Congressional District 1 Congressional District (CA) — Elections 1876–2024

California 1st Congressional District, California: Republican loyalist district. In 2024, voted R+25%. Democratic peak: D+49 in 1912.

Key facts

2024 presidential margin: R+25MIT Election Lab
Political archetype: Republican loyalistAkashic typology
Population: 712,3372024 5-year
Median household income: $70,2352024 5-year
White (non-Hispanic): 66.5%2024 5-year
Black: 1.6%2024 5-year
Hispanic / Latino: 22.9%2024 5-year
Peak Democratic margin: D+49 in 1912MIT Election Lab
Peak Republican margin: R+35 in 1920MIT Election Lab

2024 results by constituent county

21 counties · 4 D · 17 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).
Year	Won	Margin	Democratic	Republican	Total
2024	R	−25.2%	112,601	191,574	312,945
2020	R	−19.2%	131,331	195,562	335,195
2016	R	−21.5%	102,252	165,600	294,048
2012	R	−18.0%	108,816	158,760	277,692
2008	R	−14.1%	123,464	165,375	297,017
2004	R	−26.3%	102,775	177,942	285,467
2000	R	−28.5%	82,590	154,184	251,466
1996	R	−16.4%	85,680	124,929	239,415
1992	R	−4.8%	88,863	101,133	255,535
1988	R	−18.3%	85,168	124,005	212,790
1984	R	−28.8%	74,243	135,798	213,606
1980	R	−27.8%	59,811	113,757	194,036
1976	R	−2.0%	77,782	81,042	164,572
1972	R	−13.7%	62,896	84,306	155,854
1968	R	−10.3%	52,739	66,373	132,353
1964	D	+16.3%	77,671	55,910	133,688
1960	R	−1.2%	60,387	61,864	122,900
1956	R	−6.2%	50,490	57,174	108,113
1952	R	−20.2%	41,344	62,526	104,635
1948	D	+4.4%	41,290	37,645	81,911
1944	D	+10.8%	37,499	30,145	67,960
1940	D	+23.4%	48,658	30,013	79,552
1936	D	+38.0%	43,842	19,390	64,281
1932	D	+39.2%	38,914	16,266	57,718
1928	R	−17.8%	17,968	25,891	44,465
1924	O	−30.6%	5,057	17,239	39,752
1920	R	−35.1%	9,709	21,505	33,627
1916	D	+16.5%	22,190	15,443	40,874
1912	O	+49.1%	16,244	0	33,053
1908	R	−8.2%	9,726	11,668	23,770
1904	R	−21.4%	7,501	12,063	21,313
1900	R	−0.3%	10,376	10,430	21,364
1896	D	+12.1%	11,124	8,674	20,216
1892	D	+5.1%	10,147	9,073	21,224
1888	D	+5.8%	10,641	9,449	20,556
1884	D	+4.9%	9,126	8,245	17,837
1880	D	+6.6%	7,917	6,926	14,958
1876	D	+7.1%	6,712	5,819	12,492

Demographics

Race, ethnicity, and ancestry

Click any group to see the ancestries typically reported within it.

German

12.0%

English

11.7%

Irish

10.0%

American

5.2%

Italian

4.4%

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: 38.8 in this county, 39.1 nationally

Male

Age

Female

0.8%

85+

1.2%

2.7%

75–84

3.2%

5.5%

65–74

6.0%

55–64

6.3%

5.5%

45–54

5.3%

6.5%

35–44

6.0%

6.8%

25–34

6.1%

5.1%

18–24

4.7%

8.7%

5–17

8.1%

2.8%

2.7%

Source · American Community Survey 5-year estimates, 2024 release.

Median household income

2024 inflation-adjusted dollars

$70,235

Congressional District 1 ranks near the middle of US counties.

Congressional District 1$70,235

California$99,122

United States$80,734

Source · American Community Survey 5-year estimates, 2024 release.

Poverty rate

All persons below federal poverty line

15.7%

Children face moderate poverty.

Children under 1818.6%

Working age (18–64)15.1%

Seniors (65+)12.3%

Source · American Community Survey 5-year estimates, 2024 release.

Language at home

Population aged 5 and older

80.4%

speak English only

Spanish13.6%

Other Indo-European3.2%

Asian & Pacific Islander2.4%

Other languages0.3%

Source · ACS 5-year estimates, 2024.

Religious adherents

Adherents per capita by tradition

Other Christian

15.1%

Catholic & Orthodox

13.4%

Pentecostal & Holiness

3.1%

Mainline Protestant

1.2%

Baptist

1.0%

Methodist

0.7%

Non-Christian

0.6%

Source · 2020 US Religion Census. Remaining 64.9% of residents not counted as adherents by any reporting body.

California 1st Congressional District sits in the Pacific Coast. Its political identity has been Republican for as long as anyone now living can remember. 1 consecutive presidential elections in modern records have gone for the Republican candidate, often by margins that would be considered landslide territory anywhere else.

The Republican margin in California 1st Congressional District reached its widest at thirty-five points in 1920. The margin in 2024 was twenty-five points, in line with the district's deep historical pattern.

Its loyalty is rooted in its place. Median household income of $70,235, a 67% non-Hispanic-white share, and a population of 712,337 together describe a district whose political habits are deeply settled.

Cite this page

All citations released under CC BY 4.0. Attribution: Akashic Intelligence.

Congressional District 1, California — The Long Memory. Akashic Intelligence — The Long Memory. https://tiers.akashic.app/cd/0601/. Accessed May 20, 2026. License: CC BY 4.0.

License: CC BY 4.0

Frequently asked questions

How did Congressional District 1, California vote in 2024?

In 2024, Congressional District 1, California voted Republican by 25.2 points (R+25), carried by the Republican candidate. Out of 312,945 votes cast, 112,601 went Democratic and 191,574 went Republican.

What is Congressional District 1, California's political archetype?

Akashic classifies Congressional District 1, California as a "Republican loyalist" district based on its long-arc presidential voting pattern. Across 38 elections in the dataset, the district has voted Democratic 13 times, Republican 23 times, and other 2 times.

When did Congressional District 1, California last vote Democratic?

The most recent presidential election in which Congressional District 1, California voted Democratic was 1964.

How many people live in Congressional District 1, California?

Congressional District 1, California has a population of 712,337 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.

What is the median household income in Congressional District 1, California?

Median household income in Congressional District 1, California is $70,235 — below the national median of $80,734. The California state median is $99,122.

What is the political history of Congressional District 1, California?

Akashic tracks 38 presidential elections in Congressional District 1, California from 1876 to 2024. Of those, 13 went Democratic and 23 went Republican. The district's archetype — "Republican loyalist" — captures the overall trajectory of that voting record.

California 1st Congressional District has voted Republican in fifteen straight presidential cycles.

Key facts

Demographics

Frequently asked questions