# List of political parties in the United States

This list of political parties in the United States, both past and present, does not include independents.
Not all states allow the public to access voter registration data. Therefore, voter registration data should not be taken as the correct value and should be viewed as an underestimate.
The abbreviations given come from state ballots used in the most recent elections. Not all political parties have abbreviations.

## Active parties
### Major parties

| Party | Party | Year founded | Political position | Ideology | Ballot access | Presidential ballot access (2024) | Membership (2024) | Presidential vote (2024) | Presidential vote (2024) | Legislators (federal and state) | Legislators (federal and state) | Legislators (federal and state) |
| Party | Party | Year founded | Political position | Ideology | Ballot access | Presidential ballot access (2024) | Membership (2024) | Electoral | Popular | Senators | Representatives | State legislators |
| | Republican Party (R) | 1854 | Right-wing | Right-wing populism Conservatism | 50 / 50 + DC | 50 / 50 + DC | 37,314,494 | 312 / 538 | 77,234,090 (49.9%) | 53 / 100 | 220 / 435 | 4,031 / 7,383 |
| | Democratic Party (D) | 1828 | Center-left | Liberalism | 50 / 50 + DC | 50 / 50 + DC | 45,512,696 | 226 / 538 | 74,936,918 (48.5%) | 47 / 100 | 215 / 435 | 3,271 / 7,383 |

### Third parties
#### Represented in state legislatures

The following third parties have members in state legislatures affiliated with them.

##### Ballot access in multiple states

| Party | Party | Year founded | Political position | Ideology | Ballot access | Presidential ballot access (2024) | Membership (2024) | Presidential vote (2024) | State legislators |
| | Forward Party | 2022 | Center | PopulismReformismDecentralization | 4 / 51 | No candidate | 1483 | No candidate | 3 / 7,383 |

##### Ballot access in a single state

| Party | Party | Year founded | Political position | Ideology | Ballot access | Membership (2024) | Presidential vote (2024) | State legislators |
| | Vermont Progressive Party | 1993 | Left-wing | Progressivism Democratic socialism | Vermont | Unknown | No candidate | 5 / 180 |

#### Other parties with ballot access

The following third parties have ballot access in at least one state and are not represented in a national office or state legislature.

##### Multi-state

| Party | Year founded | Political position | Ideology | Ballot access | Presidential ballot access (2024) | Membership (2024) | Presidential vote (2024) |
| Libertarian Party (LIB) | 1971 | | Libertarianism | 39 / 51 | 47 / 51 | 722,761 | 646,123 (0.418%) |
| Green Party (GRE) | 2001 | Left-wing | Green politics Eco-socialism | 21 / 51 | 37 / 51 | 246,994 | 813,066 (0.526%) |
| No Labels | 2010 | Center | Centrism | 14 / 51 | No candidate | 150,104 | No candidate |
| Constitution Party (CON) | 1992 | Far-right | Paleoconservatism Christian nationalism | 13 / 51 | 12 / 51 | 150,949 | 54,053 (0.035%) |
| Working Families Party (WF) | 1998 | Left-wing | Social democracy Progressivism | 3 / 51 | No candidate | 59,109 | No candidate |
| Party for Socialism and Liberation (PSL) | 2004 | Far-left | Marxism–Leninism | 3 / 51 | 19 / 51 | 2,582 | 154,538 (0.100%) |
| Alliance Party | 2019 | Center | Centrism | 2 / 51 | 31 / 51 + DC | Unknown | 754,980 (0.49%) |
| Natural Law Party (NLP) | 1992 | | Transcendental Meditation | 2 / 51 | 31 / 51 + DC | 6,319 | 754,980 (0.49%) |
| American Solidarity Party (ASP) | 2011 | Syncretic Fiscal: Center-left Social: Center-right | Christian democracy | 2 / 51 | 7 / 51 | 2,070 | 32,654 (0.021%) |

