The following table indicates the party of elected officials in the U.S. state of Connecticut:
The table also indicates the historical party composition in the:
For years in which a presidential election was held, the table indicates which party's nominees received the state's electoral votes.
The parties are as follows: American (A), American Republican (AR), A Connecticut Party (C), Democratic (D), Democratic-Republican (DR), Federalist (F), Free Soil (FS), Independent Democrat (ID), Jackson (J), no party (N), National Republican including both Adams Faction (Adams) and Anti-Jacksonian (Anti-J) (NR), National Union (NU), Opposition (O), Republican (R), Toleration Republican (TR), Whig (W), and a tie or coalition within a group of elected officials.