state house districtIllinois 105th State House District
presidential margin
2004–2024 · Democratic minus Republican
2004R+24.9
2008R+13.1
2012R+27.0
2016R+29.2
2020R+26.3
2024R+27.1
net swing · 2004→2024R+2.2R+24.9 → R+27.1
vs. U.S. · 2024R+25.6R+27.1 vs R+1.5
presidential returns
2024 turnout 70.2% of 81,571 citizens 18+
Year
Democrat
Republican
Others
Total
CVAP
Turnout
2024
20,181
35,701
1,353
57,235
81,571
70.2%
2020
20,659
35,916
1,327
57,902
81,941†
70.7%
2016
16,533
31,887
4,186
52,606
83,112†
63.3%
2012
17,689
31,157
1,112
49,958
82,879†
60.3%
2008
22,012
28,809
1,249
52,070
81,323†
64.0%
2004
19,100
31,840
259
51,199
79,768†
64.2%
† Citizen voting-age population estimated for prior cycles from the constituent-county ACS trend anchored to the current figure. Source: ACS 5-year, table B05003.
——
D+60R+60
20042024
Boundary by 2024 margin · Precinct returns · VEST · MIT Election Lab
People and households
Who lives here
Exact values for this place, its state, and the United States.
Race · ethnicity · ancestry
Communities and origins
GroupIL HD 105IllinoisUnited States
German31.9%16.1%12.5%
Irish14.2%10.6%9.4%
English12.3%6.9%9.5%
Italian5.4%5.4%4.8%
American5.2%3.3%5.3%
Polish3.9%6.0%2.2%
Swedish1.9%1.5%—
French1.8%0.7%1.6%
Mexican2.9%14.4%11.3%
Puerto Rican0.2%1.7%1.8%
African American†1.7%12.1%9.9%
Asian Indian0.8%2.1%1.4%
Chinese0.2%1.0%1.3%
Hispanic or Latino counts residents of any race; the race groups count only their non-Hispanic residents, so the groups are mutually exclusive and sum to 100%. Expand a row to see ancestries reported within that group.
Age and life stage
Measure
IL HD 105
Illinois
United States
Median age
41.5
39.1
39.1
Age 18–24
9.6%
9.1%
9.2%
Age 65 and older
19.5%
16.9%
17.2%
Household economy
Measure
IL HD 105
Illinois
United States
Median household income
$85,019
$83,390
$84,427
Poverty rate
7.5%
11.8%
12.5%
Bachelor's degree or higher (25+)
31.0%
37.9%
35.6%
Languages at home
Measure
IL HD 105
Illinois
United States
Speaks a non-English language at home
5.2%
24.1%
22.3%
Spanish
2.8%
14.0%
13.6%
Religious landscape
Measure
IL HD 105
Illinois
United States
Catholic
—
24.2%
18.6%
Evangelical Protestant
—
11.7%
16.5%
Unclaimed / not counted
—
49.2%
51.5%
American Community Survey 2024 5-year (CVAP, income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024 · 2020 U.S. Religion Census (ASARB) — congregational adherents; unclaimed is the residual not counted by congregations.
Illinois 105th State House District
presidential history
Presidential margin, 2004–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2004
−24.9%
2008
−13.1%
2012
−27.0%
2016
−29.2%
2020
−26.3%
2024
−27.1%
DemocraticRepublican
6 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024). Swing · margin change from the prior cycle. vs U.S. · margin relative to the national result that year. Third-party votes in 2012 are allocated from certified county totals by this place's share of each county's two-party vote — that cycle's precinct source records two-party splits. † 2004 sub-county results are estimated: the source's block-level detail for this cycle was unreliable — either county/municipality-level consolidated reporting (COVID-era) or a precinct-to-block allocation that misplaced votes — so the figures are allocated from the constituent county totals in proportion to the place and scaled to certified totals.
Year
Won
Democratic
Republican
Other
Margin
Swing
vs U.S.
Total
R
35.3%Harris20,181
62.4%Trump35,701
2.4%
R+27.1
R+0.8
R+25.6
57,235
R
35.7%Biden20,659
62.0%Trump35,916
2.3%
R+26.3
D+2.8
R+30.8
57,902
R
31.4%Clinton16,533
60.6%Trump31,887
8.0%
R+29.2
R+2.2
R+31.3
52,606
R
35.4%Obama17,689
62.4%Romney31,157
2.2%
R+27.0
R+13.9
R+30.8
49,958
R
42.3%Obama22,012
55.3%McCain28,809
2.4%
R+13.1
D+11.8
R+20.3
52,070
R
37.3%Kerry19,100
62.2%Bush31,840
0.5%
R+24.9
—
R+22.4
51,199
current representation
Current officeholders
RDennis TipswordState House · 105
State legislative officeholder from OpenStates nightly current-legislator data.
District 105 spans rural central Illinois and delivered a 46-point Republican presidential margin in 2024, making it among the most reliably conservative state house seats in a state whose statewide offices lean Democratic.
Across the recorded series it reached a Republican high of 29.2 points in 2016. Between 2020 and 2024 the district moved 0.8 points toward the Republican candidate; the 2024 margin was 27.1 points.
A population of 108,658, a 89% non-Hispanic-white share, and a median household income of $85,019 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 169 and State House District 92.
Akashic
Political twins — state-house districts
The state-house 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 →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Illinois 105th State House District. Akashic. https://akashic.app/sld-lower/17105/. Accessed May 20, 2026. License: CC BY 4.0.
How did Illinois 105th State House District vote in 2024?
In 2024, Illinois 105th State House District voted Republican by 27.1 points (R+27.1), carried by the Republican candidate. Out of 57,235 votes cast, 20,181 went Democratic and 35,701 went Republican.
How many people live in Illinois 105th State House District?
Illinois 105th State House District has a population of 108,658 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Illinois 105th State House District?
Median household income in Illinois 105th State House District is $85,019 — above the national median of $80,734. The Illinois state median is $83,390.
What is the political history of Illinois 105th State House District?
Akashic tracks 6 presidential elections in Illinois 105th State House District from 2004 to 2024. Of those, 0 went Democratic and 6 went Republican.