##### Single-state

| Party | Year founded | Political position | Ideology | Membership | Presidential vote (2024) | Ballot access |
| American Independent Party | 1967 | Far-right | Paleoconservatism | 861,468 | 754,980 (0.49%) | California |
| Liberal Party | 2022 | Center | Classical liberalism | 15,940 | 859 (0.0006%) | New Mexico |
| Working Class Party | 2016 | Left-wing | Socialism Progressivism | Unknown | No candidate | Michigan |
| Independent Party of Oregon | 2007 | Center | Centrism | 146,899 | No candidate | Oregon |
| Peace and Freedom Party | 1967 | Left-wing | Socialism | 142,311 | 154,538 (0.10%) | California |
| Approval Voting Party | 2016 | | Electoral reform | 4,846 | 2,196 (0.001%) | Colorado |
| Colorado Center Party | 2022 | Center | Centrism | 2,375 | | Colorado |
| Conservative Party of New York State | 1962 | Right-wing | Conservatism | 154,128 | | New York |
| Independent Party of Louisiana | 2016 | Center | Centrism | 147,941 | | Louisiana |
| United Kansas | 2024 | Center | Centrism | 131 | | Kansas |
| Oregon Progressive Party | 2007 | Left-wing | Progressivism | 3,818 | | Oregon |
| Green Mountain Peace and Justice Party | 1970 | Left-wing | Democratic socialism | Unknown | | Vermont |
| Alaskan Independence Party | 1978 | Center-right to right-wing | Alaskan nationalism | 19,080 | | Alaska |
| Independent Party of Delaware | 2000 | Center-right | Fiscal conservatism Laissez-faire Environmentalism | 11,280 | | Delaware |
| United Utah Party | 2017 | Center | Centrism | 2,435 | | Utah |
| Independent American Party | 1993 | Far-right | Ultraconservatism | 91,822 | | Utah |
| Ecology Party of Florida | 2008 | | Environmentalism | 3,264 | | Florida |
| Independent Party of Florida | 1993 | Centrism | | 276,467 | | Florida |
| Aloha ʻĀina Party | 2015 | | Hawaiian sovereignty | Unknown | | Hawaii |
| United Citizens Party | 1969 | Center-left to left-wing | Progressivism Black nationalism | Unknown | | South Carolina |
| Legal Marijuana Now Party | 1998 | | Marijuana legalization | 8,151 | | Nebraska |
| Reform Party | 1995 | Center | Radical centrism | 2,879 | 754,980 (0.49%) | Florida |
| Unity Party | 2004 | Center | Centrism | 3,159 | | Colorado |
| South Carolina Workers Party | 2023 | Left-wing | Laborism | Unknown | | South Carolina |

#### Active parties without ballot access

The following parties have been active in the past 4 years, but as of December 2021, did not have official ballot access in any state.

##### Multi-state

| Party | Year founded | Political position | Ideology | Membership | Presidential vote (2024) |
| Socialist Workers Party | 1938 | Far-left | Communism Fidelismo | 789 | 4,118 (0.003%) |
| Prohibition Party | 1869 | Syncretic Social: Center-right Fiscal: Center-left | Temperance Christian democracy Social conservatism | 19 | 1,144 (0.0007%) |
| Socialist Equality Party | 1966 | Far-left | Trotskyism Communism Revolutionary socialism | Unknown | 4,638 (0.003%) |
| Socialist Party USA | 1973 | Left-wing | Socialism Anti-capitalism Eco-socialism Socialist feminism | 9,504 | 361 (0.0002%) |
| United States Pirate Party | 2006 | Syncretic | Pirate politics Civil libertarianism Direct democracy | Unknown | 914 (0.0006%) |
| Communist Party USA | 1919 | Far-left | Communism Marxism–Leninism Bill of Rights socialism | Unknown | |
| Progressive Labor Party | 1962 | Far-left | Anti-revisionism Stalinism | Unknown | |
| Socialist Alternative | 1986 | Far-left | Marxism Revolutionary socialism Trotskyism | Unknown | |
| Workers World Party | 1959 | Far-left | Communism Marxism–Leninism Anti-Imperialism | Unknown | |
| Freedom Socialist Party | 1966 | Far-left | Trotskyism Revolutionary socialism Socialist feminism | Unknown | |
| American Freedom Party | 2009 | Far-right | American nationalism Paleoconservatism Right-wing populism White nationalism Anti-immigration | Unknown | |
| Socialist Action | 1983 | Far-left | Trotskyism | Unknown | |
| Transhumanist Party | 2014 | | Libertarian transhumanism Extropianism Technogaianism | Unknown | |

##### Single-state

| Party | Year founded | Political position | Ideology | Membership (2024) | Presidential vote (2024) | Year lost access | Seeking access | Ballot access |
| Common Sense Party of California | 2019 | Center | Centrism | 19,198 | | Never had | | California |
| Green Party of Alaska | 1990 | Left-wing | Green politics | 1,522 | 3,284 (0.002%) | | As of May 2022 | Alaska |
| California National Party | 2015 | Center-left | Californian nationalism Social democracy | Unknown | | | | California |
| California Freedom Coalition | 2017 | Big tent | Californian secessionism | | Unknown | | | California |
| Grassroots–Legalize Cannabis Party | 2014 | Left-wing | Marijuana legalization | Unknown | | 2022 | | Minnesota |
| Liberal Party of New York | 1944 | Center-left | Liberalism | Unknown | | 2002 | | New York |
| Moderate Party of Rhode Island | 2007 | Center | Centrism | Unknown | | 2018 | | Rhode Island |
| Green Party of Rhode Island | 1992 | Left-wing | Green politics | Unknown | | | | Rhode Island |
| Independent Greens of Virginia | 2005 | Center-right | Green conservatism | Unknown | | | | Virginia |
| Washington Progressive Party | 2002 | Left-wing | Progressivism | Unknown | | | | Washington |
| Progressive Dane | 1992 | Left-wing | Progressivism | Unknown | | | | Wisconsin |
| Moderate Party | 2022 | Center | Centrism | Unknown | | Never had | As of June 2022 | New Jersey |

