Political party strength in California

Voter registration by county

Voter registration by congressional district

Voter registration by state senate district

Voter registration by state assembly district

Legend:

•   30–40%
•   40–50%
•   50–60%
•   60–70%
•   30–40%
•   40–50%
•   50–60%

California is a Democratic stronghold and considered to be one of the "Big Three" Democratic strongholds alongside New York and Illinois. Originally a swing state following statehood, California began regularly supporting Republicans for the first half of the 20th century. Republican dominance waned with demographic change, accelerating with increased immigration beginning in the 1980s. The party remained competitive with Democratic candidates until 1992. This changed amidst a struggling economy, when California flipped from Republican to elect Democrat Bill Clinton as President. Republicans still won statewide contests in the state until the late 2000s, with Arnold Schwarzenegger elected governor.

The following table indicates the party of elected officials in California:

• Governor
• Lieutenant Governor
• Attorney General
• Secretary of State
• Treasurer
• Controller
• Insurance Commissioner
• California Superintendent of Public Instruction

The table also indicates the historical party composition in the:

• Board of Equalization
• State Senate
• State Assembly
• State delegation to the U.S. Senate
• State delegation to the U.S. House of Representatives

For years in which a presidential election was held, the table indicates which party's nominees received the state's electoral votes.

Note that ties on the Board of Equalization are broken by the vote of the State Controller.

