State Redistricting Deadlines

11/10/2020

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Every 10 years following the federal decennial census, all federal, state and local election district boundaries must be redrawn or revised. Redistricting begins when the new census data is delivered to the states.

Title 13 of the United States Code requires the secretary of commerce to provide governors and the officials responsible for redistricting in each state with the census results. Public Law 94-171 directs the Census Bureau to only furnish total population counts, but the bureau does offer additional data, including tables covering voting age, race and ethnicity. These summary files provide population data from American Indian areas, counties and cities down to the census block level. The data is delivered to the states by April 1 of the year following the decennial census.

Note: On August 3, 2020, the U.S. Census Bureau announced that both self-response and field data collection will end by September 30—a change from October 31, the delayed deadline announced on April 13, 2020 due to the COVID-19 pandemic. Both of these dates are well past the originally planned July 31 end date to data collection.

The April 13 announcement included a request to Congress for authority to delay the release of census data to be used for congressional apportionment by 120 days, to April 30, 2021, and census data to be used for redistricting by 120 days as well, to July 31, 2021.

The Bureau’s reversal in its operational plans means a cut-back in data collection by a month and an accelerated pace to complete data collection. It signaled the Bureau’s intention to deliver apportionment counts by the statutory deadline of December 31, 2020. A formal announcement has not addressed the release of data for redistricting, however informally it is believed that the Census Bureau plans to get the redistricting data out by April 1, 2021.

As a general rule, legislative and congressional redistricting must be completed before filing deadlines for the next primary elections for federal and state legislators. Some states go beyond this rule, however, and set specific redistricting deadlines. These are listed below. If you have any questions or concerns, please contact christi.zamarripa@ncsl.org.

The box allows you to conduct a full text search or type the state name.

 

State Redistricting Deadlines

Alabama                           Alabama Const. Art. IX, Sec. 199

Legislative: Legislature to conduct redistricting at its first session after the taking of the decennial census.
Congressional: None

 

Alaska                              Alaska Const. Art. VI, § 10

Legislative: 90 days after the board has been appointed and the official reporting of the decennial census, the board shall adopt a final redistricting plan and issue a proclamation of redistricting.
Congressional: None

 

Arizona

Legislative and congressional: None

 

Arkansas                           Ark. Const. Art. 8, § 4

Legislative: On or before Feb. 1 immediately following each federal census, the board shall reapportion the state for representatives.
Congressional: None

 

California                          Cal Const, Art. XXI § 2

Legislative and congressional: By Aug. 15 in each year ending in the number 1, the commission shall approve four final maps that separately set forth the district boundary lines for the congressional, senatorial, assembly, and State Board of Equalization districts.*

 

*Please note: On July 17, 2020, the California Supreme Court granted the Legislature’s emergency petition and issued a peremptory writ of mandate for a four-month extension to California’s redistricting deadlines. The Commission is directed to approve and certify the final statewide maps to the Secretary of State by no later than December 15, 2021.

Colorado                        Colo. Const. Art. V, Section 48.2, Colo. Const. Art. V, Section 44.4

 

Legislative: No later than Sept. 15 of the redistricting year, the commission shall adopt final senate and house plans.
Congressional: No later than Sept. 1 of the redistricting year, the commission shall adopt a final plan, which must then be submitted to the supreme court for its review.

 

Connecticut                     Conn. Const. Art. III., Sec. 6

 

Legislative and congressional: By Sept. 15 following the year in which the decennial census of the United States is taken.

 

Delaware                        Del. Code Ann. tit. 29, § 805

Legislative: Not later than June 30, 2021.
Congressional: None

 

Florida                              Fla. Const. Art. III, § 16

Legislative: At its regular session in the second year following each decennial census.                                                                                                                                         
Congressional: None

 

Georgia

Legislative and congressional: None

 

Hawaii                             HRS Const. Art. IV, § 2

Legislative and congressional: Not more than 150 days from the date on which its members are certified, the commission shall file with the chief election officer a reapportionment plan for the state legislature and a reapportionment plan for the United States congressional districts.

Idaho                                Idaho Const. Art. III, Section 2

 

Legislative and congressional: Within 90 days after the commission has been organized or the necessary census data are available, whichever is later.