### Major parties in Puerto Rico

The following parties are represented in the Puerto Rican Legislature.
| Party | Year founded | Political position | Ideology | President | Gubernatorial vote | Senators | Representatives | Mayors |
| New Progressive Party Partido Nuevo Progresista | 1967 | Center to center-right | Puerto Rico statehood | Pedro Pierluisi | 427,016 (33.24%) | 10 / 27 | 21 / 51 | 36 / 78 |
| Popular Democratic Party Partido Popular Democrático | 1938 | Center | Pro-Commonwealth Centrism | Jesús Manuel Ortiz | 407,817 (31.75%) | 12 / 27 | 26 / 51 | 41 / 78 |
| Citizens' Victory Movement Movimiento Victoria Ciudadana | 2019 | Left-wing | Anti-imperialism Anti-neoliberalism Progressivism | Ana Irma Rivera Lassén | 179,265 (13.95%) | 2 / 27 | 2 / 51 | 0 / 78 |
| Puerto Rican Independence Party Partido Independentista Puertorriqueño | 1946 | Center-left | Puerto Rico independence Social democracy | Rubén Berríos | 175,402 (13.58%) | 1 / 27 | 1 / 51 | 0 / 78 |
| Project Dignity Proyecto Dignidad | 2019 | Center-right to right-wing | Christian democracy Anti-corruption | César Váquez Muñiz | 87,379 (6.80%) | 1 / 27 | 1 / 51 | 1 / 78 |

## Historical parties
### Held national office or elected to Congress

| Party | Created | Disbanded | Years in national office | Ideology | Other names | Mergers/Splits |
| Federalist Party | 1789 | 1824 | 1789–1825 | Classical conservatism | | |
| Anti-Administration party | 1789 | 1792 | 1789–1792 | Anti-Federalism | | Merged into: Democratic-Republican Party in 1792 |
| Democratic-Republican Party | 1792 | 1825 | 1792–1825 | Jeffersonianism | Republican Party, Democratic Party | Split into: Democratic Party and National Republican Party |
| National Republican Party | 1825 | 1837 | 1825–1837 | Classical conservatism | Anti-Jacksonian Party, Adams-Clay Republicans | Merged into: Whig Party |
| Anti-Masonic Party | 1828 | 1838 | 1829–1839 | Anti-Masonry | | Merged into: Whig Party |
| Nullifier Party | 1828 | 1839 | 1831–1839 | Nullification | | |
| Whig Party | 1833 | 1854 | 1837–1857 | Traditionalist conservatism | | |
| Law and Order Party of Rhode Island | 1840 | 1848 | 1843–1845 | Anti-Dorr Rebellion | Charterites | Merged into: Whig Party |
| Liberty Party | 1840 | 1848 | 1845–1849 | Abolitionism | | Merged into: Free Soil Party and Republican Party |
| Know Nothing Party | 1844 | 1860 | 1845–1860 | Nativism | | Merged into: Constitutional Union Party (South) and Republican Party (North) |
| Free Soil Party | 1848 | 1855 | 1849–1857 | Abolitionism | | Merged into: Republican Party |
| Union Party | 1850 | 1853 | 1851–1853 | Conditional unionism | | |
| Opposition Party (Northern) | 1854 | 1858 | 1855–1857 | Abolitionism | | Merged into: Republican Party |
| Opposition Party (Southern) | 1858 | 1860 | 1859–1860 | Pro-slavery | | Merged into: Constitutional Union Party |
| Constitutional Union Party | 1860 | 1860 | 1860 | Southern unionism | Unionist Party | Merged into: Unconditional Union Party |
| Unconditional Union Party | 1861 | 1866 | 1860–1866 | American unionism | Union Party | Merged into: National Union Party |
| Liberal Republican Party | 1871 | 1875 | 1871–1875 | Classical liberalism | | Merged into: Republican Party and Democratic Party |
| Anti-Monopoly Party | 1874 | 1886 | 1873–1881 | Progressivism | | Merged into: People's Party (1892) |
| Greenback Party | 1874 | 1884 | 1879–1889 | Currency reform | | Merged into: People's Party (1892) |
| Readjuster Party | 1870 | 1885 | 1881–1889 | Left-wing populism | | |
| Labor Party | | | 1887–1891 |
| People's Party (1892) | 1892 | 1908 | 1892–1903 | Populism | Populist Party | Merged into: Democratic Party |
| Silver Party | 1892 | 1902 | 1893–1902 | Bimetalism | | Merged into: Democratic Party |
| Silver Republican Party | 1896 | 1900 | 1897–1900 | Bimetalism | | Merged into: Republican Party |
| Socialist Party of America | 1901 | 1972 | 1911–1913 1915–1919 1921–1929 | Democratic socialism | | Splinter parties: Nonpartisan League (1915) National Party (1917) Communist Party USA (1919) Proletarian Party of America (1920) American Labor Party (1936) Social Democratic Federation (1936) Final split: (1972–1973) Socialist Party USA, Social Democrats, USA, and Democratic Socialist Organizing Committee |
| Progressive Party (1912) | 1912 | 1920 | 1913–1919 | Progressivism | Bull Moose Party | Merged into: Republican Party |
| Farmer–Labor Party | 1920 | 1936 | 1919–1921 1923–1945 | Social democracy | | Merged into: Democratic Party |
| Wisconsin Progressive Party | 1934 | 1946 | 1935–1946 | Wisconsin Idea | | Merged into: Republican Party and Democratic Party |
| American Labor Party (1936) | 1936 | 1956 | 1939–1951 | Social democracy | | |
| Nonpartisan League | 1915 | 1956 | 1917–1959 | Democratic socialism Agrarianism | NPL | Merged into: North Dakota Democratic-NPL Party |

