San Joaquin County, California: New American county. In 2024, voted R+1%. Democratic peak: D+58 in 1912.
Key facts
- 2024 presidential margin
- R+1MIT Election Lab
- Political typology
- New AmericanAkashic typology
- Population
- 797,3342024 5-year
- Median household income
- $92,1792024 5-year
- White (non-Hispanic)
- 31.9%2024 5-year
- Black
- 6.9%2024 5-year
- Hispanic / Latino
- 42.5%2024 5-year
- Peak Democratic margin
- D+58 in 1912MIT Election Lab
- Peak Republican margin
- R+38 in 1924MIT Election Lab
- Most similar
- Merced County, CA · similarity 0.89
2024 results by precinct
2024 precinct map of San Joaquin CountyPrecinct-level 2024 presidential results for San Joaquin County, with each precinct boundary colored by Democratic-vs-Republican margin.
—
Margin—
Turnout—
Harris +50Trump +50
Real precinct boundaries. Hover for vote totals.
presidential history
Presidential margin, 1876–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1876 | −10.2% |
| 1880 | −3.2% |
| 1884 | −3.0% |
| 1888 | −0.1% |
| 1892 | +2.1% |
| 1896 | +0.0% |
| 1900 | −7.0% |
| 1904 | −30.2% |
| 1908 | −13.3% |
| 1912 | +58.0% |
| 1916 | +17.4% |
| 1920 | −28.0% |
| 1924 | −38.3% |
| 1928 | −23.2% |
| 1932 | +31.1% |
| 1936 | +47.6% |
| 1940 | +6.2% |
| 1944 | +5.3% |
| 1948 | −2.1% |
| 1952 | −12.0% |
| 1956 | −9.3% |
| 1960 | −6.1% |
| 1964 | +23.6% |
| 1968 | −5.3% |
| 1972 | −15.8% |
| 1976 | −1.5% |
| 1980 | −19.8% |
| 1984 | −20.4% |
| 1988 | −9.8% |
| 1992 | +3.4% |
| 1996 | +1.5% |
| 2000 | −1.2% |
| 2004 | −7.4% |
| 2008 | +10.6% |
| 2012 | +13.7% |
| 2016 | +14.2% |
| 2020 | +13.8% |
| 2024 | −0.9% |
DemocraticRepublican
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| R | 126,647 | 128,996 | 264,916 | ||
| D | 161,137 | 121,098 | 289,781 | ||
| D | 121,124 | 88,936 | 227,002 | ||
| D | 114,121 | 86,071 | 205,364 | ||
| D | 113,974 | 91,607 | 210,308 | ||
| R | 87,012 | 100,978 | 189,864 | ||
| R | 79,776 | 81,773 | 167,239 | ||
| D | 67,253 | 65,131 | 145,140 | ||
| D | 63,655 | 58,355 | 154,210 | ||
| R | 61,699 | 75,309 | 138,453 | ||
| R | 53,846 | 81,795 | 137,213 | ||
| R | 41,551 | 64,718 | 116,863 | ||
| R | 48,733 | 50,277 | 101,361 | ||
| R | 44,062 | 61,646 | 111,469 | ||
| R | 42,073 | 47,293 | 98,589 | ||
| D | 59,210 | 36,546 | 95,839 | ||
| R | 42,855 | 48,441 | 91,657 | ||
| R | 36,941 | 44,491 | 81,600 | ||
| R | 34,510 | 44,033 | 79,107 | ||
| R | 27,908 | 29,135 | 59,361 | ||
| D | 27,074 | 24,357 | 51,588 | ||
| D | 26,536 | 23,403 | 50,498 | ||
| D | 29,078 | 10,172 | 39,723 | ||
| D | 21,929 | 11,145 | 34,626 | ||
| R | 10,343 | 16,695 | 27,326 | ||
| R | 2,397 | 11,056 | 22,607 | ||
| R | 6,487 | 12,003 | 19,698 | ||
| D | 11,454 | 7,861 | 20,661 | ||
| D | 7,969 | 0 | 13,739 | ||
| R | 3,331 | 4,470 | 8,564 | ||
| R | 2,293 | 4,498 | 7,296 | ||
| R | 2,873 | 3,318 | 6,379 | ||
| O | 3,500 | 3,500 | 7,167 | ||
| D | 3,106 | 2,958 | 7,029 | ||
| R | 2,822 | 2,829 | 5,981 | ||
| R | 2,898 | 3,079 | 6,119 | ||
| R | 2,409 | 2,568 | 4,985 | ||
| R | 1,850 | 2,270 | 4,120 |
Demographics
2024 ACS
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
6.4%
English
5.1%
Irish
4.7%
Italian
3.7%
American
1.8%
French
0.9%
Scottish
0.9%
African American
5.5%
Multiple ancestry combinations reported; no single grouping above 1%.
