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Sources via Akashic Edge methodology: academic election datasets, certified state results, Census, ACS.

Home›State House Chambers

State house index

State House Chambers

Partisan breakdown of 49 state house chambers from 1972-2023 elections. Click any state to see district-level detail.

View state senates Congressional districts

Democratic Seats

2,474

21 D-controlled chambers

Republican Seats

2,804

28 R-controlled chambers

Chambers

49

1972-2023 election data

Total Seats

5,300

All state house seats tracked

Chamber Control by State

49 chambers

21Dem control

28Rep control

View current chamber compositions on Ballotpedia →

Connecticut2022

House of Delegates

Massachusetts2022

D: 132R: 26O: 1

Mississippi2019

New Hampshire2023

General Assembly

North Carolina2022

North Dakota2022

Pennsylvania2022

Rhode Island2022

South Carolina2022

South Dakota2022

D: 94R: 19O: 10

House of Delegates

West Virginia2022

House of Delegates

Data source: Klarner State Legislative Election Returns (1972-2023). Nebraska is unicameral (no state house). Current compositions may differ due to special elections, party switches, and vacancies.