### Multi-state political parties

| Party | Created | Disbanded | Ideology | Other names | Mergers/Splits |
| American Republican Party (1843) | 1843 | 1845 | Nativism | | Merged into: American Party (1844) |
| Democratic-Republican Party (1844) | 1844 | 1844 | Texas annexation | | Merged into: Democratic Party |
| Southern Rights Party | 1850 | 1854 | | | Split into: Democratic Party and Whig Party Merged into: Democratic Party |
| National Union Party | 1864 | 1868 | American unionism | Union Party | Merged into: Republican Party |
| Radical Democracy Party | 1864 | 1864 | Abolitionism | | Merged into: Republican Party |
| Socialist Labor Party of America | 1876 | 2011 | De Leonism | Workingmen's Party of the United States | |
| National Democratic Party | 1896 | 1900 | Gold standard | Gold Democrats | Split into: Democratic Party Merged into: Democratic Party |
| Social Democracy of America | 1897 | 1900 | Utopian socialism | | Merged into: Social Democratic Party |
| United Christian Party | 1897 | 1928 | Theocracy Christian conservatism Direct democracy | | |
| Social Democratic Party | 1898 | 1901 | Democratic socialism | | Merged into: Socialist Party of America |
| Independence Party | 1906 | 1914 | Progressivism | Independence League | |
| Single Tax Party | 1910 | 1920s | Georgism | Land Value Tax Party, Commonwealth Land Party | |
| National Woman's Party | 1913 | 1930 | Feminism | | |
| Nonpartisan League | 1915 | 1956 | Agrarianism | | Splits from: Socialist Party of America Merged into: North Dakota Democratic–Nonpartisan League Party |
| National Party | 1917 | 1919 | Social democracy Progressivism Pro-war patriotism | | Splits from: Socialist Party of America |
| Labor Party of the United States | 1919 | 1920 | Social democracy | | Merged into: Farmer–Labor Party |
| Proletarian Party of America | 1920 | 1971 | Communism | | Splits from: Socialist Party of America |
| Workers Party of America | 1921 | 1929 | Marxism–Leninism | Communist Party USA | |
| American Party (1924) | 1924 | 1924 | Nativism | | |
| Progressive Party (1924) | 1924 | 1924 | Progressivism | | Merged into: Wisconsin Progressive Party |
| Communist League of America | 1928 | 1934 | Trotskyism | | Split from: Communist Party USA |
| American Labor Party (1932) | 1932 | 1935 | De Leonism | | Split from: Industrial Union Party |
| Industrial Union Party | 1933 | 1950 | De Leonism | | Split from: Socialist Labor Party of America |
| American Workers Party | 1933 | 1934 | Trotskyism | | Merged into: Workers Party of the United States |
| Workers Party of the United States | 1934 | 1938 | Trotskyism | | Merged into: Socialist Party of America |
| Union Party | 1935 | 1936 | Distributism | | |
| America First Party (1943) | 1944 | 1947 | Isolationism | | |
| American Vegetarian Party | 1947 | 1967 | | | |
| States' Rights Democratic Party | 1948 | 1948 | Segregationism | Dixiecrats | Split from: Democratic Party |
| Progressive Party (1948) | 1948 | 1955 | Progressivism | | Split from: Democratic Party |
| Constitution Party (1952) | 1952 | 1970s | Paleoconservatism | Christian Nationalist Party | |
| National States' Rights Party | 1958 | 1987 | Neo-fascism | | |
| American Party (1969) | 1969 | 2008 | Paleoconservatism | | |
| Raza Unida Party | 1970 | 2012 | Chicanismo | | |
| People's Party (1971) | 1971 | 1976 | Democratic socialism | | |
| U.S. Labor Party | 1975 | 1979 | LaRouchism | | |
| Citizens Party | 1979 | 1984 | Progressivism | | |
| New Alliance Party | 1979 | 1992 | Left-wing populism | | |
| Populist Party (1984) | 1984 | 1996 | White nationalism | | |
| Grassroots Party | 1986 | 2012 | Marijuana legalization | | |
| Greens/Green Party USA | 1991 | 2019 | Ecopolitics | Green Committees of Correspondence | |
| Labor Party | 1996 | 2007 | Social democracy | | |
| Southern Party | 1999 | 2003 | Southern nationalism | | |
| Boston Tea Party | 2006 | 2012 | Libertarianism | | |
| Independence Party of America | 2007 | 2013 | Centrism | | |
| Modern Whig Party | 2008 | 2019 | Conservative liberalism | | Merged into: Alliance Party |
| U.S. Marijuana Party | 2002 | 2016? | Cannabis legalisation Civil libertarianism | | |
| Rent Is Too Damn High Party | 2005 | 2015 | Populism Social welfare Anti-tax Anti-high rent | | |
| Justice Party | 2011 | 2024 | Progressivism | | |
| Serve America Movement | 2017 | 2022 | Big tent | | Merged into: Forward Party |