1849–1990

Year	Executive offices							BOE	State Legislature		United States Congress			Electoral votes
	Governor	Lieutenant Governor	Attorney General	Secretary of State	Treasurer	Controller	Supt. of Pub. Inst.		State Senate	State Assem.	U.S. Senator (Class I)	U.S. Senator (Class III)	U.S. House
1849	Peter Hardeman Burnett (D)	John McDougal (D)	Edward J. C. Kewen (D)	William Van Voohies (D)	Richard Roman (D)	John S. Houston (D)		no such office	16NP	36NP
1850											John C. Frémont (D)	William M. Gwin (D)	1D, 1I
1851	John McDougal (D)	David C. Broderick (D)	James A. McDougall (D)				John Gage Marvin (D)		10D, 4W, 2I	18W, 17D, 1I [a]	vacant
1852	John Bigler (D)	Samuel Purdy (D)	Serranus Clinton Hastings (D)			Winslow S. Pierce (D)			26D, 2W	41D, 21W, 1I	John B. Weller (D)		2D	Pierce/ King (D)Y
1853				James W. Denver (D)					20D, 7W	41D, 22W
1854			John R. McConnell (D)		Selden A. McMeans (D)	Samuel Bell (D)	Paul K. Hubbs (D)		26D, 8W	68D, 12W
1855				Charles R. Hempstead (D)					26D, 7W	42D, 36W, 2I		vacant
1856	J. Neely Johnson (KN)	Robert M. Anderson (KN)	William T. Wallace (KN)	David F. Douglass (KN)	Henry Bates (KN)	George W. Whitman (KN)			16KN, 16D, 1W [b]	56KN, 23D, 1I				Buchanan/ Breckinridge (D)Y
1857					James L. English (KN)	Edward F. Burton (KN)	Andrew J. Moulder (D)		19D, 11KN, 3R	61D, 11R, 8KN	David C. Broderick (D) [c]	William M. Gwin (D)
1858	John B. Weller (D)	Joseph Walkup (D)	Thomas H. Williams (D)	Ferris Foreman (D)	Thomas Findley (D)	Aaron R. Melony (D)			27D, 5R, 3KN	66D, 9R, 4KN, 1I
1859									30D, 4R, 1I	72D, 8R
1860	Milton Latham (D)	John G. Downey (D)		Johnson Price (D)		Samuel H. Brooks (D)			33D, 2R	78D, 2R	Henry P. Haun (D)			Lincoln/ Hamlin (R)Y
	John G. Downey (D)	Isaac N. Quinn (D)									Milton Latham (D)
1861		Pablo de la Guerra (D)				James S. Gillan (D)			30D, 6R	60D, 19R, 1CU		James A. McDougall (D)	3R
1862	Leland Stanford (R)	John F. Chellis (R)	Frank M. Pixley (R)	William H. Weeks (R)	Delos R. Ashley (R)	Gilbert R. Warren (R)			23D, 17R	41D, 39R
1863			John L. McCullogh (R)	Benjamin B. Redding (R)	Romualdo Pacheco (NU)	George R. Oultan (R)	John Swett (NU)		31R, 9D	63R, 17D	John Conness (R)
1864	Frederick Low (R)	Tim N. Machin (R)							35R, 5D	70R, 10D				Lincoln/ Johnson (NU)Y
1865
1866									31R, 9D	61R, 19D
1867			Jo Hamilton (D)	Henry L. Nichols (D)	Antonio F. Coronel (D)	Robert Watt (D)	Oscar Penn Fitzgerald (D)					Cornelius Cole (R)	2D, 1R
1868	Henry Huntly Haight (D)	William Holden (D)							21R, 19D	52D, 28R				Grant/ Colfax (R)Y
1869											Eugene Casserly (D)
1870									26D, 12R, 2I	67D, 10R, 3I
1871			John Lord Love (R)	Drury Melone (R)	Ferdinand Baehr (R)	James J. Green (R)	Henry Nicholas Bolander (R)						3R
1872	Newton Booth (R)	Romualdo Pacheco (R)							22D, 17R, 1I	54R, 25D, 1I				Grant/ Wilson (R)Y
1873												Aaron A. Sargent (R)	3R, 1D
1874									18R, 14D, 8PI [d]	34PI, 27R, 19D [e]	John S. Hager (D)
1875	Romualdo Pacheco (R)	William Irwin (D)	Jo Hamilton (D)	Thomas Bock (D)	José Guadalupe Estudillo (D)	James W. Mandeville (D)	Ezra S. Carr (R)				Newton Booth (AM)		3D, 1R
1876	William Irwin (D)	James A. Johnson (D)				William B. C. Brown (D)			20D, 11I, 6R, 3ID	64D, 12R, 4I				Hayes/ Wheeler (R)Y
1877						Daniel M. Kenfield (R)							3R, 1D
1878									27D, 10R, 2I, 1WPC	55D, 24R, 1WPC			2D, 2R
