There are 138 open state legislative seats in 2023, meaning newcomers will win at least 24% of all seats. This is the most since Ballotpedia began gathering data in 2011.
A seat can become open if an incumbent leaves office or runs for re-election in a different district than the one they currently represent. Louisiana, Mississippi, New Jersey, and Virginia are holding state legislative elections in 2023. The last time all four held elections was in 2019.
