris2024
+35.0pts D vs U.S.
Place D+33.5 · U.S. R+1.5 · modeled estimate
Runner-up · Hillary Clinton, 2016 · +32.3 pts
Republican
Warren G. Harding1920
+38.2pts R vs U.S.
Place R+64.4 · U.S. R+26.2 · modeled estimate
Runner-up · William McKinley, 1896 · +34.1 pts
current representation
Current officeholders
DJulie MorrisonState Senate · 29
State legislative officeholder from OpenStates nightly current-legislator data.
U.S. House elections · 1 House
Senate and governor results are in the Office selector at the top of this page.
U.S. House
Each row is a county-allocated estimate of U.S. House votes for this district — county returns apportioned onto its boundary, not precinct-counted. “Vote lead” is the estimated local lead here, not necessarily the winner of the full contest.
Source · Akashic county-allocated estimate from certified county returns, House; not precinct-counted.
Year
Vote lead
Democratic
Republican
Total
2024
D
65.9%58,097
34.1%30,039
88,136
Anchored in rural and small-town central Illinois, this district backed the 2024 Republican presidential nominee by 28.4 points, making it a consistent outlier in a state that trends Democratic at the statewide level.
Across the recorded series it reached a Democratic high of 36.0 points in 2020 and a Republican high of 64.4 points in 1920. Between 2020 and 2024 the district moved 2.5 points toward the Republican candidate; the 2024 margin was 33.5 points.
A population of 216,815, a 70% non-Hispanic-white share, and a median household income of $134,909 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 27 and State Senate District 9.
Akashic
Political twins — state-senate districts
The state-senate districts whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons → · Or open the source-auditable district brief for electoral baseline, electorate, current-cycle coverage, geography, official dates, and methodology. Open campaign intelligence report →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Illinois 29th State Senate District. Akashic. https://akashic.app/sld-upper/17029/. Accessed May 20, 2026. License: CC BY 4.0.
How did Illinois 29th State Senate District vote in 2024?
In 2024, Illinois 29th State Senate District voted Democratic by 33.5 points (D+33.5), carried by the Democratic candidate. Out of 106,202 votes cast, 70,028 went Democratic and 34,432 went Republican.
When did Illinois 29th State Senate District last vote Republican?
The most recent presidential election in which Illinois 29th State Senate District voted Republican was 1988.
How many people live in Illinois 29th State Senate District?
Illinois 29th State Senate District has a population of 216,815 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Illinois 29th State Senate District?
Median household income in Illinois 29th State Senate District is $134,909 — above the national median of $80,734. The Illinois state median is $83,390.
What is the political history of Illinois 29th State Senate District?
Akashic tracks 38 presidential elections in Illinois 29th State Senate District from 1876 to 2024. Of those, 11 went Democratic and 26 went Republican.