California's 10th congressional district

"CA-10" redirects here. For the state route, see California State Route 10 (disambiguation).

California's 10th congressional district is a congressional district in the U.S. state of California. Currently, the 10th district encompasses parts of the eastern San Francisco Bay Area. It is currently represented by Democrat Mark DeSaulnier.

California's 10th congressional district
Interactive map of district boundaries since 2023 (Used in the 2022 elections)
Representative	Mark DeSaulnier D–Concord
Population (2021)	774,782
Median household income	$79,993^[1]
Ethnicity	43.9% White 42.0% Hispanic 6.6% Asian 3.2% Black 3.1% Two or more races 1.2% other
Cook PVI	D+18^[2]

California's 10th congressional district until 2023

The district previously included all of Stanislaus County and part of San Joaquin County. It was centered on Modesto. Cities in the district included Oakdale, Manteca, Modesto, Tracy, and Turlock.^[3]

Redistricting before the 2022 elections moved the district to the San Francisco Bay Area. It includes the cities of Concord, Walnut Creek, Danville, San Ramon, Brentwood, and southern Antioch in Contra Costa County, and eastern Dublin in Alameda County. The redistricting transformed the 10th from a competitive district to a heavily Democratic one.^[4]

History

Until 2012

Prior to redistricting by the California Citizens Redistricting Commission going into effect in 2012, the 10th district stretched from Livermore to Dixon and the outskirts of Vacaville. It consisted of portions of Alameda, Contra Costa, Sacramento, and Solano Counties.

 

District borders, 2002-2012.

Following redistricting in 1992, the 10th district was based in the East Bay, and included parts of Alameda and Contra Costa counties. It received national attention in 1996 when Democrat Ellen Tauscher defeated incumbent Republican Bill Baker in what was considered an upset.^[5]

In the 2002 redistricting of California, all seats were made safe^[6] for the parties of incumbent officeholders. The district boundaries were extended to include parts of Solano County, southwestern Sacramento County, eastern Contra Costa County and El Cerrito in western Contra Costa County. Although much of the suburban Tri-Valley region was shifted to the 11th congressional district, the city of Livermore remained in the 10th at Tauscher's request (as a member of the U.S. House Committee on Energy and Commerce, she had some oversight responsibilities over the U.S. Department of Energy, and hence indirectly of Lawrence Livermore National Laboratory).

On June 26, 2009, Tauscher resigned her seat to be sworn in as Undersecretary of State for Arms Control and International Security.^[7][8][9] In the ensuing special election held on November 3, 2009, former Democratic Lieutenant Governor John Garamendi won the seat over Republican David Harmer 53.0% to 42.7%. Immediately following redistricting, Garamendi successfully ran for re-election in California's 3rd congressional district, which shares many municipalities with the 2002 version of the 10th district (e.g. Vacaville and Fairfield), but lies significantly northwest of the current 10th district.

2012 – 2022

The 10th congressional district starting with the election of 2012 and lasting through the election of 2020 included all of Stanislaus County (including Ceres, Oakdale, Modesto, Riverbank, and Turlock) and the southern portion of San Joaquin County (including Tracy and Manteca).^[3]

This went into effect in 2012, as the result of redistricting by the California Citizens Redistricting Commission. This version of the 10th included much of the core of the old 18th district (Modesto, Ceres, and the southwestern half of Stanislaus County), though the 18th also included a substantial portion of Stockton. It also shares much of the northwestern portion of the old 19th district (Turlock, Riverbank, Oakdale, and the rest of northeastern Stanislaus County).

Republican Jeff Denham transferred from the prior 19th district to the newer 10th. He held it for three terms until being defeated in 2018 by Democrat Josh Harder, who won reelection in 2020.

After 2022

The 10th district was redrawn in time for the 2022 election, being divided up between California's 5th congressional district (which now includes eastern portions of Modesto and eastern portions of Turlock), California's 9th congressional district (which is centered on Stockton, California and includes Tracy), and California's 13th congressional district (which includes western Modesto and western Turlock) .^[10] Current 10th district incumbent Josh Harder is running for reelection in the new version of California's 9th congressional district.