### Single-state political parties

| Party | Created | Disbanded | Ideology | Other names | Mergers/Splits | State |
| Toleration Party | 1816 | 1828 | Secularism | American Party | Merged into: Democratic Party | Connecticut |
| Working Men's Party | 1829 | 1831 | Owenism | | Merged into: Locofoco faction of the Democratic Party | New York |
| Anti-Mormon Party | 1841 | 1844 | | | | Illinois |
| Independent Anti-Mormon Party of Oneida County | 1870s | 1880s | | | | Idaho |
| People's Party | 1870 | 1891 | Mormonism | | | Utah |
| Liberal Party | 1870 | 1893 | Anti-clericalism | | | Utah |
| Independent Reform Party | 1874 | 1874 | | | | Illinois |
| Independent Party | 1884 | 1884 | | | | Florida |
| Home Rule Party of Hawaii | 1900 | 1912 | Hawaiian nationalism | | Merged into: Republican Party | Hawaii |
| American Party (1904) | 1904 | 1911 | | | | Utah |
| American Party (1914) | 1914 | 1916 | | | Split from: Democratic Party | New York |
| Minnesota Farmer–Labor Party | 1918 | 1944 | Populism | | Merged into: Minnesota Democratic–Farmer–Labor Party | Minnesota |
| Progressive Democratic Party | 1944 | 1948 | Progressivism | | Split from: Democratic Party | South Carolina |
| Women's Equality Party | 2014 | 2018 | Feminism | | | New York |
| Mississippi Freedom Democratic Party | 1964 | 1964 | Desegregation | | Merged into: Democratic Party | Mississippi |
| Choctaw Youth Movement | 1969 | 1975 | Choctaw nationalism | | | Oklahoma |
| Labor–Farm Party of Wisconsin | 1982 | 1987 | Left-wing populism | | | Wisconsin |
| Illinois Solidarity Party | 1986 | 2007 | Anti-LaRouchism | | Split from: Democratic Party | Illinois |
| Republican Moderate Party of Alaska | 1986 | 2011 | Centrism | | | Alaska |
| A Connecticut Party | 1990 | 1998 | Liberalism | | Split from: Republican Party | Connecticut |
| Independence Party of New York | 1991 | 2022 | Centrism | | | New York |
| New Jersey Conservative Party | 1992 | 2009 | Conservatism | | | New Jersey |
| Independent Grassroots Party | 1996 | 1998 | Marijuana legalization | | Split from: Grassroots Party | Minnesota |
| Marijuana Reform Party | 1998 | 2002 | Marijuana legalization | | | New York |
| Independence Party of Florida | 1999 | 2017 | | | | Florida |
| Personal Choice Party | 2004 | 2006 | Libertarianism | | | Utah |
| Florida Whig Party | 2006 | 2012 | Fiscal Conservatism | | | Florida |
| Connecticut for Lieberman | 2006 | 2013 | Centrism | | Split from: Democratic Party | Connecticut |
| Taxpayers Party of New York | 2010 | 2011 | Conservatism | | | New York |
| Freedom Party of New York | 2010 | 2011 | Progressivism | | | New York |
| United Independent Party | 2014 | 2017 | Liberalism | | | Massachusetts |
| Bread and Roses Party | 2018 | 2021 | Socialism | | | Maryland |
| Libertarian Party of Virginia | 1974 | 2022 | Libertarianism | | | Virginia |
| Tea Party of Nevada | 2010 | 2010 | Tea Party movement | | Split from: Republican Party | Nevada |
| People's Party | 2017 | 2025 | Progressivism | | | Florida |

