California 30th State House District, California: Urban anchor district. In 2024, voted D+20%. Republican peak: R+44 in 1924.
Key facts
- 2024 presidential margin
- D+20MIT Election Lab
- Political archetype
- Urban anchorAkashic typology
- Population
- 576,7592024 5-year
- Median household income
- $98,0822024 5-year
- White (non-Hispanic)
- 53.3%2024 5-year
- Black
- 1.6%2024 5-year
- Hispanic / Latino
- 42.7%2024 5-year
- Peak Democratic margin
- D+43 in 1912MIT Election Lab
- Peak Republican margin
- R+44 in 1924MIT Election Lab
Constituent county margins for Assembly District 30, 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 |
|---|---|---|---|---|---|
| D | 148,898 | 97,233 | 254,063 | ||
| D | 170,192 | 97,757 | 274,624 | ||
| D | 131,860 | 79,157 | 231,921 | ||
| D | 121,806 | 84,609 | 213,686 | ||
| D | 132,926 | 86,683 | 225,455 | ||
| D | 114,406 | 99,656 | 217,606 | ||
| D | 93,139 | 86,151 | 191,855 | ||
| D | 81,993 | 73,570 | 177,486 | ||
| D | 80,921 | 61,045 | 187,820 | ||
| R | 72,571 | 80,933 | 155,711 | ||
| R | 57,282 | 87,274 | 146,303 | ||
| R | 41,825 | 71,487 | 131,704 | ||
| R | 51,577 | 56,179 | 111,304 | ||
| R | 44,222 | 61,055 | 109,002 | ||
| R | 35,339 | 42,766 | 84,367 | ||
| D | 49,659 | 31,971 | 81,774 | ||
| R | 32,538 | 41,031 | 73,916 | ||
| R | 24,942 | 36,689 | 61,836 | ||
| R | 20,620 | 36,834 | 57,847 | ||
| R | 18,811 | 22,550 | 43,050 | ||
| D | 17,846 | 16,490 | 34,516 | ||
| D | 18,681 | 15,685 | 34,783 | ||
| D | 16,388 | 10,349 | 27,120 | ||
| D | 14,253 | 7,907 | 23,288 | ||
| R | 6,253 | 10,743 | 17,218 | ||
| R | 1,356 | 7,286 | 13,435 | ||
| R | 2,895 | 7,630 | 11,908 | ||
| D | 6,388 | 5,512 | 13,016 | ||
| O | 4,631 | 0 | 10,801 | ||
| R | 2,542 | 3,839 | 7,353 | ||
| R | 2,145 | 3,795 | 6,657 | ||
| R | 2,995 | 2,998 | 6,241 | ||
| D | 3,569 | 3,026 | 6,749 | ||
| R | 2,342 | 2,674 | 6,697 | ||
| R | 2,909 | 3,045 | 6,175 | ||
| R | 2,059 | 2,314 | 4,507 | ||
| R | 1,587 | 1,735 | 3,531 | ||
| D | 1,682 | 1,666 | 3,349 |
Demographics
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
10.4%
English
10.2%
Irish
9.0%
Italian
5.0%
Scottish
2.0%
American
1.9%
French
1.9%
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: 38.1 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
$98,082
Assembly District 30 ranks near the middle of US counties.
Assembly District 30$98,082
California$99,122
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
12.7%
Child poverty is below the national average.
Children under 1814.9%
Working age (18–64)12.1%
Seniors (65+)10.7%
Source · American Community Survey 5-year estimates, 2024 release.
Language at home
Population aged 5 and older
63.5%
speak English only
Spanish30.9%
Asian & Pacific Islander2.8%
Other Indo-European2.1%
Other languages0.8%
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 51.5% of residents not counted as adherents by any reporting body.
Anchored in the western San Gabriel Valley, AD-30 has delivered double-digit Democratic presidential margins for more than a decade, reflecting a diverse, densely populated suburban electorate that trends heavily toward the party in statewide contests.
The Democratic margin in California 30th State House District has been steady. It reached its modern peak at forty-three points in 1912; the 2024 margin was twenty points, still in line with the district's long pattern.
Its political identity is inseparable from its demographic profile: a 53% non-Hispanic-white share, a median household income of $98,082, and the full diversity of a major metropolitan center.
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.
Assembly District 30, California. Akashic. https://akashic.app/sld-lower/06030/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Frequently asked questions
How did Assembly District 30, California vote in 2024?
In 2024, Assembly District 30, California voted Democratic by 20.3 points (D+20), carried by the Democratic candidate. Out of 254,063 votes cast, 148,898 went Democratic and 97,233 went Republican.
What is Assembly District 30, California's political archetype?
Akashic classifies Assembly District 30, California as a "Urban anchor" district based on its long-arc presidential voting pattern. Across 38 elections in the dataset, the district has voted Democratic 17 times, Republican 20 times, and other 1 times.
When did Assembly District 30, California last vote Republican?
The most recent presidential election in which Assembly District 30, California voted Republican was 1988.
How many people live in Assembly District 30, California?
Assembly District 30, California has a population of 576,759 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Assembly District 30, California?
Median household income in Assembly District 30, California is $98,082 — above the national median of $80,734. The California state median is $99,122.
What is the political history of Assembly District 30, California?
Akashic tracks 38 presidential elections in Assembly District 30, California from 1876 to 2024. Of those, 17 went Democratic and 20 went Republican. The district's archetype — "Urban anchor" — captures the overall trajectory of that voting record.