top of page
POLITICS
United States
Largest Parties by Membership
This list features the largest American political parties by the size of the membership as of April 2025.
RANK | PARTY | ORIGIN | POLITICAL POSITION | MEMBERSHIP |
1 | Democratic Party | 1828 | Center-left | 45,512,696 |
2 | Republican Party | 1854 | Center-right | 37,314,494 |
3 | American Independent Party | 1967 | Far-right | 861,468 |
4 | Libertarian Party | 1971 | — | 722,761 |
5 | Independent Party of Florida | 1993 | — | 276,467 |
6 | Green Party | 2001 | Left-wing | 246,994 |
7 | Conservative Party of New York State | 1962 | Right-wing | 154,128 |
8 | Constitution Party | 1992 | Far-right | 150,949 |
9 | No Labels | 2010 | Center | 150,104 |
10 | Independent Party of Louisiana | 2016 | Center | 147,941 |
11 | Independent Party of Oregon | 2007 | Center | 146,899 |
12 | Peace and Freedom Party | 1967 | Left-wing | 142,311 |
References
Wikipedia, 2024. List of political parties in the United States. Available at: https://en.wikipedia.org/wiki/List_of_political_parties_in_the_United_States#Active_parties [Accessed 1 December 2025].
SCALA
lists
bottom of page