California 1st State Senate District, California: Republican loyalist district. In 2024, voted R+19%. Republican peak: R+19 in 2024.
Key facts
- 2024 presidential margin
- R+19MIT Election Lab
- Political archetype
- Republican loyalistAkashic typology
- Population
- 932,8412024 5-year
- Median household income
- $75,1292024 5-year
- White (non-Hispanic)
- 67.9%2024 5-year
- Black
- 1.7%2024 5-year
- Hispanic / Latino
- 21.5%2024 5-year
- Peak Republican margin
- R+19 in 2024MIT Election Lab
Constituent county margins for State Senate District 1, 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.
5 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| R | 166,675 | 249,341 | 427,787 | ||
| R | 188,502 | 253,792 | 453,384 | ||
| R | 143,252 | 213,233 | 392,094 | ||
| R | 148,228 | 207,461 | 369,104 | ||
| R | 168,835 | 214,801 | 394,223 |
Demographics
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
12.4%
English
12.1%
Irish
10.2%
Italian
4.7%
American
4.7%
Scottish
2.3%
French
2.1%
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: 40.1 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
$75,129
State Senate District 1 ranks near the middle of US counties.
State Senate District 1$75,129
California$99,122
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
14.5%
Children face moderate poverty.
Children under 1817.1%
Working age (18–64)13.9%
Seniors (65+)11.6%
Source · American Community Survey 5-year estimates, 2024 release.
Language at home
Population aged 5 and older
81.5%
speak English only
Spanish12.5%
Other Indo-European3.1%
Asian & Pacific Islander2.5%
Other languages0.4%
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 65.3% of residents not counted as adherents by any reporting body.
Anchored in the North Bay and coastal Northern California, this district recorded a 53.5-point Democratic presidential margin in 2024, placing it among the state's most reliably one-sided legislative constituencies.
The Republican margin in California 1st State Senate District reached its widest at nineteen points in 2024. The margin in 2024 was nineteen points, in line with the district's deep historical pattern.
Its loyalty is rooted in its place. Median household income of $75,129, a 68% non-Hispanic-white share, and a population of 932,841 together describe a district whose political habits are deeply settled.
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
State Senate District 1, California — The Long Memory. Akashic Intelligence — The Long Memory. https://tiers.akashic.app/sld-upper/06001/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Frequently asked questions
How did State Senate District 1, California vote in 2024?
In 2024, State Senate District 1, California voted Republican by 19.3 points (R+19), carried by the Republican candidate. Out of 427,787 votes cast, 166,675 went Democratic and 249,341 went Republican.
What is State Senate District 1, California's political archetype?
Akashic classifies State Senate District 1, California as a "Republican loyalist" district based on its long-arc presidential voting pattern. Across 5 elections in the dataset, the district has voted Democratic 0 times, Republican 5 times, and other 0 times.
How many people live in State Senate District 1, California?
State Senate District 1, California has a population of 932,841 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 1, California?
Median household income in State Senate District 1, California is $75,129 — below the national median of $80,734. The California state median is $99,122.
What is the political history of State Senate District 1, California?
Akashic tracks 5 presidential elections in State Senate District 1, California from 2008 to 2024. Of those, 0 went Democratic and 5 went Republican. The district's archetype — "Republican loyalist" — captures the overall trajectory of that voting record.