Election results from statewide races

1992 – 2021

Year	Office	Results
1992	President	Clinton 42.4 - 35.6%
	Senator	Boxer 48.0 - 42.5%
	Senator	Feinstein 56.9 - 37.7%
1994	Governor^[11]	Wilson 59.7 - 37.1%
	Senator^[12]	Feinstein 52.3 - 42.0%
1996	President^[13]	Clinton 48.2 - 42.6%
1998	Governor^[14]	Davis 56.0 - 41.3%
	Senator^[15]	Boxer 50.2 - 46.8%
2000	President^[16]	Gore 51.3 - 44.8%
	Senator^[17]	Feinstein 55.8 - 40.0%
2002	Governor^[18]	Davis 49.9 - 39.1%
2003	Recall^[19]^[20]	52.6 - 47.4%
		Schwarzenegger 42.2 - 34.7%
2004	President^[21]	Kerry 58.5 - 40.4%
	Senator^[22]	Boxer 60.1 - 36.6%
2006	Governor^[23]	Schwarzenegger 56.2 - 38.7%
	Senator^[24]	Feinstein 65.5 - 30.0%
2008	President^[25]	Obama 64.7 - 33.1%
2010	Governor	Brown 57.4 - 38.7%
	Senator	Boxer 56.0 - 39.4%
2012	President	Obama 50.6 - 47.0%
	Senator^[26]	Feinstein 52.1 - 47.9%
2014	Governor^[27]	Brown 51.7 - 48.3%
2016	President	Clinton 48.5 - 45.5%
	Senator^[28]	Harris 57.1 - 42.9%
2018	Governor^[29]	Cox 50.5 - 49.5%
	Senator^[30]	de Leon 56.9 - 43.1%
2020	President	Biden 50.3 - 47.4%
2021	Recall^[31]^[32]	53.3 - 46.7%
		Elder 57.6 - 6.5%

Competitiveness

Voter Registration Statistics

The California Secretary of State publishes reports on California voter registration on a regular basis. Before the 2018 primary election, they published a report dating May 21, 2018.

Date	Democratic	Republican	American Independent	Green	Libertarian	No Party Preference
May 21, 2018^[33]	127,878	117,900	10,011	959	2,484	70,251

Composition

#	County	Seat	Population
13	Contra Costa	Martinez	1,161,413

As of the 2020 redistricting, California's 10th congressional district encompasses most of Contra Costa County, and part of Alameda County.

Contra Costa County is split between this district, the 8th district, and the 9th district. The northern border is partitioned by Grizzly Peak Blvd, Seaview Trail, Camino Pablo, Bear Creek Rd, San Pablo Creek, Bear Creek, Brianes Reservoir, Burlington Northern Santa Fe, Highway 4, Alhambra Ave, Pacheco Blvd, Grandview Ave, Central Ave, Imhoff Dr, Bares Ave, Mount Diablo Creek, Union Pacific, Contra Costa Canal, 4WD Rd, Bailey Rd, James Donlon Blvd, Cambridge Dr, Reseda Way, S Royal links Cir, Carpinteria Dr, Barmouth Dr, Hillcrest Ave, Highway 4, and Highway 160. The western border is partitioned by Old River, Italian Slough, Western Farms Ranch Rd, Rankin Rd, Highway J14, Byron Hot Springs Rd, Camino Diablo, Kellogg Creek, Sellers Ave, Brentwood Blvd, Alloro Dr, Ghiggeri Dr, Emilio Dr, Guthrie Ln, Balfour Rd, Chestnut St, Byron Highway, Orwood Rd, Burlington Northern Santa Fe, Werner Dredger Cut, and Rock Slough. The 10th district takes in the south sides of the cities of Antioch and Martinez, the cities of Concord, Brentwood, Oakley, Pleasant Hill, Clayton, Walnut Creek, Lafayette, Orinda, and San Ramon, as well as the towns of Danville and Moraga.

Alameda County is split between this district and the 14th district. They are partitioned by Sinclair Freeway, Amador Valley Blvd, Emerald Ave, Tamarack Dr, Brighton Dr, Ione Way, Newcastle Ln, Dougherty Rd, Highway 580, Lembert Hills Dr. The 10th district takes in San Ramon Village and Komandorski Village.

