San Joaquin County, California

2024 results by precinct

232 precincts · 264,916 votes cast

Trump · R+1

Harris +50

Trump +50

Real precinct boundaries. Hover for vote totals.

38 presidential elections

Year	Won	Margin	Democratic	Republican	Total
2024	R	−0.9%	126,647	128,996	264,916
2020	D	+13.8%	161,137	121,098	289,781
2016	D	+14.2%	121,124	88,936	227,002
2012	D	+13.7%	114,121	86,071	205,364
2008	D	+10.6%	113,974	91,607	210,308
2004	R	−7.4%	87,012	100,978	189,864
2000	R	−1.2%	79,776	81,773	167,239
1996	D	+1.5%	67,253	65,131	145,140
1992	D	+3.4%	63,655	58,355	154,210
1988	R	−9.8%	61,699	75,309	138,453
1984	R	−20.4%	53,846	81,795	137,213
1980	R	−19.8%	41,551	64,718	116,863
1976	R	−1.5%	48,733	50,277	101,361
1972	R	−15.8%	44,062	61,646	111,469
1968	R	−5.3%	42,073	47,293	98,589
1964	D	+23.6%	59,210	36,546	95,839
1960	R	−6.1%	42,855	48,441	91,657
1956	R	−9.3%	36,941	44,491	81,600
1952	R	−12.0%	34,510	44,033	79,107
1948	R	−2.1%	27,908	29,135	59,361
1944	D	+5.3%	27,074	24,357	51,588
1940	D	+6.2%	26,536	23,403	50,498
1936	D	+47.6%	29,078	10,172	39,723
1932	D	+31.1%	21,929	11,145	34,626
1928	R	−23.2%	10,343	16,695	27,326
1924	R	−38.3%	2,397	11,056	22,607
1920	R	−28.0%	6,487	12,003	19,698
1916	D	+17.4%	11,454	7,861	20,661
1912	D	+58.0%	7,969	0	13,739
1908	R	−13.3%	3,331	4,470	8,564
1904	R	−30.2%	2,293	4,498	7,296
1900	R	−7.0%	2,873	3,318	6,379
1896	D	+0.0%	3,500	3,500	7,167
1892	D	+2.1%	3,106	2,958	7,029
1888	R	−0.1%	2,822	2,829	5,981
1884	R	−3.0%	2,898	3,079	6,119
1880	R	−3.2%	2,409	2,568	4,985
1876	R	−10.2%	1,850	2,270	4,120

Demographics

Race, ethnicity, and ancestry

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

American

100.0%

Polish

0.8%

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. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.

Age distribution by sex

Median age: 35.4 in this county, 39.1 nationally

Male

Age

Female

0.5%

85+

0.9%

1.7%

75–84

2.3%

3.8%

65–74

4.3%

5.5%

55–64

5.6%

6.1%

45–54

5.9%

7.2%

35–44

6.9%

7.0%

25–34

6.8%

4.8%

18–24

4.5%

10.1%

5–17

9.6%

3.3%

3.2%

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

Median household income

2024 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

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

Poverty rate

All persons below federal poverty line

12.4%

Children face moderate poverty.

Children under 1818.0%

Working age (18–64)100.0%

Seniors (65+)18.0%

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

Language at home

Population aged 5 and older

0.0%

speak English only

Source · ACS 5-year estimates, 2024.

Religious adherents

Adherents per capita by tradition

Catholic & Orthodox

21.7%

Other Christian

7.9%

Non-Christian

2.6%

Pentecostal & Holiness

2.4%

Baptist

1.9%

Mainline Protestant

1.2%

Methodist

0.5%

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.

The county's recent history is a story of close margins. The Democratic margin reached fifty-eight points in 1912; the Republican margin reached thirty-eight points in 1924. Most other elections have been decided by single-digit points.

San Joaquin County's demographics — a population of 797,334, a 32% non-Hispanic-white share, a median household income of $92,179 — situate the county close to national averages on several dimensions. The county's voting pattern over the last decade is most similar to that of Merced County and Cumberland County.

Most similar counties

San Joaquin County delivered a near-tie in 2024.