- Lead
- 35,110
- Total
- 473,629
- vs nation
- D+8.9
California 37th State Senate District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 66,199
- Total
- 508,353
- vs nation
- D+8.6
- Lead
- 31,115
- Total
- 399,996
- vs nation
- D+5.7
- Lead
- 26,445
- Total
- 374,811
- vs nation
- R+10.9
- Lead
- 13,029
- Total
- 384,996
- vs nation
- R+10.7
- Lead
- 77,211
- Total
- 359,423
- vs nation
- R+19.0
- Lead
- 52,535
- Total
- 324,876
- vs nation
- R+16.7
- Lead
- 41,913
- Total
- 289,691
- vs nation
- R+23.0
Key facts
- 2024 presidential margin
- D+7.4MIT Election Lab
- Population
- 1,018,5652024 5-year
- Population density
- 2,712 / sq mi2024 5-year · TIGER/Line
- Land area
- 376 sq miTIGER/Line
- Median household income
- $128,8882024 5-year
- White (non-Hispanic)
- 44.1%2024 5-year
- Black
- 1.7%2024 5-year
- Hispanic / Latino
- 23.3%2024 5-year
- Peak Democratic margin
- D+36.6 in 1912MIT Election Lab
- Peak Republican margin
- R+58.3 in 1928MIT Election Lab
- Most similar
- State Senate District 40, CA · twin score 93.0
presidential history
Party record book
California 37th State Senate District · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1892–2024 · 34 presidential cycles
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
Joe Biden2020
55.4%
281,822 votes · D+13.0 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1936 · 54.1%
Republican
Herbert Hoover1928
78.0%
10,271 votes · R+58.3 · modeled estimate
Runner-up · Ronald Reagan, 1984 · 74.9%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
281,822votes
55.4% of the vote · D+13.0 · modeled estimate
Runner-up · Kamala Harris, 2024 · 245,686 votes
Republican
George W. Bush2004
215,730votes
60.0% of the vote · R+21.5 · modeled estimate
Runner-up · Donald Trump, 2020 · 215,623 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
Woodrow Wilson1912
+17.0pts D vs U.S.
Place D+36.6 · U.S. D+19.5 · a third-party candidate carried the Place · modeled estimate
Runner-up · Kamala Harris, 2024 · +8.9 pts
Republican
Herbert Hoover1928
+40.8pts R vs U.S.
Place R+58.3 · U.S. R+17.5 · modeled estimate
Runner-up · Ronald Reagan, 1980 · +36.0 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.
California 37th State Senate District sits in the Pacific Coast. In 2024 it voted Democratic.
Across the recorded series it reached a Democratic high of 36.6 points in 1912 and a Republican high of 58.3 points in 1928. Between 2020 and 2024 the district moved 5.6 points toward the Republican candidate; the 2024 margin was 7.4 points.
A population of 1,018,565, a 44% non-Hispanic-white share, and a median household income of $128,888 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 40 and State Senate District 36.
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 State Senate District 37 with…
- Cook County, ILThe two largest Democratic-anchor counties in America.
- Harris County, TXLA vs Harris — Sun Belt blue vs Sun Belt swing.
- New York County, NYLA vs Manhattan — coast to coast.
Open campaign intelligence report → · All twelve comparisons →
California 37th State Senate District. Akashic. https://akashic.app/sld-upper/06037/. Accessed May 20, 2026. License: CC BY 4.0.