### Political parties in the unincorporated territories

| Party | Created | Disbanded | Ideology | Other names | Mergers/Splits | Territory |
| Puerto Rican Nationalist Party | 1922 | 1965 | Puerto Rican nationalism | | | Puerto Rico |
| Puerto Rican Socialist Party | 1959 | 1993 | Puerto Rican nationalism | | | Puerto Rico |
| Covenant Party | 2001 | 2013 | Populism | | Merged into: Republican Party | Northern Mariana Islands |
| Working People's Party | 2010 | 2016 | | Partido del Pueblo Trabajador | | Puerto Rico |
| Popular Party (Guam) | 1949 | 1964 | | Commercial Party | Merged into: Democratic Party | Guam |
| Territorial Party (Guam) | 1956 | 1966 | | | Merged into: Republican Party | Guam |
| Popular Party (Northern Mariana Islands) | | 1978 | | | Merged into: Democratic Party | Northern Mariana Islands |
| Territorial Party (Northern Mariana Islands) | | | | | Merged into: Republican Party | Northern Mariana Islands |

## Non-electoral organizations
### Active

These organizations generally do not nominate candidates for election, but some of them have in the past; they otherwise function similarly to political parties.
| Political party | Year founded | Former names | Ideology | Mergers/Splits | International affiliations |
| African People's Socialist Party | 1972 | | | Merger of: Junta of Militant Organizations Black Rights Fighters Black Study Group | Uhuru Movement |
| American Indian Movement | 1968 | | Pan-Indianism | | |
| Black Hammer Party | 2019 | | Black nationalism Black separatism Black conservatism Pan-Africanism Trumpism Garveyism Afrocentrism Anti-colonialism Anti-liberalism Anti-communism Anti-Zionism Vaccine hesitancy Russophilia Sakaism Pan-Africanism | | |
| Black Riders Liberation Party | 1996 | | | | |
| Charter Committee | 1924 | | | | |
| Christian Liberty Party | 2000 | | | | |
| Citizens Party of the United States | 2004 | | | | |
| Committees of Correspondence for Democracy and Socialism | 1991 | | | | |
| Clan na Gael | 1867 | | Irish republicanism Irish nationalism Irish-American Interests | Successor to the Fenian Brotherhood | IRB (until 1924) Irish Volunteers (until 1918) IRA (until 1969) Provisional IRA (until 2005) |
| Democratic Socialists of America | 1982 | | Democratic socialism Multi-tendency | Merger of: DSOC, New American Movement | FSP, Progressive International |
| Freedom Road Socialist Organization | 1985 | | | | ICS |
| Irish Republican Socialist Committees of North America | 1984 | | Marxism–Leninism Irish republicanism Left-wing nationalism Revolutionary socialism Irish-American Interests | | IRSP |
| National Justice Party | 2020 | | White nationalism | | |
| National Labor Federation | 1972 | | Communism | | |
| National Socialist Movement | 1974 | | Neo-Nazism Neo-fascism White supremacy Anti-globalism | | WUNS |
| New Afrikan Black Panther Party | 2005 | | | | |
| New Black Panther Party | 1989 | | | | |
| New York State Right to Life | 1970 | | | | |
| News and Letters Committees | 1955 | | | | |
| No Labels | 2010 | | | | |
| Patriot Front | 2017 | | Neo-fascism American nationalism | | |
| Revolutionary Black Panther Party | 1992 | | | | |
| Revolutionary Communist Party, USA | 1975 | Revolutionary Union | Maoism | | |
| Social Democrats, USA | 1972 | | | | |
| Spartacist League/U.S. | 1966 | | | | ICL(FI) |
| World Socialist Party of the United States | 1916 | Socialist Party of the United States Socialist Educational Society Workers' Socialist Party | Socialism Syndicalism Anti-Leninism Communism Classical Marxism Revolutionary socialism Impossibilism | Split from: Socialist Party of America | WSM |

