November 2021 breakdown of state legislative party membership: 54.22% Republicans, 44.70% Democrats

54.22% of all state legislators are Republicans, and 44.70% are Democrats, according to Ballotpedia’s November partisan count of the 7,383 state legislators.

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 to be organized under a multipartisan, power-sharing coalition.

Nationally, the state legislatures include 1,957 state senators and 5,363 state representatives. Democrats hold 861 state Senate seats (down three since the end of October) and 2,439 state House seats (an increase of two). Republicans hold 4,003 of the 7,383 total state legislative seats—1,091 state Senate seats (up five since October) and 2,912 state House seats (up three).

Independent or third-party legislators hold 40 seats, of which 33 are state House seats, and seven are state Senate seats. There are 40 vacant seats.

During the month of November, Democrats saw a net decrease of one seat, and Republicans saw a net increase of eight seats. Compared to November of last year, the state legislatures are 1.88% less Democratic (46.58% to 44.70%) and 1.83% more Republican (52.39% to 54.22%).  

Additional reading: