- Lead
- 17,135
- Total
- 169,927
- vs nation
- D+11.6
Michigan 13th State Senate District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 24,556
- Total
- 170,441
- vs nation
- D+10.0
- Lead
- 11,645
- Total
- 147,580
- vs nation
- D+5.8
- Lead
- 15,779
- Total
- 145,435
- vs nation
- D+7.0
- Lead
- 24,484
- Total
- 149,661
- vs nation
- D+9.1
- Lead
- 3,978
- Total
- 147,540
- vs nation
- D+5.2
- Lead
- 4,662
- Total
- 130,868
- vs nation
- D+3.0
- Lead
- 9,709
- Total
- 117,037
- vs nation
- R+0.2
Key facts
- 2024 presidential margin
- D+10.1MIT Election Lab
- Population
- 267,8812024 5-year
- Population density
- 2,187 / sq mi2024 5-year · TIGER/Line
- Land area
- 123 sq miTIGER/Line
- Median household income
- $120,4632024 5-year
- White (non-Hispanic)
- 71.1%2024 5-year
- Black
- 8.3%2024 5-year
- Hispanic / Latino
- 3.2%2024 5-year
- Peak Democratic margin
- D+20.1 in 1964MIT Election Lab
- Peak Republican margin
- R+80.1 in 1924MIT Election Lab
- Most similar
- State Senate District 26, IL · twin score 86.5
presidential history
Party record book
Michigan 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
Lyndon B. Johnson1964
59.9%
61,216 votes · D+20.1 · modeled estimate
Runner-up · Barack Obama, 2008 · 57.5%
Republican
Calvin Coolidge1924
84.9%
28,463 votes · R+80.1 · modeled estimate
Runner-up · Warren G. Harding, 1920 · 82.8%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
96,545votes
56.6% of the vote · D+14.4 · modeled estimate
Runner-up · Kamala Harris, 2024 · 91,583 votes
Republican
Ronald Reagan1984
79,132votes
64.2% of the vote · R+29.1 · modeled estimate
Runner-up · Richard Nixon, 1972 · 75,554 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
+11.6pts D vs U.S.
Place D+10.1 · U.S. R+1.5 · modeled estimate
Runner-up · Joe Biden, 2020 · +10.0 pts
Republican
Calvin Coolidge1924
+54.9pts R vs U.S.
Place R+80.1 · U.S. R+25.2 · modeled estimate
Runner-up · William McKinley, 1896 · +50.9 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 | 58.2%83,728 | 41.8%60,059 | 143,787 |
| 2020 | D | 59.8%77,307 | 40.2%51,965 | 129,272 |
Michigan 13th State Senate District sits in the Great Lakes. In 2024 it voted Democratic.
Across the recorded series it reached a Democratic high of 20.1 points in 1964 and a Republican high of 80.1 points in 1924. Between 2020 and 2024 the district moved 4.3 points toward the Republican candidate; the 2024 margin was 10.1 points.
A population of 267,881, a 71% non-Hispanic-white share, and a median household income of $120,463 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 26 and State Senate District 9.
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 →
Michigan 13th State Senate District. Akashic. https://akashic.app/sld-upper/26013/. Accessed May 20, 2026. License: CC BY 4.0.