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Prof. Justin Levitt's Doug Spencer's Guide to Drawing the Electoral Lines

State Summary

In Connecticut, primary responsibility for congressional and state legislative districts falls on the state legislature, which may pass a plan with a 2/3 supermajority of each legislative chamber (and no gubernatorial veto).  If the legislature does not pass a plan, responsibility falls to a nine-member backup commission.

In the 2010 cycle, both the legislature and the backup commission failed to draw congressional lines; the state Supreme Court drew the map instead, on Feb. 10, 2012.  The legislature also missed its deadline for state legislative lines; the backup commission drew plans (State Senate and State House) on Nov. 30, 2011.   A later legal challenge to the state legislative plan was withdrawn.


Seats: (projected)


Drawn by:

Plan Status:

Party Control:
  Upper House:
  Lower House:

Key Info for 2000 Cycle


Connecticut General Assembly Redistricting Project

Primary governing law

Key Info for 2010 Cycle


Primary governing law

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The Latest Updates

Dec 1, 2021
The Connecticut Reapportionment Commission has asked the state's attorney general to petition the state's supreme court for an extension until Dec. 21st to finalize a congressional plan.
Nov 23, 2021
The Connecticut bipartisan Reapportionment Commission unanimously approved new state senate maps. The commission will ask the state supreme court for an extension beyond the Nov. 30th deadline in order to complete congressional redistricting.
Nov 18, 2021
The Connecticut bipartisan Reapportionment Commission unanimously approved new state house maps. The commission expects to approve state senate maps prior to the Nov. 30th deadlines, but expected to ask the state supreme court for an extension to complete congressional redistricting.
Nov 16, 2021
Connecticut's bipartisan Reapportionment Commission selected a replacement tie-breaking ninth member. The commission has until Nov. 30th to finalize redistricting plans.
Oct 19, 2021
The Connecticut Reapportionment Commission selected the ninth and final member at their last meeting. The commission has until Nov. 30th to finalize redistricting plans.
Sep 17, 2021
Connecticut’s 2021 Reapportionment Committee missed the Sept. 15 deadline to draft redistricting plans. The committee was dissolved. Per the state constitution (Art. III § 6) a commission will be formed that will have until Nov. 30, 2021 to draft a plan.
Sep 3, 2021
Connecticut's General Assembly Reapportionment Committee announced the public hearing schedule. Four meetings will be held between Sept. 8 and Sept. 14, 2021.
May 26, 2021
Governor Ned Lamont signed Pub. Act. No. 21-13 abolishing prison gerrymandering in Connecticut.
May 12, 2021
The Connecticut legislature passed S.B. 753 which would change how incarcerated individuals are counted for purposes of determining state legislative districts.
Feb 15, 2021
Connecticut state leaders named the 8 members to sit on the 2021 Reapportionment Committee.


Primary responsibility for Connecticut’s congressional and state legislative lines rests with the state legislature, which may pass a plan on a vote of 2/3 of the members of each legislative chamber.  [Conn. Const. art. III, § 6]

If the legislature fails to pass a plan, those lines will be drawn by a nine-member backup commission, in place since 1976. Each of the four legislative leaders (majority and minority leader in each legislative house) chooses two commissioners, and those eight commissioners choose a ninth, who must be an elector of the state. [Conn. Const. art. III, § 6]

Original jurisdiction to challenge a redistricting plan, or to rectify inaction, in state court is vested with the Connecticut Supreme Court. [Conn. Const. art. III, § 6]


The legislature’s deadline for producing plans is Sept. 15, 2021. If the legislature fails to pass a plan, the backup commission will be convened, and must provide a plan by Nov. 30, 2021.  [Conn. Const. art. III, § 6]  The legislative session began on Jan. 6, 2021, and is currently scheduled to end on June 9, 2021.  Candidates must file for congressional and state legislative primary elections by June 7, 2022. [Conn. Gen. Stat. § 9-400(a)]

Connecticut prohibits redrawing lines mid-decade, before the next Census. [Conn. Const. art. III, § 6]

Public input

The legislature and backup commission held meetings and hearings in the last cycle, archived here.  The legislature has not yet announced any specific plans for public input this cycle.


Like all states, Connecticut must comply with constitutional equal population requirements and abide by the Voting Rights Act and constitutional rules on race.

For state legislative lines, the state constitution further requires that districts be contiguous, and that state House districts not divide towns except where necessary to comply with other legal requirements. [Conn. Const. art. III, § 4Fonfara v. Reapportionment Comm’n, 222 Conn. 166 (1992)]


2010 cycle

Neither Connecticut’s legislature nor its backup commission could agree on a congressional plan; the state Supreme Court approved congressional lines on Feb. 10, 2012.  [In re Petition of Reapportionment Comm’n, 36 A.3d 661 (Conn. 2012)]

Connecticut’s legislature also could not agree on a state legislative plan.  On Nov. 30, 2011, the backup commission approved state Senate and state House maps.  Challenges to these plans were voluntarily dismissed.

2000 cycle

Connecticut’s legislature could not agree on any plan.  The backup commission adopted congressional districts on Dec. 21, 2001; state Senate districts on Nov. 26, 2001, and state House districts on Nov. 30, 2001.  It appears that none of the plans were challenged in court

Redistricting Cases in Connecticut

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Connecticut | Federal Trial | Federal Appellate | State Upper | State Lower
NAACP v. Merrill
Parties voluntarily dismissed federal court challenge to state legislative districts: alleged malapportionment from prison gerrymandering
Last Updated Apr 16, 2020
Case Number

No. 3:18-cv-01094 (D. Conn.), No. 19-00576 (2d Cir)

Cycle 2020