Cities & CDP with 10,000 or more people

• Concord - 129,295
• Antioch - 115,291
• San Ramon - 84,605
• Walnut Creek - 70,127
• Brentwood - 64,292
• Danville - 43,582
• Oakley - 43,357
• Martinez - 38,290
• Pleasant Hill - 34,613
• Lafayette - 25,391
• Orinda - 19,514
• Moraga - 16,870
• Clayton - 11,070

List of members representing the district

Member	Party	Dates	Cong ress	Electoral history	Counties
District created March 4, 1913
William Stephens	Progressive	March 4, 1913 – July 22, 1916	63rd 64th	Redistricted from the 7th district and re-elected in 1912. Re-elected in 1914. Resigned to become Lieutenant Governor of California.	1913–1933 Los Angeles (Los Angeles)
Vacant		July 22, 1916 – November 7, 1916	64th
Henry S. Benedict	Republican	November 7, 1916 – March 3, 1917		Elected to finish Stephens's term. Ran for the next term as a Progressive but withdrew.
Henry Z. Osborne	Republican	March 4, 1917 – February 8, 1923	65th 66th 67th	Elected in 1916. Re-elected in 1918. Re-elected in 1920. Re-elected in 1922 but died.
Vacant		February 8, 1923 – May 1, 1923	67th 68th
John D. Fredericks	Republican	May 1, 1923 – March 3, 1927	68th 69th	Elected to finish Osborne's term. Re-elected in 1924. Retired.
Joe Crail	Republican	March 4, 1927 – March 3, 1933	70th 71st 72nd	Elected in 1926. Re-elected in 1928. Re-elected in 1930. Retired.
Henry E. Stubbs	Democratic	March 4, 1933 – February 28, 1937	73rd 74th 75th	Elected in 1932. Re-elected in 1934. Re-elected in 1936. Died.	1933–1943 Kern, San Luis Obispo, Santa Barbara, Tulare, Ventura
Vacant		February 28, 1937 – May 4, 1937	75th
Alfred J. Elliott	Democratic	May 4, 1937 – January 3, 1949	75th 76th 77th 78th 79th 80th	Elected to finish Stubbs's term. Re-elected in 1938. Re-elected in 1940. Re-elected in 1942. Re-elected in 1944. Re-elected in 1946. Retired.
					1943–1953 Kern, Kings, Tulare
Thomas H. Werdel	Republican	January 3, 1949 – January 3, 1953	81st 82nd	Elected in 1948. Re-elected in 1950. Redistricted to the 14th district. Lost re-election.
Charles Gubser	Republican	January 3, 1953 – December 31, 1974	83rd 84th 85th 86th 87th 88th 89th 90th 91st 92nd 93rd	Elected in 1952. Re-elected in 1954. Re-elected in 1956. Re-elected in 1958. Re-elected in 1960. Re-elected in 1962. Re-elected in 1964. Re-elected in 1966. Re-elected in 1968. Re-elected in 1970. Re-elected in 1972. Retired and resigned.	1953–1963 San Benito, Santa Clara, Santa Cruz
					1963–1967 San Benito, western Santa Clara
					1967–1973 Western Santa Clara
					1973–1975 Most of Santa Clara
Vacant		December 31, 1974 – January 3, 1975	93rd
Don Edwards	Democratic	January 3, 1975 – January 3, 1993	94th 95th 96th 97th 98th 99th 100th 101st 102nd	Redistricted from the 9th district and re-elected in 1974. Re-elected in 1976. Re-elected in 1978. Re-elected in 1980. Re-elected in 1982. Re-elected in 1984. Re-elected in 1986. Re-elected in 1988. Re-elected in 1990. Redistricted to the 16th district.	1975–1983 Southwest Alameda, northern Santa Clara
					1983–1993 SW Alameda, Santa Clara (eastern San Jose)
Bill Baker	Republican	January 3, 1993 – January 3, 1997	103rd 104th	Elected in 1992. Re-elected in 1994. Lost re-election.	1993–2003 Eastern Alameda, eastern Contra Costa
Ellen Tauscher	Democratic	January 3, 1997 – June 26, 2009	105th 106th 107th 108th 109th 110th 111th	Elected in 1996. Re-elected in 1998. Re-elected in 2000. Re-elected in 2002. Re-elected in 2004. Re-elected in 2006. Re-elected in 2008. Resigned to become Undersecretary of State for Arms Control and International Security.
					2003–2013 Southeast Alameda, most of Contra Costa, southwest Sacramento, most of Solano
Vacant		June 26, 2009 – November 3, 2009	111th
John Garamendi	Democratic	November 3, 2009 – January 3, 2013	111th 112th	Elected to finish Tauscher's term. Re-elected in 2010. Redistricted to the 3rd district.
Jeff Denham	Republican	January 3, 2013 – January 3, 2019	113th 114th 115th	Redistricted from the 19th district and re-elected in 2012. Re-elected in 2014. Re-elected in 2016. Lost re-election.	2013–2023 Central Valley including Modesto and Tracy
Josh Harder	Democratic	January 3, 2019 – January 3, 2023	116th 117th	Elected in 2018. Re-elected in 2020. Redistricted to the 9th district.
Mark DeSaulnier	Democratic	January 3, 2023 – present	118th	Redistricted from the 11th district and re-elected in 2022.