1879								3R, 1D				James T. Farley (D)	3R, 1D
1880	George C. Perkins (R)	John Mansfield (R)	Augustus L. Hart (R)	Daniel M. Burns (R)	John Weil (R)		Frederick M. Campbell (R)		23R, 10WPC, 7D	46R, 18D, 16WPC				Hancock/ English (D)N
1881										42R, 33D, 4WPC, 1GB	John Franklin Miller (R) [c]		2D, 2R
1882
1883	George Stoneman (D)	John Daggett (D)	Edward C. Marshall (D)	Thomas Larkin Thompson (D)	William A. January (D)	John P. Dunn (D)	William T. Weckler (D)	3D, 1R	32D, 8R	61D, 19R			6D
1884					Denis J. Oullahan (D)									Blaine/ Logan (R)N
1885									20D, 20R [f]	60R, 20D		Leland Stanford (R)	5R, 1D
1886											George Hearst (D) [g]
											Abram Williams (R)
1887	Washington Bartlett (D) [c]	Robert Waterman (R)	George A. Johnson (D)	William C. Hendricks (D)	Adam Herald (D)		Ira G. Haitt (R)		22D, 18R	41R, 39D	George Hearst (D) [c]		4R, 2D
1888	Robert Waterman (R)	Stephen M. White (D)												Harrison/ Morton (R)Y
1889									22D, 18R	42D, 38R
1890
1891	Henry Markham (R)	John B. Reddick (R)	William H. Hart (R)	Edwin G. Waite (R)	J.R. McDonald (R)	Edward P. Colgan (R)	J. W. Anderson (R)	3R, 1D	28R, 12D	60R 19D, 1KN	Charles N. Felton (R)
1892														8 - Cleveland/ Stevenson (D)Y 1 - Harrison/ Reid (R)N
1893									22R, 18D	45D, 31R, 2I, 2Pop	Stephen M. White (D)
1894				Albert Hart (R)								George C. Perkins (R)
1895	James Budd (D)	Spencer G. Millard (R) [c]	William F. Fitzgerald (R)	Lewis H. Brown (R)	Levi Ratcliffe (R)		Samuel T. Black (R)		25R, 15D	64R, 14D, 2Pop
1896		William T. Jeter (D) [g]												McKinley/ Roosevelt (R)Y
1897									28R, 12D	47R, 16Fus, 9Pop, 8D			3R, 2D, 2Pop
1898					Will S. Green (D)		Charles T. Meredith (D)
1899	Henry T. Gage (R)	Jacob H. Neff (R)	Tirey L. Ford (R)	Charles F. Curry (R)	Truman Reeves (R)		Thomas J. Kirk (R)	2R, 2D [h]	26R, 14D	59R, 20D, 2I	vacant		6R, 1D
1900											Thomas R. Bard (R)		7R	McKinley/ Roosevelt (R)Y
1901									34R, 6D	60R, 20D
1902
1903	George Pardee (R)	Alden Anderson (R)	Ulysses S. Webb (R)						33R, 7D	60R, 19D, 1UL			5R, 3D
1904														Roosevelt/ Fairbanks (R)Y
1905									33R, 4UL, 3D	72R, 4D, 4UL	Frank Flint (R)		8R
1906						A. B. Nye (R)
1907	James Gillett (R)	Warren R. Porter (R)			William R. Williams (R)		Edward Hyatt (R)	4R	33R, 6D, 1I	73R, 6D, 1I
1908														Taft/ Sherman (R)Y
1909									30R, 9D, 1I	60R, 20D
1910
1911	Hiram Johnson (R)	Albert Joseph Wallace (R)		Frank C. Jordan (R) [c]	Edward D. Roberts (R)				32R, 18D	69R, 11D	John D. Works (R)		7R, 1D
1912	Hiram Johnson (Prog)													Roosevelt/ Johnson (Prog)N
1913						John S. Chambers (R)			30R, 10D	54R, 25D, 1Soc			7R, 3D, 1I
1914
1915		John Morton Eshleman (Prog) [c]			Friend Richardson (Prog)			3R, 1D	21R, 10D, 9Prog	33R, 28Prog, 15D, 3Soc, 1Proh [i]		James D. Phelan (D)	4R, 3D, 2Prog, 1I, 1Proh
1916		William Stephens (R)											5R, 3D, 1Prog, 1I, 1Proh	Wilson/ Marshall (D)Y
1917	William Stephens (R)	C. C. Young (R)							20R, 11D, 8P, 1I	69R, 9D, 1Prog, 1Proh	Hiram Johnson (R) [c]		5R, 4D, 1Prog, 1Proh
1918
1919							Will C. Wood (NP)		32R, 7D, 1I	70R, 10D			9R, 2D
1920														Harding/ Coolidge (R)Y
1921						Roy C. Riley (R)			33R, 7D	73R, 7D		Samuel M. Shortridge (R)
1922
1923	Friend Richardson (R)				Charles G. Johnson (R)				36R, 3D, 1I	76R, 4D
