August 2021 breakdown of state legislative party membership: 54.26% Republicans, 44.72% Democrats

54.26% of all state legislators are Republicans, and 44.72% are Democrats, according to Ballotpedia’s August 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 863 state Senate seats and 2,439 state House seats, a loss of four seats in each chamber since the end of July. Republicans hold 4,006 of the 7,383 total state legislative seats—1,091 state Senate seats (up one since July) and 2,915 state House seats (a decrease of five).

Independent or third-party legislators hold 39 seats, of which 32 are state House seats, and seven are state Senate seats. There are 36 vacant seats.

During the month of August, Democrats saw a net decrease of eight seats, and Republicans saw a net decrease of four seats. Compared to August of last year, the state legislatures are 2.06% less Democratic (46.78% to 44.72%) and 2.26% more Republican (52.00% to 54.26%).  

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