akashic
1876–2024
Assembly District 51·California

California 51st State House District has voted Democratic in ten straight presidential cycles.

A reliably Democratic district anchored in the eastern San Gabriel Valley

1876 — 2024·38 elections
CA
Latest
D+33
in 2024
Archetype
Democratic loyalist
since the recent cycles
Population
135,472
2024 ACS

California 51st State House District, California: Democratic loyalist district. In 2024, voted D+33%. Republican peak: R+58 in 1924.

Key facts

2024 presidential margin
D+33MIT Election Lab
Political archetype
Democratic loyalistAkashic typology
Population
135,4722024 5-year
Median household income
$90,1122024 5-year
White (non-Hispanic)
30.9%2024 5-year
Black
7.7%2024 5-year
Hispanic / Latino
48.4%2024 5-year
Peak Democratic margin
D+49 in 2016MIT Election Lab
Peak Republican margin
R+58 in 1924MIT Election Lab
2024 results by constituent county
1 counties · 1 D · 0 R
R+60
D+60
One cell per constituent county. Ordered by 2024 D-vs-R margin (bluest first). Hover for county-level numbers.
38 presidential elections
Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024).
YearWonMarginDemocraticRepublicanTotal
D
+32.9%
33,38416,43451,504
D
+44.0%
41,83315,82159,168
D
+49.3%
34,03710,63147,433
D
+41.9%
30,61912,22843,935
D
+40.4%
31,70913,21045,830
D
+27.5%
26,34914,86441,756
D
+31.1%
23,62512,04337,224
D
+28.4%
19,75910,31133,300
D
+23.5%
19,97911,04438,029
D
+5.0%
18,95417,12236,527
R
−10.2%
16,00619,66936,088
R
−10.0%
13,53316,91333,703
D
+1.9%
16,87616,22733,964
R
−12.7%
16,43521,40439,092
R
−1.6%
16,89517,49236,711
D
+14.9%
21,66116,03637,718
D
+0.8%
18,28417,99236,386
R
−11.1%
13,92017,40531,427
R
−12.6%
13,12216,94630,402
D
+0.5%
11,22411,10823,881
D
+14.1%
12,2409,20521,568
D
+17.6%
11,3637,93119,547
D
+35.4%
10,4604,93615,613
D
+18.6%
7,6585,16213,392
R
−41.5%
2,9007,09310,100
R
−58.2%
4634,1396,318
R
−47.5%
7692,4603,560
R
−8.0%
1,5751,8723,700
O
+33.3%
76102,283
R
−26.6%
3055731,009
R
−45.9%
139449675
R
−17.3%
182265481
R
−2.3%
222233470
R
−9.2%
112141315
R
−14.6%
140191349
R
−8.0%
6577150
R
−1.2%
394084
D
+8.7%
504292

Demographics

Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
4.3%
Irish
3.8%
English
3.8%
American
3.1%
Italian
2.5%
Polish
1.1%
French
1.0%
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: 38.2 in this county, 39.1 nationally
Male
Age
Female
0.7%
85+
1.2%
1.9%
75–84
2.5%
4.1%
65–74
4.8%
6.1%
55–64
6.3%
6.5%
45–54
6.6%
7.2%
35–44
6.9%
8.0%
25–34
7.8%
4.5%
18–24
4.4%
7.9%
5–17
7.5%
2.6%
<5
2.5%
Source · American Community Survey 5-year estimates, 2024 release.
Median household income
2024 inflation-adjusted dollars
$90,112
Assembly District 51 ranks near the middle of US counties.
Assembly District 51$90,112
California$99,122
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
13.7%
Children face moderate poverty.
Children under 1817.6%
Working age (18–64)12.5%
Seniors (65+)15.9%
Source · American Community Survey 5-year estimates, 2024 release.
Language at home
Population aged 5 and older
44.9%
speak English only
Spanish37.6%
Asian & Pacific Islander10.7%
Other Indo-European5.6%
Other languages1.2%
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Catholic & Orthodox
31.9%
Other Christian
7.9%
Non-Christian
3.8%
Pentecostal & Holiness
3.0%
Baptist
2.3%
Mainline Protestant
1.1%
Methodist
0.9%
Source · 2020 US Religion Census. Remaining 49.1% of residents not counted as adherents by any reporting body.

Assembly District 51 has returned Democratic presidential margins above 20 points in recent cycles, reflecting a heavily Latino and Asian-American electorate spread across working-class suburbs east of Los Angeles.

The Democratic margin in California 51st State House District reached its widest at forty-nine points in 2016. The margin in 2024 was thirty-three points — still decisive.

Its loyalty is rooted in its place. Median household income of $90,112, a 31% non-Hispanic-white share, and a population of 135,472 together describe a district whose political habits are deeply settled.

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 51, California. Akashic. https://akashic.app/sld-lower/06051/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0

Frequently asked questions

How did Assembly District 51, California vote in 2024?
In 2024, Assembly District 51, California voted Democratic by 32.9 points (D+33), carried by the Democratic candidate. Out of 51,504 votes cast, 33,384 went Democratic and 16,434 went Republican.
What is Assembly District 51, California's political archetype?
Akashic classifies Assembly District 51, California as a "Democratic loyalist" district based on its long-arc presidential voting pattern. Across 38 elections in the dataset, the district has voted Democratic 19 times, Republican 18 times, and other 1 times.
When did Assembly District 51, California last vote Republican?
The most recent presidential election in which Assembly District 51, California voted Republican was 1984.
How many people live in Assembly District 51, California?
Assembly District 51, California has a population of 135,472 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Assembly District 51, California?
Median household income in Assembly District 51, California is $90,112 — above the national median of $80,734. The California state median is $99,122.
What is the political history of Assembly District 51, California?
Akashic tracks 38 presidential elections in Assembly District 51, California from 1876 to 2024. Of those, 19 went Democratic and 18 went Republican. The district's archetype — "Democratic loyalist" — captures the overall trajectory of that voting record.