- Lead
- 56,092
- Total
- 77,936
- vs nation
- D+73.4
Illinois 13th State Senate District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 70,631
- Total
- 90,054
- vs nation
- D+74.0
- Lead
- 72,503
- Total
- 89,768
- vs nation
- D+78.7
- Lead
- 65,892
- Total
- 81,512
- vs nation
- D+77.0
- Lead
- 73,046
- Total
- 88,166
- vs nation
- D+75.6
- Lead
- 62,042
- Total
- 80,030
- vs nation
- D+80.0
- Lead
- 55,093
- Total
- 72,228
- vs nation
- D+75.8
- Lead
- 49,855
- Total
- 67,155
- vs nation
- D+65.7
Key facts
- 2024 presidential margin
- D+72.0MIT Election Lab
- Population
- 217,2282024 5-year
- Population density
- 13,246 / sq mi2024 5-year · TIGER/Line
- Land area
- 16.4 sq miTIGER/Line
- Median household income
- $67,2662024 5-year
- White (non-Hispanic)
- 23.5%2024 5-year
- Black
- 51.8%2024 5-year
- Hispanic / Latino
- 12.8%2024 5-year
- Peak Democratic margin
- D+82.9 in 2008MIT Election Lab
- Most similar
- State Senate District 3, IL · twin score 99.2
presidential history
Party record book
Illinois 13th 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
Barack Obama2008
91.0%
80,262 votes · D+82.9 · modeled estimate
Runner-up · Barack Obama, 2012 · 89.8%
Republican
Warren G. Harding1920
43.9%
9,324 votes · D+1.9 · modeled estimate
Runner-up · Calvin Coolidge, 1924 · 36.7%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Barack Obama2008
80,262votes
91.0% of the vote · D+82.9 · modeled estimate
Runner-up · Joe Biden, 2020 · 79,645 votes
Republican
Dwight D. Eisenhower1956
19,545votes
28.9% of the vote · D+42.2 · modeled estimate
Runner-up · Richard Nixon, 1972 · 18,580 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
John Kerry2004
+80.0pts D vs U.S.
Place D+77.5 · U.S. R+2.5 · modeled estimate
Runner-up · Hillary Clinton, 2016 · +78.7 pts
Republican
William H. Taft1912
−17.5pts R vs U.S.
Place D+37.0 · U.S. D+19.5 · a third-party candidate carried the Place · modeled estimate
Runner-up · Warren G. Harding, 1920 · −28.1 pts
Current officeholders
State legislative officeholder from OpenStates nightly current-legislator data.
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.
| Year | Vote lead | Democratic | Republican | Total |
|---|---|---|---|---|
| 2024 | D | 73.1%60,929 | 26.9%22,384 | 83,313 |
Illinois 13th State Senate District sits in the Upper Midwest. In 2024 it voted Democratic.
Across the recorded series it reached a Democratic high of 82.9 points in 2008. Between 2020 and 2024 the district moved 6.5 points toward the Republican candidate; the 2024 margin was 72.0 points.
A population of 217,228, a 24% non-Hispanic-white share, and a median household income of $67,266 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 3 and State Senate District 5.
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.
District research tools
Open the source-auditable district brief for electoral baseline, electorate, current-cycle coverage, geography, official dates, and methodology. Open campaign intelligence report → · Browse all comparisons →
Illinois 13th State Senate District. Akashic. https://akashic.app/sld-upper/17013/. Accessed May 20, 2026. License: CC BY 4.0.