Alameda County, California

2024 results by precinct

391 precincts · 669,800 votes cast

Harris · D+54

Harris +50

Trump +50

Real precinct boundaries. Hover for vote totals.

38 presidential elections

Year	Won	Margin	Democratic	Republican	Total
2024	D	+53.6%	499,551	140,789	669,800
2020	D	+62.2%	617,659	136,309	773,753
2016	D	+63.5%	514,842	95,922	659,543
2012	D	+60.6%	469,684	108,182	596,893
2008	D	+59.3%	489,106	119,555	622,913
2004	D	+51.9%	422,585	130,911	562,090
2000	D	+45.2%	342,889	119,279	494,336
1996	D	+42.7%	303,903	106,581	462,044
1992	D	+42.4%	334,224	109,292	530,145
1988	D	+30.8%	310,283	162,815	478,997
1984	D	+18.6%	282,041	192,408	480,874
1980	D	+10.3%	201,720	158,531	417,617
1976	D	+19.8%	235,988	155,280	407,681
1972	D	+12.2%	259,254	201,862	471,195
1968	D	+16.3%	219,545	153,285	407,349
1964	D	+33.0%	283,833	142,998	427,340
1960	D	+8.4%	217,172	183,354	402,000
1956	R	−5.1%	174,033	192,911	368,131
1952	R	−5.2%	173,853	192,941	369,776
1948	D	+1.2%	154,549	150,588	323,331
1944	D	+15.9%	169,631	122,982	293,987
1940	D	+11.6%	148,224	116,961	268,496
1936	D	+28.5%	149,323	82,352	234,686
1932	D	+8.4%	106,388	89,303	204,452
1928	R	−31.8%	60,875	118,539	181,194
1924	R	−55.4%	8,020	81,454	132,490
1920	R	−48.8%	21,468	73,177	105,889
1916	R	−7.5%	43,748	51,417	102,131
1912	D	+36.7%	24,418	0	66,452
1908	R	−42.9%	7,110	21,380	33,283
1904	R	−54.1%	4,399	19,065	27,110
1900	R	−34.5%	6,677	14,324	22,159
1896	R	−22.7%	8,394	13,429	22,223
1892	R	−9.1%	7,114	8,792	18,470
1888	R	−20.4%	5,693	8,840	15,461
1884	R	−22.1%	4,734	7,471	12,398
1880	R	−20.2%	3,894	5,897	9,897
1876	R	−19.2%	3,347	4,938	8,297

Demographics

Race, ethnicity, and ancestry

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

American

100.0%

African American

7.7%

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: 39.0 in this county, 39.1 nationally

Male

Age

Female

0.7%

85+

1.2%

2.0%

75–84

2.5%

4.2%

65–74

4.8%

6.0%

55–64

6.1%

6.7%

45–54

6.6%

8.1%

35–44

7.8%

25–34

7.8%

4.0%

18–24

4.0%

7.5%

5–17

7.1%

2.7%

2.6%

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

Median household income

2024 inflation-adjusted dollars

$129,367

Alameda County ranks in the top 0.5% of US counties.

Alameda County$129,367

California$99,122

United States$80,734

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

Poverty rate

All persons below federal poverty line

9.2%

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

19.9%

Other Christian

7.3%

Non-Christian

7.1%

Baptist

2.6%

Pentecostal & Holiness

2.2%

Mainline Protestant

1.2%

Methodist

0.7%

Source · 2020 US Religion Census. Remaining 59.0% of residents not counted as adherents by any reporting body.

Alameda's dense urban core around Oakland and Berkeley anchors a Democratic presidential margin that has exceeded 50 points in recent cycles, making it a reliable high-turnout base rather than a competitive battleground.

The Democratic margin in Alameda County has been steady. It reached its modern peak at sixty-four points in 2016; the 2024 margin was fifty-four points, still in line with the county's long pattern.

Alameda County's political identity is inseparable from its demographic profile: a 30% non-Hispanic-white share, a median household income of $129,367, and the full diversity of a major metropolitan center. The county's voting pattern resembles other major urban centers most closely — Holmes County and Santa Fe County.

Most similar counties

Alameda County is one of the bluest places in America.