American Indian, Alaska Native, Native Hawaiian, and Pacific Islander combined.
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.
2024 ACS
Age distribution by sex
Median age: 35.4 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.
2024 ACS
Median household income
Inflation-adjusted dollars
$92,179
San Joaquin County ranks in the top 10% of US counties.
San Joaquin County$92,179
California$99,122
United States$80,734
San Joaquin County ranks in the top 10% of US counties by median household income.
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Poverty rate
All persons below federal poverty line
12.4%
Children face moderate poverty.
Children under 1816.4%
Working age (18–64)10.9%
Seniors (65+)12.7%
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Language at home
Population aged 5 and older
57.0%
speak English only
Spanish27.1%
Asian & Pacific Islander9.2%
Other Indo-European5.8%
Other languages0.9%
Source · ACS 5-year estimates, 2024.
2020 religion census
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 61.8% of residents not counted as adherents by any reporting body.
San Joaquin County's rapid suburban growth around Stockton has compressed its presidential margins over two cycles, flipping to a slim Republican edge in 2024 after years of Democratic pluralities driven by its large Latino and Southeast Asian communities.
San Joaquin County has leaned Republican in recent presidential elections, reaching a Democratic margin of fifty-eight points in 1912. Between 2020 and 2024 it moved fifteen points toward the Republican candidate — part of the sharpest rightward shift recorded among any group of places in the country.
Its demographics describe the shift: a 32% non-Hispanic-white share, a median household income of $92,179, and a population of 797,334. The county's voting pattern over the last decade is most similar to that of Merced County and Cumberland County.
Most similar counties
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.
San Joaquin County, California. Akashic. https://akashic.app/county/06077/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
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Frequently asked questions
How did San Joaquin County, California vote in 2024?
In 2024, San Joaquin County, California voted Republican by 0.9 points (R+1), carried by the Republican candidate. Out of 264,916 votes cast, 126,647 went Democratic and 128,996 went Republican.
What is San Joaquin County, California's political typology?
Akashic places San Joaquin County, California in the "New American" typology — Communities where a large share of households speak a language other than English — multilingual, Democratic-leaning overall, yet the hardest-swinging bloc toward the Republican Party in 2024. The typology is a data-driven cluster built from vote share, vote swing, race and ethnicity, income, language spoken at home, religion, and ancestry. Across 38 elections in the dataset, the county has voted Democratic 14 times, Republican 23 times, and other 1 times.
When did San Joaquin County, California last vote Democratic?
The most recent presidential election in which San Joaquin County, California voted Democratic was 2020.
How many people live in San Joaquin County, California?
San Joaquin County, California has a population of 797,334 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in San Joaquin County, California?
Median household income in San Joaquin County, California is $92,179 — above the national median of $80,734. The California state median is $99,122.
What is the political history of San Joaquin County, California?
Akashic tracks 38 presidential elections in San Joaquin County, California from 1876 to 2024. Of those, 14 went Democratic and 23 went Republican. The county's typology — "New American" — captures where that record, its demographics, and its recent swing place it among American communities.