- Lead
- 31,285
- Total
- 68,862
- vs nation
- D+46.9
Illinois 16th State Senate District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 52,296
- Total
- 84,320
- vs nation
- D+57.6
- Lead
- 59,811
- Total
- 87,214
- vs nation
- D+66.5
- Lead
- 53,133
- Total
- 80,571
- vs nation
- D+62.1
- Lead
- 59,728
- Total
- 86,481
- vs nation
- D+61.8
- Lead
- 48,434
- Total
- 80,701
- vs nation
- D+62.5
- Lead
- 42,873
- Total
- 72,172
- vs nation
- D+58.9
- Lead
- 39,032
- Total
- 66,868
- vs nation
- D+49.9
Key facts
- 2024 presidential margin
- D+45.4MIT Election Lab
- Population
- 217,1742024 5-year
- Population density
- 7,984 / sq mi2024 5-year · TIGER/Line
- Land area
- 27.2 sq miTIGER/Line
- Median household income
- $59,1542024 5-year
- White (non-Hispanic)
- 23.1%2024 5-year
- Black
- 49.7%2024 5-year
- Hispanic / Latino
- 23.6%2024 5-year
- Peak Democratic margin
- D+69.1 in 2008MIT Election Lab
- Peak Republican margin
- R+29.6 in 1920MIT Election Lab
- Most similar
- State Senate District 14, IL · twin score 97.5
presidential history
Party record book
Illinois 16th 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
84.4%
72,986 votes · D+69.1 · modeled estimate
Runner-up · Hillary Clinton, 2016 · 82.8%
Republican
Warren G. Harding1920
61.7%
17,034 votes · R+29.6 · modeled estimate
Runner-up · Calvin Coolidge, 1924 · 55.1%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Barack Obama2008
72,986votes
84.4% of the vote · D+69.1 · modeled estimate
Runner-up · Hillary Clinton, 2016 · 72,184 votes
Republican
Dwight D. Eisenhower1956
35,531votes
44.8% of the vote · D+10.4 · modeled estimate
Runner-up · Richard Nixon, 1972 · 33,892 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
Hillary Clinton2016
+66.5pts D vs U.S.
Place D+68.6 · U.S. D+2.1 · modeled estimate
Runner-up · John Kerry, 2004 · +62.5 pts
Republican
Warren G. Harding1920
+3.4pts R vs U.S.
Place R+29.6 · U.S. R+26.2 · modeled estimate
Runner-up · Calvin Coolidge, 1924 · −0.5 pts
Current officeholders
State legislative officeholder from OpenStates nightly current-legislator data.
Anchored in the Chicago metropolitan corridor, this 217,000-resident district has delivered consistent double-digit Democratic presidential margins, reflecting the dense, urban-leaning electorate that defines much of northeastern Illinois.
Across the recorded series it reached a Democratic high of 69.1 points in 2008 and a Republican high of 29.6 points in 1920. Between 2020 and 2024 the district moved 16.6 points toward the Republican candidate; the 2024 margin was 45.4 points.
A population of 217,174, a 23% non-Hispanic-white share, and a median household income of $59,154 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 14 and State Senate District 3.
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 16th State Senate District. Akashic. https://akashic.app/sld-upper/17016/. Accessed May 20, 2026. License: CC BY 4.0.