California 12th State Senate District, California: Tossup district. In 2024, voted R+16%. Democratic peak: D+49 in 1936.
Key facts
- 2024 presidential margin
- R+16MIT Election Lab
- Political archetype
- TossupAkashic typology
- Population
- 1,580,9552024 5-year
- Median household income
- $71,6972024 5-year
- White (non-Hispanic)
- 39.7%2024 5-year
- Black
- 4.1%2024 5-year
- Hispanic / Latino
- 58.2%2024 5-year
- Peak Democratic margin
- D+49 in 1936MIT Election Lab
- Peak Republican margin
- R+31 in 1924MIT Election Lab
Constituent county margins for State Senate District 12, 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 | 199,623 | 275,622 | 487,441 | ||
| R | 249,354 | 269,007 | 530,294 | ||
| R | 182,801 | 207,154 | 419,279 | ||
| R | 165,186 | 203,992 | 378,896 | ||
| R | 173,423 | 215,782 | 398,009 | ||
| R | 129,005 | 229,794 | 362,367 | ||
| R | 123,396 | 185,622 | 319,655 | ||
| R | 120,174 | 156,034 | 301,943 | ||
| R | 116,368 | 137,923 | 315,466 | ||
| R | 111,777 | 153,294 | 268,356 | ||
| R | 102,334 | 164,589 | 269,551 | ||
| R | 83,205 | 129,013 | 228,612 | ||
| R | 95,765 | 105,273 | 205,303 | ||
| R | 84,941 | 122,476 | 216,021 | ||
| R | 87,480 | 94,036 | 201,032 | ||
| D | 119,909 | 75,449 | 195,561 | ||
| D | 94,616 | 92,238 | 187,698 | ||
| D | 84,804 | 81,377 | 166,688 | ||
| R | 71,417 | 82,338 | 154,926 | ||
| D | 64,208 | 48,009 | 115,794 | ||
| D | 52,785 | 39,496 | 92,844 | ||
| D | 64,415 | 37,258 | 102,765 | ||
| D | 55,456 | 18,699 | 75,155 | ||
| D | 43,106 | 17,500 | 63,505 | ||
| R | 19,950 | 30,759 | 51,296 | ||
| R | 7,314 | 21,559 | 46,133 | ||
| R | 13,136 | 19,556 | 35,464 | ||
| D | 19,988 | 15,262 | 38,197 | ||
| O | 11,959 | 0 | 26,196 | ||
| R | 5,805 | 6,950 | 14,318 | ||
| R | 3,967 | 5,929 | 11,341 | ||
| D | 4,981 | 4,398 | 9,823 | ||
| D | 5,240 | 3,496 | 8,957 | ||
| D | 4,634 | 2,278 | 10,590 | ||
| D | 4,318 | 3,618 | 8,290 | ||
| D | 2,726 | 2,061 | 5,014 | ||
| D | 2,052 | 1,352 | 3,523 | ||
| D | 2,167 | 1,345 | 3,512 |
Demographics
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
5.7%
English
5.1%
Irish
4.6%
American
2.5%
Italian
1.9%
Scottish
0.9%
French
0.8%
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: 32.8 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
$71,697
State Senate District 12 ranks near the middle of US counties.
State Senate District 12$71,697
California$99,122
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
18.6%
Children face higher poverty than working-age adults.
Children under 1825.1%
Working age (18–64)16.0%
Seniors (65+)15.6%
Source · American Community Survey 5-year estimates, 2024 release.
Language at home
Population aged 5 and older
53.9%
speak English only
Spanish39.3%
Asian & Pacific Islander3.6%
Other Indo-European2.4%
Other languages0.8%
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 53.5% of residents not counted as adherents by any reporting body.
California 12th State Senate District in the Pacific Coast delivered a near-tie in 2024, with the Republican candidate carrying the district by sixteen points — well within the historical noise of how the district votes.
The district's recent history is a story of close margins. The Democratic margin reached forty-nine points in 1936; the Republican margin reached thirty-one points in 1924. Most other elections have been decided by single-digit points.
Its demographics — a population of 1,580,955, a 40% non-Hispanic-white share, a median household income of $71,697 — 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 12, California. Akashic. https://akashic.app/sld-upper/06012/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Frequently asked questions
How did State Senate District 12, California vote in 2024?
In 2024, State Senate District 12, California voted Republican by 15.6 points (R+16), carried by the Republican candidate. Out of 487,441 votes cast, 199,623 went Democratic and 275,622 went Republican.
What is State Senate District 12, California's political archetype?
Akashic classifies State Senate District 12, California as a "Tossup" district based on its long-arc presidential voting pattern. Across 38 elections in the dataset, the district has voted Democratic 16 times, Republican 21 times, and other 1 times.
When did State Senate District 12, California last vote Democratic?
The most recent presidential election in which State Senate District 12, California voted Democratic was 1964.
How many people live in State Senate District 12, California?
State Senate District 12, California has a population of 1,580,955 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 12, California?
Median household income in State Senate District 12, California is $71,697 — below the national median of $80,734. The California state median is $99,122.
What is the political history of State Senate District 12, California?
Akashic tracks 38 presidential elections in State Senate District 12, California from 1876 to 2024. Of those, 16 went Democratic and 21 went Republican. The district's archetype — "Tossup" — captures the overall trajectory of that voting record.