Election results for representatives

1912

1912 United States House of Representatives elections

Party		Candidate	Votes	%
	Progressive	William Stephens (Incumbent)	43,637	53.4
	Democratic	George Ringo	17,890	21.9
	Socialist	Fred C. Wheeler	17,126	21.0
	Prohibition	Emory D. Martindale	2,995	3.7
Total votes			81,648	100.0
Turnout
	Progressive hold

1914

1914 United States House of Representatives elections

Party		Candidate	Votes	%
	Progressive	William Stephens (Incumbent)	44,141	38.4
	Republican	Henry Z. Osborne	33,172	28.9
	Democratic	Nathan Newby	17,810	15.5
	Socialist	Ralph L. Criswell	14,900	13.0
	Prohibition	Henry Clay Needham	4,903	4.3
Total votes			70,926	100.0
Turnout
	Progressive hold

1916 (Special)

1916 10th congressional district special election^[34]

Party		Candidate	Votes	%
	Progressive	Henry S. Benedict (write-in)	19,062	62.82
	Independent	Joy Clark (write-in)	7,149	23.59
	Prohibition	Henry Clay Needham (write-in)	1,310	4.32
	Unknown	George Clark (write-in)	1,073	3.54
	Socialist	James H. Ryckman (write-in)	911	3.01
	Democratic	Rufus V. Bowden (write-in)	553	1.83
	Unknown	John C. Wray (write-in)	270	0.89
Total votes			30,328	100.0
Turnout
	Progressive hold

1916

1916 United States House of Representatives elections

Party		Candidate	Votes	%
	Republican	Henry Z. Osborne	63,913	49.5
	Democratic	Rufus W. Bowden	33,225	25.7
	Progressive	Henry Stanley Benedict	14,305	11.1
	Socialist	James H. Ryckman	9,000	7.0
	Prohibition	Henry Clay Needham	8,781	6.8
Total votes			129,224	100.0
Turnout
	Republican hold

1918

1918 United States House of Representatives elections

Party		Candidate	Votes	%
	Republican	Henry Z. Osborne (Incumbent)	72,773	88.2
	Socialist	James H. Ryckman	9,725	11.8
Total votes			82,498	100.0
Turnout
	Republican hold

1920

1920 United States House of Representatives elections^[35]

Party		Candidate	Votes	%
	Republican	Henry Z. Osborne (Incumbent)	97,469	82.7
	Socialist	Upton Sinclair	20,439	17.3
Total votes			117,908	100.0
Turnout
	Republican hold

1922

1922 United States House of Representatives elections^[36]

Party		Candidate	Votes	%
	Republican	Henry Z. Osborne (Incumbent)	98,739	100.0
Turnout			98,739	100
	Republican hold

1923 (Special)

Republican John D. Fredericks won the special election to replace fellow Republican Henry Z. Osborne, who died in office.^[37]

1923 10th congressional district special election^[38]

Party		Candidate	Votes	%
	Republican	John D. Fredericks	28,084	36.16
	Republican	Henry Z. Osborne Jr.	18,103	23.31
	Democratic	Lloy Galphin	13,748	17.70
	Republican	Alfred L. Bartlett	8,857	11.40
	Republican	Frank A. McDonald	5,884	7.58
	Prohibition	John C. Bell	1,875	2.41
	Independent	Upton Sinclair	1,113	1.43
Total votes			77,664	100
Turnout
	Republican hold