1924														Coolidge/ Dawes (R)Y
1925									37R, 3D	75R, 5D
1926
1927	C. C. Young (R)	Buron Fitts (R)					William John Cooper (NP/R)	4R	35R, 5D	74R, 6D			10R, 1D
1928														Hoover/ Curtis (R)Y
1929		Herschel L. Carnahan (R)					Vierling C. Kersey (NP)			71R, 7D, 2I
1930
1931	James Rolph (R) [c]	Frank Merriam (R)							36R, 4D	73R, 7D
1932														Roosevelt/ Garner (D)Y
1933									35R, 5D	55R, 25D		William Gibbs McAdoo (D) [j]	11D, 9R
1934	Frank Merriam (R)	vacant
1935		George J. Hatfield (R)							31R, 8D, 1I	42R, 37D, 1I			13D, 7R
1936
1937						Harry B. Riley (R)	Walter F. Dexter (NP/R)		25R, 15D	47D, 33R			15D, 4R, 1Prog
1938
1939	Culbert Olson (D)	Ellis E. Patterson (D)	Earl Warren (R)					3R, 1D	21R, 19D	44D, 36R		Sheridan Downey (D)	11D, 8R, 1Prog
1940				Paul Peek (D)										Roosevelt/ Wallace (D)Y
1941									24R, 16D	42D, 38R			10D, 10R
1942
1943	Earl Warren (R)	Frederick F. Houser (R)	Robert W. Kenny (D)	Frank M. Jordan (R)						44R, 36D			13D, 10R
1944														Roosevelt/ Truman (D)Y
1945							Roy E. Simpson (NP)		24R, 20D	42R, 37D, 1I			16D, 7R
1946											William Knowland (R) [g]
1947		Goodwin Knight (R)	Frederick N. Howser (R)			Thomas Kuchel (R)				48R, 32D			14R, 9D
1948														Truman/ Barkley (D)Y
1949									26R, 14D	45R, 35D			12R, 11D
1950
1951			Pat Brown (D)						28R, 12D	47R, 33D		Richard Nixon (R)
1952														Eisenhower/ Nixon (R)Y
1953						Robert C. Kirkwood (R) [g]			29R, 11D	53R, 27D		Thomas Kuchel (R) [g]	19R, 11D
1954	Goodwin Knight (R)	Harold J. Powers (R)						2R, 2D [h]
1955									22R, 18D	47R, 23D
1956
1957					A. Ronald Burton (R)				20D, 20R [k]	42R, 38D			17R, 13D
1958
1959	Pat Brown (D)	Glenn M. Anderson (D)	Stanley Mosk (D)		Bert A. Betts (D)	Alan Cranston (D)		4D	26D, 14R	47D, 33R	Clair Engle (D) [c]		16D, 14R
1960														Nixon/ Lodge (R)N
1961									30D, 10R				24D, 14R
1962
1963							Max Rafferty (NP/R)		27D, 13R	52D, 28R			23D, 15R
1964														Johnson/ Humphrey (D)Y
			Thomas C. Lynch (D) [g]								Pierre Salinger (D) [g]
1965										49D, 31R	George Murphy (R)
1966
1967	Ronald Reagan (R)	Robert Finch (R)			Ivy Baker Priest (R)	Houston Flournoy (R)			21D, 19R [l]	42D, 38R			21D, 17R
1968									20D, 20R					Nixon/ Agnew (R)Y
1969		Edwin Reinecke (R)							21R, 19D	41R, 39D		Alan Cranston (D)
1970				H. P. Sullivan (R)
1971			Evelle J. Younger (R)	Jerry Brown (D)			Wilson Riles (NP/D)		21D, 19R	43D, 37R	John V. Tunney (D)		20D, 18R
1972
1973									20D, 20R [m]	51D, 29R			23D, 20R
1974		John L. Harmer (R)
1975	Jerry Brown (D)	Mervyn Dymally (D)		March Fong Eu (D)	Jesse M. Unruh (D) [c]	Kenneth Cory (D)			25D, 15R	55D, 25R			28D, 15R
1976														Ford/ Dole (R)N
1977									28D, 12R	57D, 23R	S. I. Hayakawa (R)		29D, 14R
1978
1979		Mike Curb (R)	George Deukmejian (R)					3D, 1R	26D, 14R	50D, 30R			28D, 15R
1980														Reagan/ Bush (R)Y
1981										47D, 33R			22D, 21R
1982
1983	George Deukmejian (R)	Leo T. McCarthy (D)	John Van de Kamp (D)				Bill Honig (NP)		25D, 15R	48D, 32R	Pete Wilson (R) [n]		28D, 17R
1984
1985										47D, 33R
1986
1987						Gray Davis (D)		2D, 2R [o]	24D, 14R, 1I	44D, 36R
1988					Elizabeth Whitney (D) [p]		Bill Honig (NP/D)							Bush/ Quayle (R)Y
1989					Thomas W. Hayes (R) [g]					47D, 33R
1990

