At the beginning of March 2023, 55% of all state legislatures in the United States are Republican while 45% are Democratic. There are 7,386 state legislative seats in the country.
Democrats hold 856 state Senate seats and 2,431 state House seats, gaining four seats since last month. Republicans hold 1,110 state Senate seats and 2,947 state House seats, gaining six seats since last month.
Independent or third-party legislators hold 25 seats across nine different states, including 21 state House seats and four state Senate seats. There are 14 vacant state House seats and three vacant state Senate seats across 17 different states.
Editor’s note: A previous version of this story reported that there were 7,383 state legislative seats. The story has been updated to reflect the actual total, which is 7,386. It has also been updated to reflect that both chambers of the Alaskan Legislature are organized under multipartisan, power-sharing coalitions.