1924

1924 United States House of Representatives elections^[39]

Party		Candidate	Votes	%
	Republican	John D. Fredericks (Incumbent)	133,780	62.3
	Democratic	Robert W. Richardson	80,870	37.7
Total votes			214,650	100.0
Turnout
	Republican hold

1926

1926 United States House of Representatives elections^[40]

Party		Candidate	Votes	%
	Republican	Joe Crail (Incumbent)	144,677	86.8
	Socialist	N. Jackson Wright	21,997	13.2
Total votes			166,674	100.0
Turnout
	Republican hold

1928

1928 United States House of Representatives elections^[41]

Party		Candidate	Votes	%
	Republican	Joe Crail (Incumbent)	301,028	93.9
	Democratic	Harry Sherr	19,659	6.1
Total votes			320,687	100.0
Turnout
	Republican hold

1930

1930 United States House of Representatives elections^[42]

Party		Candidate	Votes	%
	Republican	Joe Crail (Incumbent)	162,502	75.0
	Democratic	John F. Dockweiler	54,231	25.0
Total votes			216,733	100
Turnout
	Republican hold

1932

1932 United States House of Representatives elections^[43]

Party		Candidate	Votes	%
	Democratic	Henry E. Stubbs	50,390	55.3
	Republican	Arthur S. Crites	40,794	44.7
Total votes			91,184	100.0
Turnout
	Democratic gain from Republican

1934

1934 United States House of Representatives elections^[44]

Party		Candidate	Votes	%
	Democratic	Henry E. Stubbs (Incumbent)	68,475	64.4
	Republican	George R. Bliss	37,860	35.6
Total votes			106,335	100.0
Turnout
	Democratic hold

1936

1936 United States House of Representatives elections^[45]

Party		Candidate	Votes	%
	Democratic	Henry E. Stubbs (Incumbent)	72,476	69.6
	Republican	George R. Bliss	31,700	30.4
Total votes			104,176	100.0
Turnout
	Democratic hold

1937 (Special)

Democrat Alfred J. Elliott won the special election to replace fellow Democrat Henry E. Stubbs, who died in office.^[46]

1937 10th congressional district special election^[47]

Party		Candidate	Votes	%
	Democratic	Alfred J. Elliott	22,321	48.91
	Republican	Harry A. Hopkins	17,678	38.74
	Progressive	Al Sessions	5,638	12.35
Total votes			45,637	100
Turnout
	Democratic hold

1938

1938 United States House of Representatives elections^[48]

Party		Candidate	Votes	%
	Democratic	Alfred J. Elliott (Incumbent)	84,791	67.3
	Republican	F. Fred Hoelscher	41,194	32.7
Total votes			125,985	100.0
Turnout
	Democratic hold

1940

1940 United States House of Representatives elections^[49]

Party		Candidate	Votes	%
	Democratic	Alfred J. Elliott (Incumbent)	125,845	97.0
	Communist	Louretta Adams	3,826	3.0
Total votes			129,671	100
Turnout
	Democratic hold

1942

1942 United States House of Representatives elections^[50]

Party		Candidate	Votes	%
	Democratic	Alfred J. Elliott (Incumbent)	43,864	100.0
Turnout			43,864	100
	Democratic hold

1944

1944 United States House of Representatives elections^[51]

Party		Candidate	Votes	%
	Democratic	Alfred J. Elliott (Incumbent)	60,001	100.0
Turnout			60,001	100
	Democratic hold

1946

1946 United States House of Representatives elections^[52]

Party		Candidate	Votes	%
	Democratic	Alfred J. Elliott (Incumbent)	51,843	100.0
Turnout				100
	Democratic hold

1948

1948 United States House of Representatives elections^[53]

Party		Candidate	Votes	%
	Republican	Thomas H. Werdel	67,448	71.3
	Progressive	Sam James Miller	27,168	28.7
Total votes			94,616	100.0
Turnout
	Republican gain from Democratic

1950

1950 United States House of Representatives elections^[54]

Party		Candidate	Votes	%
	Republican	Thomas H. Werdel (Incumbent)	59,313	53.6
	Democratic	Harlan Hagen	51,409	46.4
Total votes			110,722	100.0
Turnout
	Republican hold

