April 2021 partisan composition of state legislative seats: 54.3% Republicans, 44.9% Democrats

Ballotpedia’s April partisan count of state legislative seats found that 54.29% of state legislators are Republicans and 44.94% are Democrats. 

At the end of every month, Ballotpedia tallies the partisan balance of state legislatures, which refers to which political party holds a majority of seats in each chamber. Republicans currently control 61 chambers, while Democrats control 37. One chamber, the Alaska House of Representatives, has a power-sharing agreement between the two parties.

At the end of April, Republicans held 1,091 of the 1,972 total state senate seats, while Democrats held 869. The Republicans gained two seats since March, while the Democrats’ number of seats remained the same. Republicans also held 2,917 of the 5,411 total state House seats (down one from last month), while Democrats controlled 2,449 (up two). Third-party or independent officeholders held 38 seats, and there were 19 vacancies.

In April, Democrats had a net gain of two seats, while Republicans have a net gain of one. Compared to April 2020, Democrats have lost 142 state legislative seats, while Republicans have gained 151 seats. 

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