### Historical

These historical organizations did not officially nominate candidates for election but may have endorsed or supported campaigns; they otherwise functioned similarly to political parties.
| Party | Created | Disbanded | Ideology | Other names | Mergers/Splits |
| National Renaissance Party | 1949 | 1981 | Neo-Nazism | | |
| American Nazi Party | 1959 | 1983 | Neo-Nazism | World Union of Free Enterprise National Socialists, National Socialist White People's Party, New Order (successor organization) | Split into: National Socialist Party of America, National Alliance, National Socialist Movement, and New Order. |
| Patriot Party | 1960 | 1980 | Socialism | | Split from: Young Patriots Organization |
| Black Panther Party | 1966 | 1982 | Black nationalism | | |
| Youth International Party | 1967 | 1967 | Anarcho-socialism | Yippies | |
| Marxist–Leninist Party, USA | 1967 | 1993 | Marxism–Leninism | | |
| Red Guard Party | 1969 | 1973 | Maoism | | |
| Communist Workers Party | 1969 | 1985 | Maoism | | |
| National Socialist Party of America | 1970 | 1981 | Neo-Nazism | | Split from: American Nazi Party |
| National Amerindianist American Redman's Party | 1972 | 1976 | Third Worldism, Socialism | | |
| National Alliance | 1974 | 2013 | Neo-Nazism | | Split from: American Nazi Party |
| New Union Party | 1974 | 2005 | De Leonism | | |
| International Socialist Organization | 1977 | 2019 | Trotskyism | | |
| White Patriot Party | 1980 | 1987 | White supremacy | Carolina Knights of the Ku Klux Klan, Confederate Knights of the Ku Klux Klan | |
| New Party | 1992 | 1998 | Progressivism | | |
| Traditionalist Worker Party | 2013 | 2018 | Neo-Nazism | | |

## Party registration

Officially recognized parties in states are not guaranteed have ballot access, membership numbers of some parties with ballot access are not tracked, and vice versa. Not all of these parties are active, and not all states record voter registration by party. Boxes in gray mean that the specific party's registration is not reported.
Political party registration by state :
| State/DC | As of | DEM | REP | LIB | GRN | CST | NLB | RFM | WFP | Others | Unaffiliated | Total |
| Alaska | April 3, 2024 | 73,637 | 143,100 | 6,654 | – | 776 | – | – | – | 21,232 | 346,110 | 591,509 |
| Arizona | April 2024 | 1,192,205 | 1,434,982 | 31,164 | 2,796 | – | 27,539 | – | – | 1,369,634 | 1,369,634 | 4,058,320 |
| Arkansas | May 3, 2024 | 86,231 | 131,647 | 700 | 104 | – | – | – | – | 1 | 1,543,863 | 1,762,546 |
| California | February 20, 2024 | 10,285,108 | 5,388,479 | 240,618 | 102,659 | 271 | 42,039 | – | – | 1,195,512 | 4,822,647 | 22,077,333 |
| Colorado | May 1, 2024 | 1,006,438 | 903,079 | 37,315 | 8,280 | 11,245 | 7,969 | – | – | 9,413 | 1,850,286 | 3,834,112 |
| Connecticut | May 16, 2024 | 798,205 | 466,908 | 2,996 | 1,350 | – | – | – | 298 | 29,155 | 919,524 | 2,218,436 |
| Delaware | May 1, 2024 | 350,955 | 205,909 | 2,028 | 718 | 238 | 1,768 | 47 | 314 | 15,130 | 197,529 | 774,636 |
| Washington, D.C. | August 2022 | 379,489 | 26,567 | 2,290 | 3,855 | – | – | – | – | – | 82,556 | 494,757 |
| Florida | February 20, 2024 | 4,363,490 | 5,214,907 | 35,445 | 7,712 | 14,833 | 7,498 | – | – | 266,493 | 3,539,382 | 13,449,760 |
| Idaho | August 2022 | 129,550 | 577,507 | 11,147 | – | 4,036 | – | – | – | – | 275,271 | 997,511 |
| Iowa | November 1, 2022 | 597,120 | 681,871 | 12,100 | 2,966 | – | – | – | – | – | 555,988 | 1,850,045 |
| Kansas | April 30, 2024 | 503,972 | 874,132 | 24,151 | – | – | 39 | – | – | – | 563,482 | 1,965,776 |
| Kentucky | April 15, 2024 | 1,511,242 | 1,615,451 | 16,391 | 2,403 | 1,376 | – | 209 | – | 190,063 | 153,870 | 3,491,005 |
| Louisiana | November 7, 2023 | 1,133,813 | 1,021,571 | 15,839 | 2,583 | 154 | 2,296 | 823 | – | 130,273 | 665,154 | 2,979,345 |
| Maine | March 5, 2024 | 341,925 | 281,904 | 5,236 | 36,724 | – | 9,677 | – | – | – | 275,560 | 951,026 |
| Maryland | March 2024 | 2,208,095 | 994,529 | 18,836 | – | – | 234 | – | – | 54,299 | 909,180 | 4,185,173 |
| Massachusetts | May 3, 2024 | 1,336,825 | 415,438 | – | 3,599 | 292 | – | 113 | 722 | 36,484 | 3,132,433 | 4,925,906 |
| Nebraska | May 1, 2024 | 330,657 | 605,466 | 18,036 | – | – | – | – | – | 6,684 | 271,568 | 1,232,411 |
| Nevada | May 1, 2024 | 708,432 | 654,182 | 20,967 | – | – | – | – | – | 48,105 | 794,532 | 2,329,718 |
| New Hampshire | March 29, 2024 | 260,281 | 304,375 | – | – | – | – | – | – | – | 325,930 | 890,586 |
| New Jersey | June 1, 2024 | 2,496,054 | 1,563,771 | 25,174 | 11,498 | 12,989 | – | 1,550 | – | 28,084 | 2,422,574 | 6,561,694 |
| New Mexico | April 30, 2024 | 577,692 | 415,653 | – | – | – | – | – | – | 27,443 | 315,390 | 1,336,178 |
| New York | February 27, 2024 | 6,404,069 | 2,903,144 | – | – | – | – | – | 54,678 | 572,778 | 3,173,678 | 13,108,347 |
| North Carolina | May 1, 2024 | 2,404,692 | 2,234,315 | 50,119 | 2,056 | 0 (New) | 7,752 | – | – | – | 2,743,054 | 7,441,988 |
| Oklahoma | April 30, 2024 | 649,432 | 1,214,774 | 22,365 | – | – | – | – | – | – | 449,488 | 2,336,059 |
| Oregon | August 2022 | 1,014,041 | 730,765 | 20,865 | 7,820 | – | – | – | 8,364 | 141,185 | 1,031,392 | 2,958,277 |
| Pennsylvania | April 29, 2024 | 3,895,223 | 3,499,524 | 42,919 | 10,326 | – | – | – | – | – | 1,273,199 | 8,721,191 |
| Rhode Island | May 2024 | 281,725 | 103,268 | – | – | – | – | – | – | – | 338,629 | 723,622 |
| South Dakota | May 1, 2024 | 144,243 | 303,722 | 2,923 | – | – | 22 | – | – | 945 | 149,935 | 601,790 |
| Utah | June 3, 2024 | 275,698 | 991,894 | 26,411 | 74 | 8,497 | 2,353 | – | – | 88,837 | 574,734 | 1,968,498 |
| West Virginia | May 4, 2024 | 358,056 | 477,549 | 10,800 | 2,542 | – | – | – | – | 39,412 | 292,963 | 1,181,322 |
| Wyoming | May 4, 2024 | 23,787 | 178,387 | 1,057 | – | 343 | 13 | – | – | – | 15,875 | 219,462 |