 

Illinois                             Illinois Const., Art. IV, § 3

Legislative: General Assembly has until June 30 in the year following each decennial census.
Congressional: None

 

Indiana                           Ind. Const. Art. 4, § 5, Ind. Code Ann. § 3-3-2-1, Ind. Code Ann. § 3-3-2-2

 

Legislative and congressional: At the first regular session of the general assembly convening immediately following the United States decennial census.

 

 

Iowa                               Iowa Code § 42.3

 

Legislative and congressional: Not later than Sept. 1 of each year ending in 1. The legislature shall complete legislative redistricting by September 1 and for the bill to become law through Governor signature (or veto override) by September 15.

 

Kansas                            Kan. Const. Art. 10, § 1

Legislative: By the end of its regular session.
Congressional: None

 

Kentucky                        Ky. Const. § 33

Legislative: The first General Assembly after the adoption of this constitution shall divide the state into 38 senatorial districts, and 100 representative districts. The General Assembly shall then, and every 10 years thereafter, redistrict the state. (Constitution was first adopted in 1792).
Congressional: None

 

Louisiana                       La. Const. Art. III, § 6

Legislative: By the end of the year following the year in which the population of this state is reported to the president of the United States for each decennial federal census.
Congressional: None

Maine                               Me. Const. Art. IV, Pt. 1, § 3, Me. Const. Art. IV, Pt. 2, § 2, Me. Rev. Stat. tit. 21-A, § 1206

Legislative: The apportionment plan of the commission shall be submitted to the clerk of the House and the secretary of the Senate no later than June 1 of the year in which apportionment is required. The Legislature shall enact the submitted plan of the commission or a plan of its own by June 11 of the year in which apportionment is required.
Congressional: In 2021 and every 10 years thereafter, the commission shall submit its plan to the clerk of the House of Representatives no later than June 1. The Legislature shall enact the submitted plan of the commission or a plan of its own in regular or special session by a vote of 2/3 of the members of each house by June 11. This action is subject to the Governor’s approval.

Maryland                     Md. Const. art. III, Section 5

Legislative: By the 45th day after the opening of the regular session of the General Assembly in the second year following every census.
Congressional: None

 

Massachusetts              ALM Constitution Amend. Art. CI

 

Legislative: At its first regular session after the year in which said census was taken.
Congressional: None

Michigan                         MCLS Const. Art. IV, § 6, Mich. Comp. Laws Serv. § 3.62, Mich. Comp. Laws Serv. § 4.261

 

Legislative and congressional: Not later than Nov. 1 in the year immediately following the federal decennial census, the commission shall adopt a redistricting plan for each of the following types of districts: state senate districts, state house of representative districts, and congressional districts.

Minnesota                     Minn. Const., Art. IV, § 3, Minn. Stat. § 204B.14

 

Legislative and congressional: At its first session after each enumeration of the inhabitants of this state made by the authority of the United States, the legislature shall have the power to prescribe the bounds of congressional and legislative districts.

Mississippi                   Miss. Const. Ann. Art. 13, § 254, Miss. Const. Ann. Art. 4, § 36, Miss. Code Ann. § 5-3-93, Miss. Code Ann. § 5-3-123

 

Legislative: The members of the committee shall draw no later than fifteen (15) days prior to the scheduled adjournment of the next regular session of the Legislature following the delivery of the decennial census data to the state and every ten (10) years thereafter and at such other times as they may be directed by joint resolution of the Mississippi Legislature.
Congressional: The members of the committee shall draw a plan to redistrict no later than thirty (30) days preceding the convening of the next regular session of the legislature after the results of the 1980 decennial census are published and every ten (10) years thereafter.

Missouri                          Mo. Const. Art. III, § 2, Mo. Const. Art. III, § 3, Mo. Const. Art. III, § 7

Legislative: The non-partisan State Demographer to begin drawing maps within 10 days of when the President receives the Census counts and file a tentative plan within 6 months of when the population counts are reported to the President. The tentative plan filed by the Non-Partisan State Demographer, or adjustments to that plan made by the House Apportionment Commission, will become final within 8 months of when the population counts are reported to the President. Not later than five months after the appointment of the commission, the commission shall file with the secretary of state a tentative plan of apportionment and map of the proposed districts. Not later than six months after the appointment of the commission, the commission shall file with the secretary of state a final statement of the numbers and the boundaries of the district.
Congressional: None

Montana                         Mont. Const., Art. V        § 14

Legislative: The commission shall submit its plan for legislative districts to the legislature at the first regular session after its appointment or after the census figures are available. This is the 2023 session. Within 30 days after submission, the legislature shall return the plan to the commission with its recommendations. Within 30 days thereafter, the commission shall file its final plan for legislative districts with the secretary of state and it shall become law.
Congressional: Within 90 days after the final decennial census figures are available.

