California 4th State Senate District, California: Tossup district. In 2024, voted R+13%. Democratic peak: D+50 in 1912.
Key facts
- 2024 presidential margin
- R+13MIT Election Lab
- Political archetype
- TossupAkashic typology
- Population
- 1,302,7262024 5-year
- Median household income
- $89,4382024 5-year
- White (non-Hispanic)
- 56.1%2024 5-year
- Black
- 2.1%2024 5-year
- Hispanic / Latino
- 36.0%2024 5-year
- Peak Democratic margin
- D+50 in 1912MIT Election Lab
- Peak Republican margin
- R+36 in 1924MIT Election Lab
Constituent county margins for State Senate District 4, CAOne cell per constituent county, colored by 2024 presidential margin from deep red (Republican) through neutral to deep blue (Democratic), ordered bluest first.
R+60D+60
One cell per constituent county. Ordered by 2024 D-vs-R margin (bluest first). Hover for county-level numbers.
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| R | 244,269 | 317,597 | 578,640 | ||
| R | 276,930 | 312,570 | 605,060 | ||
| R | 204,311 | 244,703 | 491,733 | ||
| R | 197,653 | 241,334 | 453,080 | ||
| R | 216,175 | 245,380 | 473,369 | ||
| R | 166,436 | 261,172 | 433,129 | ||
| R | 145,334 | 206,477 | 368,898 | ||
| R | 134,315 | 160,425 | 330,170 | ||
| R | 127,681 | 132,800 | 346,107 | ||
| R | 115,902 | 152,048 | 271,855 | ||
| R | 93,094 | 154,137 | 250,464 | ||
| R | 77,852 | 118,375 | 219,961 | ||
| D | 89,721 | 82,928 | 178,069 | ||
| R | 72,937 | 91,303 | 170,435 | ||
| R | 64,076 | 65,648 | 141,566 | ||
| D | 87,835 | 48,856 | 136,857 | ||
| D | 64,629 | 61,973 | 127,343 | ||
| R | 55,154 | 56,011 | 111,540 | ||
| R | 45,299 | 59,339 | 105,698 | ||
| D | 41,301 | 38,308 | 82,963 | ||
| D | 36,255 | 29,206 | 66,119 | ||
| D | 43,862 | 29,869 | 74,657 | ||
| D | 40,603 | 17,364 | 58,753 | ||
| D | 32,066 | 15,342 | 49,526 | ||
| R | 15,451 | 22,408 | 38,343 | ||
| R | 3,762 | 15,616 | 33,269 | ||
| R | 8,639 | 18,037 | 29,526 | ||
| D | 17,595 | 12,726 | 33,830 | ||
| D | 13,533 | 0 | 26,829 | ||
| R | 7,600 | 8,779 | 18,407 | ||
| R | 6,685 | 9,872 | 18,239 | ||
| D | 9,764 | 9,577 | 19,754 | ||
| D | 10,686 | 8,241 | 19,267 | ||
| D | 8,030 | 7,576 | 17,009 | ||
| D | 8,839 | 8,362 | 17,643 | ||
| D | 8,558 | 8,440 | 17,409 | ||
| D | 8,870 | 8,314 | 17,311 | ||
| D | 7,670 | 6,953 | 14,622 |
Demographics
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
10.7%
English
9.8%
Irish
8.9%
Italian
4.6%
American
2.4%
Scottish
1.9%
French
1.8%
Source · American Community Survey 5-year estimates, 2024 release. Hispanic/Latino is an ethnicity that overlaps the race categories, so these shares can total more than 100%. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.
Age distribution by sex
Median age: 39.7 in this county, 39.1 nationally
Male
Age
Female
85+
75–84
65–74
55–64
45–54
35–44
25–34
18–24
5–17
<5
Source · American Community Survey 5-year estimates, 2024 release.
Median household income
2024 inflation-adjusted dollars
$89,438
State Senate District 4 ranks near the middle of US counties.
State Senate District 4$89,438
California$99,122
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
12.0%
Child poverty is below the national average.
Children under 1814.5%
Working age (18–64)11.0%
Seniors (65+)12.6%
Source · American Community Survey 5-year estimates, 2024 release.
Language at home
Population aged 5 and older
69.8%
speak English only
Spanish23.0%
Other Indo-European3.7%
Asian & Pacific Islander2.5%
Other languages1.0%
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Religious adherence data not available for this county.
With a 2024 presidential margin of D+30, this district's voter preferences have been consistent enough that competitive general elections are rare, shifting political energy toward primary contests instead.
The district's recent history is a story of close margins. The Democratic margin reached fifty points in 1912; the Republican margin reached thirty-six points in 1924. Most other elections have been decided by single-digit points.
Its demographics — a population of 1,302,726, a 56% non-Hispanic-white share, a median household income of $89,438 — situate the district close to national averages on several dimensions.
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
State Senate District 4, California. Akashic. https://akashic.app/sld-upper/06004/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Frequently asked questions
How did State Senate District 4, California vote in 2024?
In 2024, State Senate District 4, California voted Republican by 12.7 points (R+13), carried by the Republican candidate. Out of 578,640 votes cast, 244,269 went Democratic and 317,597 went Republican.
What is State Senate District 4, California's political archetype?
Akashic classifies State Senate District 4, California as a "Tossup" district based on its long-arc presidential voting pattern. Across 38 elections in the dataset, the district has voted Democratic 17 times, Republican 21 times, and other 0 times.
When did State Senate District 4, California last vote Democratic?
The most recent presidential election in which State Senate District 4, California voted Democratic was 1976.
How many people live in State Senate District 4, California?
State Senate District 4, California has a population of 1,302,726 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in State Senate District 4, California?
Median household income in State Senate District 4, California is $89,438 — above the national median of $80,734. The California state median is $99,122.
What is the political history of State Senate District 4, California?
Akashic tracks 38 presidential elections in State Senate District 4, California from 1876 to 2024. Of those, 17 went Democratic and 21 went Republican. The district's archetype — "Tossup" — captures the overall trajectory of that voting record.