- Lead
- 136,934
- Total
- 429,523
- vs nation
- D+33.4
California 17th State Senate District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 182,480
- Total
- 466,013
- vs nation
- D+34.7
- Lead
- 143,435
- Total
- 396,352
- vs nation
- D+34.1
- Lead
- 120,145
- Total
- 364,130
- vs nation
- D+29.1
- Lead
- 136,456
- Total
- 384,283
- vs nation
- D+28.2
- Lead
- 82,954
- Total
- 368,932
- vs nation
- D+24.9
- Lead
- 55,507
- Total
- 329,917
- vs nation
- D+16.3
- Lead
- 47,069
- Total
- 306,399
- vs nation
- D+6.8
Key facts
- 2024 presidential margin
- D+31.9MIT Election Lab
- Population
- 1,000,6302024 5-year
- Population density
- 142 / sq mi2024 5-year · TIGER/Line
- Land area
- 7,053 sq miTIGER/Line
- Median household income
- $101,6632024 5-year
- White (non-Hispanic)
- 43.6%2024 5-year
- Black
- 1.6%2024 5-year
- Hispanic / Latino
- 44.8%2024 5-year
- Peak Democratic margin
- D+43.3 in 1912MIT Election Lab
- Peak Republican margin
- R+46.4 in 1924MIT Election Lab
- Most similar
- State Senate District 33, CA · twin score 92.0
presidential history
Party record book
California 17th 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
Joe Biden2020
68.4%
318,696 votes · D+39.2 · modeled estimate
Runner-up · Barack Obama, 2008 · 66.5%
Republican
Warren G. Harding1920
64.8%
15,256 votes · R+39.4 · modeled estimate
Runner-up · Dwight D. Eisenhower, 1952 · 63.9%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
318,696votes
68.4% of the vote · D+39.2 · modeled estimate
Runner-up · Kamala Harris, 2024 · 276,188 votes
Republican
Ronald Reagan1984
141,164votes
54.2% of the vote · R+9.8 · modeled estimate
Runner-up · George W. Bush, 2004 · 139,713 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
Joe Biden2020
+34.7pts D vs U.S.
Place D+39.2 · U.S. D+4.5 · modeled estimate
Runner-up · Hillary Clinton, 2016 · +34.1 pts
Republican
Calvin Coolidge1924
+21.2pts R vs U.S.
Place R+46.4 · U.S. R+25.2 · modeled estimate
Runner-up · Dwight D. Eisenhower, 1952 · +17.9 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.
Covering inland terrain where agriculture and working-class suburbs dominate, this district backed the 2024 Republican presidential nominee by 12 points — an outlier in a state that went Democratic by double digits statewide.
Across the recorded series it reached a Democratic high of 43.3 points in 1912 and a Republican high of 46.4 points in 1924. Between 2020 and 2024 the district moved 7.3 points toward the Republican candidate; the 2024 margin was 31.9 points.
A population of 1,000,630, a 44% non-Hispanic-white share, and a median household income of $101,663 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 33 and State Senate District 21.
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 →
California 17th State Senate District. Akashic. https://akashic.app/sld-upper/06017/. Accessed May 20, 2026. License: CC BY 4.0.