February 2021 breakdown of state legislative party membership: 54.21% Republicans, 44.90% Democrats

According to Ballotpedia’s February partisan count of the 7,383 state legislators across the United States, 54.21% of all state legislators are Republicans and 44.90% are Democrats.

Ballotpedia tallies the partisan balance of state legislatures at the end of every month. This refers to which political party holds the majority of seats in each chamber. Republicans control 61 chambers, while Democrats hold 37. The Alaska House of Representatives is the only chamber organized under a multipartisan, power-sharing coalition.

Nationally, the state legislatures include 1,951 state senators and 5,366 state representatives. Democrats hold 866 state Senate seats—gaining two since January—and 2,449 state House seats, an increase of one. Republicans hold 4,002 of the 7,383 state legislative seats—1,085 state Senate seats (down four since January) and 2,917 state House seats, a decrease of one. Independent or third-party legislators hold 37 seats, of which 30 are state House seats and seven state Senate seats. There are 29 vacant seats.

During the month of February, Democrats saw a net increase of three seats, while Republicans saw a net decrease of five seats. Compared to February 2020, Democrats have lost eight state Senate seats (874 v. 866) and 132 state House seats (2,581 v. 2,449). For Republicans, they have gained one state Senate seat (1,084 v 1,085) and 142 state House seats (2,775 v 2,917).  

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