1991–present

Year	Executive offices								BOE	State Legislature		United States Congress			Electoral votes
	Governor	Lieutenant Governor	Attorney General	Secretary of State	Treasurer	Controller	Insurance Comm.	Supt. of Pub. Inst.		State Senate	State Assem.	U.S. Senator (Class I)	U.S. Senator (Class III)	U.S. House
1991	Pete Wilson (R)	Leo T. McCarthy (D)	Dan Lungren (R)	March Fong Eu (D)	Kathleen Brown (D)	Gray Davis (D)	John Garamendi (D)	Bill Honig (NP/D)	2D, 2R [o]	25D, 14R, 1I	46D, 34R	John Seymour (R) [g]	Alan Cranston (D)	26D, 19R
1992															Clinton/ Gore (D)Y
1993								David Dawson (NP) [p]		23D, 15R, 2I	48D, 32R	Dianne Feinstein (D) [c]	Barbara Boxer (D)	30D, 22R
1994				Tony Miller (D) [p]
1995		Gray Davis (D)		Bill Jones (R)	Matt Fong (R)	Kathleen Connell (D)	Chuck Quackenbush (R)	Delaine Eastin (NP/D)		21D, 17R, 2I	41R, 39D [q]			27D, 25R
1996														26D, 26R
1997										23D, 16R, 1I	43D, 37R			29D, 23R
1998
1999	Gray Davis (D) [r]	Cruz Bustamante (D)	Bill Lockyer (D)		Phil Angelides (D)					25D, 15R	47D, 32R, 1G			28D, 24R
2000							J. Clark Kelso (R) [p]							27D, 25R	Gore/ Lieberman (D)N
2001							Harry W. Low (D) [g]			26D, 14R	50D, 30R			32D, 20R
2002
2003				Kevin Shelley (D) [s]		Steve Westly (D)	John Garamendi (D)	Jack O'Connell (NP/D)		25D, 15R	48D, 32R			33D, 20R
2004	Arnold Schwarzenegger (R)														Kerry/ Edwards (D)N
2005				Bruce McPherson (R) [g]
2006
2007		John Garamendi (D)	Jerry Brown (D)	Debra Bowen (D)	Bill Lockyer (D)	John Chiang (D)	Steve Poizner (R)							34D, 19R
2008															Obama/ Biden (D)Y
2009											50D, 29R, 1I
2010		Abel Maldonado (R) [g]
2011	Jerry Brown (D)	Gavin Newsom (D)	Kamala Harris (D)				Dave Jones (D)	Tom Torlakson (NP/D)			52D, 28R
2012											52D, 27R, 1I
2013										29D, 11R	55D, 25R
2014										28D, 12R [t]
2015				Alex Padilla (D)	John Chiang (D)	Betty Yee (D)				26D, 14R	52D, 28R			38D, 15R
2016															Clinton/ Kaine (D)N
2017			Xavier Becerra (D) [g]							27D, 13R	55D, 25R		Kamala Harris (D) [u]	39D, 14R
2018										26D, 14R [v]
2019	Gavin Newsom (D)	Eleni Kounalakis (D)			Fiona Ma (D)		Ricardo Lara (D)	Tony Thurmond (NP/D)	3D, 1R	29D, 11R	60D, 20R			46D, 7R
											61D, 19R [w]
											61D, 18R, 1I [x]
2020														45D, 7R [y]	Biden/ Harris (D)Y
2021			Rob Bonta (D) [g]	Shirley Weber (D) [g]						31D, 9R	60D, 19R, 1I		Alex Padilla (D) [g]	42D, 11R
2022
2023						Malia Cohen (D)				32D, 8R	62D, 18R	Laphonza Butler (D) [g]		40D, 12R
2024															Harris/ Walz (D)N
										31D, 9R [z]
2025										30D, 10R	60D, 20R	Adam Schiff (D)		43D, 9R
2026

Key to party colors and abbreviations for members of the U.S. Congress and other politicians or officials

Alaskan Independence (AKIP) Know Nothing (KN) American Labor (AL) Anti-Jacksonian (Anti-J) National Republican (NR) Anti-Administration (AA) Anti-Masonic (Anti-M) Conservative (Con) Covenant (Cov)

Democratic (D) Democratic–Farmer–Labor (DFL) Democratic–NPL (D-NPL) Dixiecrat (Dix), States' Rights (SR) Democratic-Republican (DR) Farmer–Labor (FL) Federalist (F) Pro-Administration (PA)

Free Soil (FS) Fusion (Fus) Greenback (GB) Independence (IPM) Jacksonian (J) Liberal (Lib) Libertarian (L) National Union (NU)

Nonpartisan League (NPL) Nullifier (N) Opposition Northern (O) Opposition Southern (O) Populist (Pop) Progressive (Prog) Prohibition (Proh) Readjuster (Rea)

Republican (R) Silver (Sv) Silver Republican (SvR) Socialist (Soc) Union (U) Unconditional Union (UU) Vermont Progressive (VP) Whig (W)

Independent (I) Nonpartisan (NP)

1. A Democrat, John Bigler, was re-elected Speaker, continuing in his service from when it was a non-partisan body.
2. The Whig voted with the Know-Nothings to elect a Know-Nothing President Pro Tempore, Delos R. Ashley.
3. Died in office.
4. A Democrat, William Irwin, was elected President Pro Tempore with the support of the People's Independent Party.
5. A representative of the People's Independent Party, Morris M. Estee, was elected Speaker with the support of the Democrats.
6. The senate elected a Democratic President Pro Tempore.
7. Appointed to fill vacancy.
8. Republicans held the State Controller's office for the duration of this tie and cast the tie-breaking vote here, giving control of the Board to the Republicans.
9. A Progressive Speaker was elected with Democratic support.
10. Resigned November 8, 1938. Thomas M. Storke (D) was appointed to replace McAdoo on November 9, but as Congress was not in session Storke never took any legislative action or cast any votes during his time as Senator.
11. A Democrat, Hugh M. Burns was elected Senate President Pro Tempore.
12. A Democrat, J. Eugene McAteer died in office in May 1967 and was succeeded by a Republican Milton Marks in August 1967 shifting the Senate to 20D, 20R.
13. Democrat James Mills continued as Senate President Pro Tempore.
14. Resigned to take office as Governor of California.
15. Democratic State Controllers held office for the entire duration of this tie, giving Democrats control of the Board.
16. Deputy officer who served in an acting capacity during a vacancy.
17. Democrat Willie Brown continued as Speaker for the first half of 1995 with the support of a Republican-turned-Independent, Paul Horcher, and two Republicans. Those two Republicans, Doris Allen and Brian Setencich, each served as Speaker for three months the second half of 1995. Republican Curt Pringle was then selected as Speaker in 1996 after the Independent and two Republicans were recalled and/or removed from office.
18. Recalled in 2003.
19. Resigned March 4, 2005. Deputy Insurance Commissioner Cathy Mitchell served in an acting capacity from March 4 until March 29.
20. Republican Andy Vidak won a special election to fill the seat of Democrat Michael Rubio
21. Resigned to take office as Vice President of the United States.
22. Democratic Senator Josh Newman was recalled and replaced by Republican Ling Ling Chang.
23. Republican Assemblyman Brian Maienschein switched to the Democratic Party.
24. Republican Assemblyman Chad Mayes left the Republican party and registered as an independent.
25. Democrat Katie Hill resigned and was succeeded by Republican Mike Garcia. Republican Duncan D. Hunter resigned and his seat remained vacant until the next election.
26. Democratic state senator Marie Alvarado-Gil switched to the Republican Party.

Party strength by number of registrations

• 
  1999 California Voter Registration by County
• 
  2001 California Voter Registration by County
• 
  2003 California Voter Registration by County
• 
  2005 California Voter Registration by County
• 
  2007 California Voter Registration by County
• 
  2009 California Voter Registration by County
• 
  2011 California Voter Registration by County
• 
  2013 California Voter Registration by County
• 
  2015 California Voter Registration by County
• 
  2017 California Voter Registration by County
• 
  2019 California Voter Registration by County
• 
  2021 California Voter Registration by County
• 
  2023 California Voter Registration by County
• 
  2024 California Voter Registration by County
• 
  2025 California Voter Registration by County

Graphical summary

Political party registration over time

Year	Total	Democratic	Republican	NPA	American Ind.	Green	Libertarian	Natural Law	Reform	Peace & Freedom	Americans Elect
1999 [1] [2]	14,853,121	46.72%	35.27%	12.89%	1.97%	0.66%	0.55%	0.43%	0.58%	0.48%
2001 [3] [4]	15,577,686	45.57%	34.76%	14.43%	2.04%	0.91%	0.60%	0.35%	0.48%	0.41%
2003 [5] [6]	15,168,263	44.39%	35.22%	15.32%	1.95%	1.03%	0.59%	0.28%		0.52%
2005 [7] [8]	16,628,673	43.04%	34.49%	17.88%	1.99%	0.95%	0.54%	0.17%	0.23%	0.40%
2007 [9] [10]	15,682,358	42.52%	34.19%	18.83%	2.00%	0.89%	0.53%		0.22%	0.37%
2009 [11] [12]	17,334,275	44.52%	31.14%	19.99%	2.17%	0.67%	0.48%		0.16%	0.32%
2011 [13] [14]	17,186,531	44.04%	30.88%	20.41%	2.43%	0.66%	0.54%		0.13%	0.34%
2013 [15] [16]	18,055,783	43.93%	28.94%	20.86%	2.64%	0.63%	0.61%		0.09%	0.34%	0.02%
2015 [17] [18]	17,717,936	43.15%	27.98%	23.57%	2.71%	0.62%	0.69%			0.44%
2017 [19] [20]	19,432,609	44.77%	25.87%	24.51%	2.63%	0.49%	0.73%			0.39%
2019 [21] [22]	19,978,449	43.11%	23.57%	28.26%	2.59%	0.44%	0.77%			0.38%
2021 [23] [24]	22,154,304	46.17%	24.14%	23.73%	3.07%	0.39%	0.92%			0.48%
2023 [25]	21,980,768	46.89%	23.83%	22.48%	3.61%	0.44%	1.07%			0.57%
2025 [26]	22,900,896	45.27%	25.22%	22.34%	3.91%	0.48%	1.02%			0.62%

