state senate districtIllinois 39th State Senate District
presidential margin
2004–2024 · Democratic minus Republican
2004D+41.8
2008D+53.8
2012D+52.3
2016D+54.9
2020D+52.8
2024D+44.6
net swing · 2004→2024D+2.7D+41.8 → D+44.6
vs. U.S. · 2024D+46.0D+44.6 vs R+1.5
presidential returns
2024 turnout 60.4% of 140,370 citizens 18+
Year
Democrat
Republican
Others
Total
CVAP
Turnout
2024
60,726
22,967
1,024
84,717
140,370
60.4%
2020
71,085
21,472
1,494
94,051
138,965†
67.7%
2016
66,231
17,668
4,582
88,481
137,395†
64.4%
2012
62,030
19,006
1,265
82,301
133,580†
61.6%
2008
66,115
19,473
1,085
86,673
133,575†
64.9%
2004
57,908
23,659
275
81,842
133,570†
61.3%
† 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 SD 39IllinoisUnited States
German10.5%16.1%12.5%
Irish9.5%10.6%9.4%
Polish7.8%6.0%2.2%
Italian5.8%5.4%4.8%
English4.2%6.9%9.5%
American2.4%3.3%5.3%
Swedish1.4%1.5%—
Russian0.9%——
Mexican27.9%14.4%11.3%
Puerto Rican3.7%1.7%1.8%
Guatemalan0.7%0.3%0.5%
Ecuadorian0.7%0.3%—
Colombian0.6%0.3%0.4%
Cuban0.4%0.2%0.7%
Venezuelan0.4%——
Honduran0.3%0.2%0.3%
African American†15.4%12.1%9.9%
African0.4%0.5%0.5%
Nigerian0.3%0.3%0.2%
Jamaican0.2%—0.4%
Asian Indian1.3%2.1%1.4%
Chinese0.7%1.0%1.3%
Filipino0.6%1.0%0.9%
Korean0.3%0.4%0.4%
Pakistani0.2%0.3%—
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 SD 39
Illinois
United States
Median age
39.6
39.1
39.1
Age 18–24
8.7%
9.1%
9.2%
Age 65 and older
16.1%
16.9%
17.2%
Household economy
Measure
IL SD 39
Illinois
United States
Median household income
$81,852
$83,390
$84,427
Poverty rate
9.8%
11.8%
12.5%
Bachelor's degree or higher (25+)
44.0%
37.9%
35.6%
Languages at home
Measure
IL SD 39
Illinois
United States
Speaks a non-English language at home
34.9%
24.1%
22.3%
Spanish
19.7%
14.0%
13.6%
Russian, Polish, or other Slavic
4.2%
2.5%
0.7%
Other Indo-European
3.9%
2.6%
2.0%
Chinese (incl. Mandarin & Cantonese)
1.4%
0.9%
1.1%
Religious landscape
Measure
IL SD 39
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 39th State Senate District
presidential history
Presidential margin, 2004–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2004
+41.8%
2008
+53.8%
2012
+52.3%
2016
+54.9%
2020
+52.8%
2024
+44.6%
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
D
71.7%Harris60,726
27.1%Trump22,967
1.2%
D+44.6
R+8.2
D+46.0
84,717
D
75.6%Biden71,085
22.8%Trump21,472
1.6%
D+52.8
R+2.1
D+48.3
94,051
D
74.9%Clinton66,231
20.0%Trump17,668
5.2%
D+54.9
D+2.6
D+52.8
88,481
D
75.4%Obama62,030
23.1%Romney19,006
1.5%
D+52.3
R+1.5
D+48.4
82,301
D
76.3%Obama66,115
22.5%McCain19,473
1.3%
D+53.8
D+12.0
D+46.5
86,673
D
70.8%Kerry57,908
28.9%Bush23,659
0.3%
D+41.8
—
D+44.3
81,842
current representation
Current officeholders
DDon HarmonState Senate · 39
State legislative officeholder from OpenStates nightly current-legislator data.
Anchored in heavily Republican downstate territory, Illinois Senate District 39 delivered a 44.7-point Republican presidential margin in 2024, making it among the most lopsided state senate districts in a state more often defined by its Democratic supermajority.
Across the recorded series it reached a Democratic high of 54.9 points in 2016. Between 2020 and 2024 the district moved 8.2 points toward the Republican candidate; the 2024 margin was 44.6 points.
A population of 217,119, a 40% non-Hispanic-white share, and a median household income of $81,852 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 2 and State Senate District 20.
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 →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Illinois 39th State Senate District. Akashic. https://akashic.app/sld-upper/17039/. Accessed May 20, 2026. License: CC BY 4.0.
How did Illinois 39th State Senate District vote in 2024?
In 2024, Illinois 39th State Senate District voted Democratic by 44.6 points (D+44.6), carried by the Democratic candidate. Out of 84,717 votes cast, 60,726 went Democratic and 22,967 went Republican.
How many people live in Illinois 39th State Senate District?
Illinois 39th State Senate District has a population of 217,119 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Illinois 39th State Senate District?
Median household income in Illinois 39th State Senate District is $81,852 — above the national median of $80,734. The Illinois state median is $83,390.
What is the political history of Illinois 39th State Senate District?
Akashic tracks 6 presidential elections in Illinois 39th State Senate District from 2004 to 2024. Of those, 6 went Democratic and 0 went Republican.