1952

1952 United States House of Representatives elections^[55]

Party		Candidate	Votes	%
	Republican	Charles S. Gubser	106,375	59.2
	Democratic	Arthur L. Johnson	70,271	39.1
	Progressive	Betsey K. Fisher	2,939	1.7
Total votes			179,585	100.0
Turnout
	Republican hold

1954

1954 United States House of Representatives elections^[56]

Party		Candidate	Votes	%
	Republican	Charles S. Gubser (Incumbent)	94,418	61.2
	Democratic	Paul V. Birmingham	59,843	38.8
Total votes			154,261	100.0
Turnout
	Republican hold

1956

1956 United States House of Representatives elections^[57]

Party		Candidate	Votes	%
	Republican	Charles S. Gubser (Incumbent)	128,891	60.7
	Democratic	William H. Vatcher	83,586	39.3
Total votes			212,477	100.0
Turnout
	Republican hold

1958

1958 United States House of Representatives elections^[58]

Party		Candidate	Votes	%
	Republican	Charles S. Gubser (Incumbent)	118,715	54.6
	Democratic	Russell B. Bryan	98,894	45.4
Total votes			217,609	100.0
Turnout
	Republican hold

1960

1960 United States House of Representatives elections^[59]

Party		Candidate	Votes	%
	Republican	Charles S. Gubser (Incumbent)	170,063	58.9
	Democratic	Russell B. Bryan	118,520	41.1
Total votes			288,583	100.0
Turnout
	Republican hold

1962

1962 United States House of Representatives elections^[60]

Party		Candidate	Votes	%
	Republican	Charles S. Gubser (Incumbent)	106,419	57.4
	Democratic	James P. Thurber Jr.	68,885	42.6
Total votes			175,304	100.0
Turnout
	Republican hold

1964

1964 United States House of Representatives elections^[61]

Party		Candidate	Votes	%
	Republican	Charles S. Gubser (Incumbent)	151,027	63.1
	Democratic	E. Day Carman	88,240	36.9
Total votes			239,267	100.0
Turnout
	Republican hold

1966

1966 United States House of Representatives elections^[62]

Party		Candidate	Votes	%
	Republican	Charles S. Gubser (Incumbent)	156,549	69.1
	Democratic	George Leppert	70,013	30.9
Total votes			226,562	100.0
Turnout
	Republican hold

1968

1968 United States House of Representatives elections^[63]

Party		Candidate	Votes	%
	Republican	Charles S. Gubser (Incumbent)	160,204	67.3
	Democratic	Grayson S. Taketa	73,530	30.9
	Peace and Freedom	Martin L. Primach	4,276	1.8
Total votes			238,010	100.0
Turnout
	Republican hold

1970

1970 United States House of Representatives elections^[64]

Party		Candidate	Votes	%
	Republican	Charles S. Gubser (Incumbent)	135,864	62.0
	Democratic	Stuart. D. McLean	80,530	36.8
	American Independent	Joyce W. Stancliffe	2,651	1.2
Total votes			219,045	100.0
Turnout
	Republican hold

1972

1972 United States House of Representatives elections^[65]

Party		Candidate	Votes	%
	Republican	Charles S. Gubser (Incumbent)	139,850	64.6
	Democratic	B. Frank Gillette	76,597	35.4
Total votes			216,447	100.0
Turnout
	Republican hold

1974

1974 United States House of Representatives elections^[66]

Party		Candidate	Votes	%
	Democratic	Don Edwards (Incumbent)	86,014	77.0
	Republican	Herb Smith	25,678	23.0
Total votes			111,692	100
Turnout
	Democratic gain from Republican

1976

1976 United States House of Representatives elections^[67]

Party		Candidate	Votes	%
	Democratic	Don Edwards (Incumbent)	111,992	72.0
	Republican	Herb Smith	38,088	24.5
	American Independent	Edmon V. Kaiser	5,363	3.5
Total votes			155,443	100.0
Turnout
	Democratic hold

1978

1978 United States House of Representatives elections^[68]

Party		Candidate	Votes	%
	Democratic	Don Edwards (Incumbent)	84,488	67.1
	Republican	Rudy Hansen	41,374	32.9
Total votes			125,862	100.0
Turnout
	Democratic hold

