- Lead
- 6,514
- Total
- 162,543
- vs nation
- D+5.5
California 58th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 35,070
- Total
- 183,733
- vs nation
- D+14.6
- Lead
- 28,078
- Total
- 137,729
- vs nation
- D+18.3
- Lead
- 21,102
- Total
- 120,417
- vs nation
- D+13.7
- Lead
- 21,320
- Total
- 117,920
- vs nation
- D+10.8
- Lead
- 572
- Total
- 98,291
- vs nation
- D+1.9
- Lead
- 7,249
- Total
- 81,799
- vs nation
- D+8.3
- Lead
- 8,416
- Total
- 72,571
- vs nation
- D+3.1
Key facts
- 2024 presidential margin
- D+4.0MIT Election Lab
- Population
- 494,2292024 5-year
- Population density
- 3,753 / sq mi2024 5-year · TIGER/Line
- Land area
- 132 sq miTIGER/Line
- Median household income
- $91,6512024 5-year
- White (non-Hispanic)
- 22.0%2024 5-year
- Black
- 5.1%2024 5-year
- Hispanic / Latino
- 61.9%2024 5-year
- Peak Democratic margin
- D+28.5 in 1964MIT Election Lab
- Peak Republican margin
- R+44.0 in 1884MIT Election Lab
- Most similar
- Assembly District 50, CA · twin score 98.4
presidential history
Party record book
California 58th State House 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
64.2%
17,184 votes · D+28.5 · modeled estimate
Runner-up · Joe Biden, 2020 · 58.4%
Republican
James G. Blaine1884
72.0%
18 votes · R+44.0 · modeled estimate
Runner-up · Herbert Hoover, 1928 · 70.3%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
107,286votes
58.4% of the vote · D+19.1 · modeled estimate
Runner-up · Kamala Harris, 2024 · 81,909 votes
Republican
Donald Trump2024
75,395votes
46.4% of the vote · D+4.0 · modeled estimate
Runner-up · Donald Trump, 2020 · 72,216 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
George McGovern1972
+18.9pts D vs U.S.
Place R+4.3 · U.S. R+23.2 · modeled estimate
Runner-up · Hillary Clinton, 2016 · +18.3 pts
Republican
Benjamin Harrison1892
+33.2pts R vs U.S.
Place R+31.5 · U.S. D+1.7 · modeled estimate
Runner-up · Herbert Hoover, 1928 · +25.4 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's 58th Assembly District has shifted markedly toward competitiveness over the past decade, with the 2024 presidential result landing at D+4 — a margin that reflects broader demographic change in the Inland Empire region it covers.
Across the recorded series it reached a Democratic high of 28.5 points in 1964 and a Republican high of 44.0 points in 1884. Between 2020 and 2024 the district moved 15.1 points toward the Republican candidate; the 2024 margin was 4.0 points.
A population of 494,229, a 22% non-Hispanic-white share, and a median household income of $91,651 describe the district. The district's voting pattern over the last decade is most similar to that of Assembly District 50 and Assembly District 60.
The state-house 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 58th State House District. Akashic. https://akashic.app/sld-lower/06058/. Accessed May 20, 2026. License: CC BY 4.0.