See also

• Government and politics in California
• California locations by voter registration
• Politics of California
  • Politics of California before 1900
• Elections in California
• Government of California

References

1. "Report of Registration – February 10, 1999" (PDF). California Secretary of State. Retrieved 23 November 2021.
2. "Registration by Political Bodies Attempting to Qualify – February 10, 1999" (PDF). California Secretary of State. Retrieved 23 November 2021.
3. "Report of Registration – February 10, 2001" (PDF). California Secretary of State. Retrieved 23 November 2021.
4. "Registration by Political Bodies Attempting to Qualify – February 10, 2001" (PDF). California Secretary of State. Retrieved 23 November 2021.
5. "Report of Registration – February 10, 2003" (PDF). California Secretary of State. Retrieved 23 November 2021.
6. "Registration by Political Bodies Attempting to Qualify – February 10, 2003" (PDF). California Secretary of State. Retrieved 23 November 2021.
7. "Report of Registration – February 10, 2005" (PDF). California Secretary of State. Retrieved 23 November 2021.
8. "Registration by Political Bodies Attempting to Qualify – February 10, 2005" (PDF). California Secretary of State. Retrieved 23 November 2021.
9. "Report of Registration – February 10, 2007" (PDF). California Secretary of State. Retrieved 23 November 2021.
10. "Registration by Political Bodies Attempting to Qualify – February 10, 2007" (PDF). California Secretary of State. Retrieved 23 November 2021.
11. "Report of Registration – February 10, 2009" (PDF). California Secretary of State. Retrieved 23 November 2021.
12. "Registration by Political Bodies Attempting to Qualify – February 10, 2009" (PDF). California Secretary of State. Retrieved 23 November 2021.
13. "Report of Registration – February 10, 2011" (PDF). California Secretary of State. Retrieved 23 November 2021.
14. "Registration by Political Bodies Attempting to Qualify – February 10, 2011" (PDF). California Secretary of State. Retrieved 23 November 2021.
15. "Report of Registration – February 10, 2013" (PDF). California Secretary of State. Retrieved 23 November 2021.
16. "Registration by Political Bodies Attempting to Qualify – February 10, 2013" (PDF). California Secretary of State. Retrieved 23 November 2021.
17. "Report of Registration – February 10, 2015" (PDF). California Secretary of State. Retrieved 23 November 2021.
18. "Registration by Political Bodies Attempting to Qualify – February 10, 2015" (PDF). California Secretary of State. Retrieved 23 November 2021.
19. "Report of Registration – February 10, 2017" (PDF). California Secretary of State. Retrieved 23 November 2021.
20. "Registration by Political Bodies Attempting to Qualify – February 10, 2017" (PDF). California Secretary of State. Retrieved 23 November 2021.
21. "Report of Registration – February 10, 2019" (PDF). California Secretary of State. Retrieved 23 November 2021.
22. "Registration by Political Bodies Attempting to Qualify – February 10, 2019" (PDF). California Secretary of State. Retrieved 23 November 2021.
23. "Report of Registration – February 10, 2021" (PDF). California Secretary of State. Retrieved 23 November 2021.
24. "Registration by Political Bodies Attempting to Qualify – February 10, 2021" (PDF). California Secretary of State. Retrieved 23 November 2021.
25. "Report of Registration – February 10, 2023" (PDF). California Secretary of State. Retrieved 28 June 2023.
26. "Report of Registration – February 10, 2025" (PDF). California Secretary of State. Retrieved 6 July 2025.