1980

1980 United States House of Representatives elections^[69]

Party		Candidate	Votes	%
	Democratic	Don Edwards (Incumbent)	102,231	62.1
	Republican	Joseph M. Lutton	45,987	27.9
	Libertarian	Joseph Fuhrig	11,904	7.2
	American Independent	Edmon V. Kaiser	4,421	2.7
Total votes			164,543	100.0
Turnout
	Democratic hold

1982

1982 United States House of Representatives elections^[70]

Party		Candidate	Votes	%
	Democratic	Don Edwards (Incumbent)	77,263	62.7
	Republican	Bob Herriott	41,506	33.7
	Libertarian	Dale Burrow	2,403	1.9
	American Independent	Edmon V. Kaiser	2,109	1.7
Total votes			123,281	100.0
Turnout
	Democratic hold

1984

1984 United States House of Representatives elections^[71]

Party		Candidate	Votes	%
	Democratic	Don Edwards (Incumbent)	102,469	62.4
	Republican	Bob Herriott	56,256	34.3
	Libertarian	Perr Cardestam	2,789	1.7
	American Independent	Edmon V. Kaiser	2,663	1.6
Total votes			164,177	100.0
Turnout
	Democratic hold

1986

1986 United States House of Representatives elections^[72]

Party		Candidate	Votes	%
	Democratic	Don Edwards (Incumbent)	84,240	70.5
	Republican	Michael R. La Crone	31,826	26.6
	Libertarian	Perr Cardestam	1,797	1.5
	Peace and Freedom	Bradley L. Mayer	1,701	1.4
Total votes			119,564	100.0
Turnout
	Democratic hold

1988

1988 United States House of Representatives elections^[73]

Party		Candidate	Votes	%
	Democratic	Don Edwards (Incumbent)	142,500	86.2
	Libertarian	Kennita Watson	22,801	13.8
Total votes			165,301	100.0
Turnout
	Democratic hold

1990

1990 United States House of Representatives elections^[74]

Party		Candidate	Votes	%
	Democratic	Don Edwards (Incumbent)	81,875	62.7
	Republican	Mark Patrosso	48,747	37.3
	No party	James (write-in)	15	0.0
Total votes			130,637	100.0
Turnout
	Democratic hold

1992

1992 United States House of Representatives elections^[75]

Party		Candidate	Votes	%
	Republican	Bill Baker	145,702	52.0
	Democratic	Wendell H. Williams	134,635	48.0
	No party	Williams (write-in)	55	0.0
	No party	Janloia (write-in)	37	0.0
Total votes			280,429	100
Turnout
	Republican win (new seat)

1994

1994 United States House of Representatives elections^[76]

Party		Candidate	Votes	%
	Republican	Bill Baker (Incumbent)	138,916	59.30
	Democratic	Ellen Schwartz	90,523	38.65
	Peace and Freedom	Craig W. Cooper	4,802	2.05
Total votes			234,241	100.0
Turnout
	Republican hold

1996

1996 United States House of Representatives elections^[77]

Party		Candidate	Votes	%
	Democratic	Ellen Tauscher	137,726	48.7
	Republican	Bill Baker (Incumbent)	133,633	47.2
	Reform	John Place	6,354	2.3
	Natural Law	Valerie Janlois	3,047	1.0
	Libertarian	Gregory Lyon	2,423	0.8
Total votes			283,183	100.0
Turnout
	Democratic gain from Republican

1998

1998 United States House of Representatives elections^[78]

Party		Candidate	Votes	%
	Democratic	Ellen Tauscher (Incumbent)	127,134	53.46
	Republican	Charles Ball	103,299	43.44
	Natural Law	Valerie Janlois	3,941	1.66
	Reform	John Place	3,435	1.44
Total votes			237,809	100.0
Turnout
	Democratic hold

2000

2000 United States House of Representatives elections^[79]

Party		Candidate	Votes	%
	Democratic	Ellen Tauscher (Incumbent)	160,429	52.7
	Republican	Claude B. Hutchison Jr.	134,863	44.2
	Natural Law	Valerie Janlois	9,527	3.1
Total votes			304,819	100.0
Turnout
	Democratic hold