### Parties by number of registered voters

* Democratic Party – 46,121,872
* Republican Party – 36,556,705
* American Independent Party – 834,730
* Libertarian Party – 704,455
* Independent Party of Florida – 234,524
* Green Party – 210,053
* Conservative Party of New York State – 164,826
* Peace and Freedom Party – 138,238
* Independent Party of Oregon – 137,972
* Independent Party of Louisiana – 136,125
* No Labels – 109,920
* American Independent Party of Nevada – 103,500
* American Independent Party of Utah – 85,243
* Working Families Party – 64,674
* Constitution Party – 46,553
* Liberal Party – 31,343
* Independent Party of Connecticut – 29,136
* Common Sense Party – 22,029
* Conservative Party of Florida – 17,595
* Alaskan Independence Party – 18,683
* Conservative Party of New Jersey – 14,639
* United Independent Party – 14,469
* Independent Party of Delaware – 10,722
* Constitution Party of Utah – 8,475
* Socialist Party of New Jersey – 7,856
* Nebraska Legal Marijuana NOW Party – 6,684
* Natural Law Party – 5,668
* Boricua Party – 5,068
* Approval Voting Party – 4,721
* Constitution Party of Oregon – 3,845
* We the People Party – 3,445
* Oregon Progressive Party – 3,213
* Unity Party – 3,134
* United Utah Party – 3,087
* Coalition With a Purpose – 2,936
* Ecology Party of Florida – 2,881
* Reform Party – 2,742
* Party for Socialism and Liberation – 1,827
* Socialist Party – 1,700
* Socialist Party of Massachusetts – 1,615
* Colorado Center Party – 1,558
* Green Party of Alaska – 1,520
* People's Party – 1,212
* Conservative Party of Louisiana – 794
* Conservative Party of Delaware – 790
* Socialist Workers Party – 727
* Liberal Party of Delaware – 682
* Forward Party – 608
* American Party of Delaware – 520
* American Solidarity Party – 568
* American Delta Party – 462
* Alaska Moderate Party – 388
* Progressive Party of Alaska – 253
* Patriot's Party of Alaska – 219
* Workers Party of Massachusetts – 183
* OWL – 96
* Mandalorians – 92
* Blue Enigma Party – 81
* Alliance Party – 62
* Normal Party of California – 24
* Prohibition Party – 19
* Moderate Party of California – 18
* One Party – 15
* FreedomReform Party – 8
* Ring of Truth Party – 6
* Hogwash Party – 5
* Aurora Party – 3
* Ohio Reform Party - 1
* Unaffiliated/Independent – 34,006,350