States · Legislatures

U.S. State Legislatures

Every U.S. state legislature, the lawmaking branch of each state government, browsable by chamber and district. A state legislature writes and passes state law, sets the state budget, and (in most states) confirms gubernatorial appointments. Forty-nine of the fifty states have a bicameral legislature — an upper chamber, the State Senate, and a lower chamber most commonly called the State House or House of Representatives (some states name it the Assembly or House of Delegates). Nebraska is the lone exception: its single nonpartisan chamber, the Nebraska Legislature, seats members styled "state senators." The District of Columbia is governed by an elected Council rather than a state legislature, and is included here for completeness. Each state links to its legislature hub, where the chamber rosters are grouped by district; every member links to a sourced profile covering their biography, the district they represent, their party, and the external authority records (OpenStates, Wikipedia) that back every fact. This catalog covers currently-serving members; the full machine-readable roster is published per state and chamber as a versioned JSON dataset for downstream researchers and language models, and the rendered pages and the read API share the same row shape.