2002

2002 United States House of Representatives elections^[80]

Party		Candidate	Votes	%
	Democratic	Ellen Tauscher (Incumbent)	123,481	75.6
	Libertarian	Sonia E. Alonso Harden	39,858	24.4
Total votes			163,339	100.0
Turnout
	Democratic hold

2004

2004 United States House of Representatives elections^[81]

Party		Candidate	Votes	%
	Democratic	Ellen Tauscher (Incumbent)	182,750	65.8
	Republican	Jeff Ketelson	95,349	34.2
Total votes			278,099	100.0
Turnout
	Democratic hold

2006

2006 United States House of Representatives elections^[82]

Party		Candidate	Votes	%
	Democratic	Ellen Tauscher (Incumbent)	130,859	66.5
	Republican	Darcy Linn	66,069	33.5
	Republican	Jeff Ketelson (write-in)	50	0.0
Total votes			196,978	100.0
Turnout
	Democratic hold

2008

2008 United States House of Representatives elections^[83]

Party		Candidate	Votes	%
	Democratic	Ellen Tauscher (Incumbent)	192,226	65.2
	Republican	Nicholas Gerber	91,877	31.1
	Peace and Freedom	Eugene E. Ruyle	11,062	3.7
Total votes			295,165	100.0
Turnout
	Democratic hold

2009 (Special)

2009 California's 10th congressional district special election^[84]

Party		Candidate	Votes	%
	Democratic	John Garamendi	72,817	52.85
	Republican	David Harmer	59,017	42.83
	Green	Jeremy Cloward	2,515	1.83
	Peace and Freedom	Mary McIlroy	1,846	1.34
	American Independent	Jerome Denham	1,591	1.15
Total votes			137,786	100.00
Turnout				35.33
	Democratic hold

2010

2010 United States House of Representatives elections^[85]

Party		Candidate	Votes	%
	Democratic	John Garamendi (Incumbent)	137,578	58.9
	Republican	Gary Clift	88,512	37.8
	Green	Jeremy Cloward	7,716	3.3
Total votes			233,806	100.0
Turnout
	Democratic hold

2012

2012 United States House of Representatives elections^[86]

Party		Candidate	Votes	%
	Republican	Jeff Denham	110,265	52.7
	Democratic	José M. Hernández	98,934	47.3
Total votes			209,199	100.0
Turnout
	Republican hold

2014

2014 United States House of Representatives elections^[86]

Party		Candidate	Votes	%
	Republican	Jeff Denham (Incumbent)	70,582	56%
	Democratic	Michael Eggman	55,123	44%
Total votes			125,705	100.0%
Turnout
	Republican hold

2016

2016 United States House of Representatives elections^[87]

Party		Candidate	Votes	%
	Republican	Jeff Denham (Incumbent)	124,671	51.7
	Democratic	Michael Eggman	116,470	48.3
Total votes			241,141	100.0
	Republican hold

2018

Main article: 2018 California's 10th congressional district election

2018 United States House of Representatives elections

Primary election
Party		Candidate	Votes	%
	Republican	Jeff Denham (Incumbent)	45,719	37.5
	Democratic	Josh Harder	20,742	17.0
	Republican	Ted D. Howze	17,723	14.6
	Democratic	Michael Eggman	12,446	10.2
	Democratic	Virginia Madueño	11,178	9.2
	Democratic	Sue Zwahlen	9,945	8.2
	Democratic	Michael J. "Mike" Barkley	2,904	2.4
	Democratic	Dotty Nygard (withdrawn)	1,100	0.9
Total votes			121,757	100.0
General election
	Democratic	Josh Harder	115,945	52.3
	Republican	Jeff Denham (Incumbent)	105,955	47.7
Total votes			221,900	100.0
	Democratic gain from Republican

2020

2020 United States House of Representatives elections

Party		Candidate	Votes	%
	Democratic	Josh Harder (Incumbent)	166,865	55.2
	Republican	Ted Howze	135,629	44.8
Total votes			302,494	100.0
	Democratic hold

See also

• List of United States congressional districts

References

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External links

• GovTrack.us: California's 10th congressional district
• (out of date)
• (out of date)

Coordinates: 37°36′N 121°00′W / 37.6°N 121.0°W / 37.6; -121.0