Harry S. Truman carried California D+0.4.

Harry S. Truman (D) vs Thomas E. Dewey (R) in California, 1948. The state ran 4.0 points more Republican than the nation (D+4.5 nationally).

Nominees: Harry S. Truman (D) · Thomas E. Dewey (R) · Strom Thurmond (States' Rights Democratic)

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California result

4,021,538 votes counted

Truman (D)

1,913,134

47.6%

Dewey (R)

1,895,269

47.1%

Thurmond + others

213,135

5.3%

Margin

D+0.4

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1948 presidential election

California, 1948

How it voted

Share of the 1948 vote

Harry S. Truman ✓Democratic	47.6%	1,913,134
Thomas E. DeweyRepublican	47.1%	1,895,269
Strom ThurmondStates' Rights	5.3%	213,135

D+60

R+60

58 counties, each filled by 1948 D-vs-R margin. Hover any county for its result.

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California's presidential margins

1876–2024, the 1948 contest in context

California's presidential margins

Year	Margin (D minus R)
1876	−1.8%
1880	+0.1%
1884	−6.7%
1888	−2.8%
1892	+1.2%
1896	−0.6%
1900	−13.1%
1904	−34.9%
1908	−22.5%
1912	+41.8%
1916	+0.4%
1920	−41.9%
1924	−49.0%
1928	−30.5%
1932	+21.0%
1936	+35.3%
1940	+16.1%
1944	+13.5%
1948	+0.4%
1952	−13.6%
1956	−11.1%
1960	−0.5%
1964	+18.3%
1968	−3.1%
1972	−13.5%
1976	−1.8%
1980	−16.8%
1984	−16.2%
1988	−3.6%
1992	+13.4%
1996	+12.9%
2000	+11.8%
2004	+9.9%
2008	+24.0%
2012	+23.1%
2016	+30.0%
2020	+29.1%
2024	+20.1%

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County results — 1948

58 counties; every row links to the county's full page.

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County	Won	Margin	Democratic	Republican	Total
Alameda County	D	+1.2%	154,549	150,588	323,331
Alpine County	R	−58.7%	25	106	138
Amador County	D	+18.6%	2,334	1,578	4,063
Butte County	R	−3.7%	10,133	10,948	22,181
Calaveras County	D	+2.7%	1,995	1,888	4,037
Colusa County	D	+5.6%	2,020	1,803	3,901
Contra Costa County	D	+14.6%	50,277	36,958	91,376
Del Norte County	R	−13.0%	1,172	1,541	2,840
El Dorado County	D	+8.9%	3,493	2,894	6,724
Fresno County	D	+21.3%	47,762	30,379	81,665
Glenn County	R	−4.4%	2,578	2,819	5,528
Humboldt County	D	+1.2%	11,268	10,979	23,266
Imperial County	R	−7.8%	5,301	6,217	11,810
Inyo County	R	−15.6%	1,539	2,135	3,827
Kern County	D	+14.6%	33,029	24,464	58,811
Kings County	D	+22.7%	6,909	4,289	11,521
Lake County	R	−19.8%	1,999	3,054	5,333
Lassen County	D	+29.0%	3,632	1,960	5,773
Los Angeles County	D	+0.5%	812,690	804,232	1,729,082
Madera County	D	+20.2%	5,226	3,416	8,982
Marin County	R	−18.9%	12,540	18,747	32,855
Mariposa County	R	−16.0%	983	1,378	2,467
Mendocino County	R	−6.5%	5,553	6,368	12,603
Merced County	D	+12.3%	9,959	7,721	18,124
Modoc County	D	+4.0%	1,607	1,480	3,180
Mono County	R	−34.3%	255	541	835
Monterey County	R	−4.5%	15,704	17,233	34,063
Napa County	R	−9.2%	7,207	8,724	16,516
Nevada County	R	−0.0%	3,914	3,917	8,326
Orange County	R	−24.5%	29,018	48,587	79,814
Placer County	D	+21.6%	8,837	5,570	15,109
Plumas County	D	+29.0%	3,125	1,657	5,058
Riverside County	R	−15.4%	23,305	32,209	57,864
Sacramento County	D	+20.6%	54,197	35,074	92,842
San Benito County	R	−13.6%	2,096	2,775	4,987
San Bernardino County	R	−0.9%	45,691	46,570	95,838
San Diego County	R	−1.6%	98,217	101,552	205,459
San Francisco County	D	+2.2%	167,726	160,135	350,709
San Joaquin County	R	−2.1%	27,908	29,135	59,361
San Luis Obispo County	R	−11.3%	8,135	10,325	19,304
San Mateo County	R	−17.0%	34,215	48,909	86,272
Santa Barbara County	R	−20.1%	13,085	19,998	34,400
Santa Clara County	R	−11.1%	41,905	52,982	99,502
Santa Cruz County	R	−20.7%	9,862	15,395	26,690
Shasta County	D	+17.2%	7,177	5,010	12,623
Sierra County	D	+9.1%	660	546	1,258
Siskiyou County	D	+11.5%	6,749	5,315	12,498
Solano County	D	+29.8%	23,257	12,345	36,624
Sonoma County	R	−15.1%	16,026	22,077	39,984
Stanislaus County	R	−0.6%	18,350	18,564	38,371
Sutter County	R	−7.4%	3,362	3,913	7,458
Tehama County	R	−6.6%	2,920	3,348	6,530
Trinity County	D	+3.6%	1,053	975	2,163
Tulare County	D	+3.2%	19,681	18,414	39,192
Tuolumne County	R	−1.4%	2,561	2,639	5,474
Ventura County	D	+12.6%	18,100	13,930	33,049
Yolo County	D	+8.6%	6,655	5,560	12,684
Yuba County	D	+2.8%	3,608	3,403	7,263