Nebraska

Legislative and congressional: None

 

Nevada                       Nev. Const. Art. 4, § 5

Legislative: In the first session after the taking of the decennial census. (2021)
Congressional: None

 

New Hampshire              N.H. Const. Pt. SECOND, Art. 9, N.H. Const. Pt. SECOND, Art. 26

 

Legislative: By the end of the regular session following the decennial census
Congressional: None

New Jersey                   N.J. Const., Art. IV, Sec. III, Para. 1

Legislative: One month of the receipt by the governor of the official decennial census or on or before Feb. 1 of the year following the year in which the census is taken, whichever date is later.
Congressional: On or before the third Tuesday of each year ending in 2, or within three months after receipt in each decade by the appropriate state officer of the official statement by the clerk of the United States House of Representatives.

 

*Note: On November 3, 2020, the voters in New Jersey approved a constitution amendment. This amendment would add in a deadline date, of February 15, to receive the federal census data. If the census data arrives after February 15, redistricting would be delayed by two years and the previous maps would be used until the new maps can be drawn.

New Mexico

Legislative and congressional: None

 

New York                       NY CLS Const Art III, § 5-b

Legislative and congressional: There are no legislative deadlines, but the New York Independent Commission has a deadline. The Commission must combine the Senate and Assembly plans in one proposed bill and submit it to the legislature by Jan. 1, 2022 (with an allowance to submit as late as Jan. 15, 2022 if necessary). If the legislature rejects the first plan or the governor vetoes it, the commission must submit a second plan to the legislature no later than Feb. 28, 2022. If the legislature rejects the first and second plan, there is still no deadline for the legislature itself to act.

North Carolina             N.C. Const. art. II, Section 3, N.C. Const. art. II, Section 5

 

Legislative: At the first regular session convening after the return of every decennial census.
Congressional: None

North Dakota                N.D. Const. Art. IV, § 2

Legislative: Until the adjournment of the first regular session after each decennial census. (2021)
Congressional: None

 

Ohio                              Oh. Const. Art. XI, § 1, Oh. Const. Art. XIX, § 1

Legislative: Not later than the first day of September of a year ending in the numeral 1. If there is no such bipartisan commission approval by that date, the commission has until Sept. 15 to try again to adopt a bipartisan approved 10 year map, or instead just a simple majority 4 year map.
Congressional: Not later than the last day of September of a year ending in the numeral 1. If there is no such bipartisan legislature approval by that date, the Ohio redistricting commission has until Oct. 31 to adopt a bipartisan commission approved 10 year map; further, if there is no such bipartisan commission approval by that date, the legislature has until Nov. 30 to try again to adopt a bipartisan legislature approved 10 year map, or instead just a simple majority 4 year map.

Oklahoma                        Okl. Const. Art. V, § 11A

Legislative: Within 90 legislative days after the convening of the first regular session of the legislature following each federal decennial census.
Congressional: None

Oregon                          Ore. Const. Art. IV, § 6, Or. Rev. Stat. Ann. § 188.125

Legislative: By July 1 of the year of the odd-numbered year regular session following an enumeration of the inhabitants by the US government. If there is no legislative plan enacted by July 1, the Secretary of State must adopt a plan by August 15.
Congressional: By July 1 of the year of the odd-numbered year regular session. If the legislature does not pass a congressional plan by July 1, a citizen can file a suit in Marion County Court. The Chief Justice of the Oregon Supreme Court appoints retired judges to be on a panel that adopts a congressional plan. Then the Supreme Court reviews the plan and approves or rejects it.

 

Pennsylvania                   Pa. Const. Art. II, § 17

Legislative: No later than 90 days after either the commission has been duly certified or the population data for the commonwealth as determined by the federal decennial census are available, whichever is later in time, the commission shall file a preliminary reapportionment plan.
Congressional: None

 

Rhode Island

Legislative and congressional: None

 

South Carolina

Legislative and congressional: None

 

South Dakota                 S.D. Const. Article III, § 5

 

Legislative: By Dec. 1 of the year in which the apportionment is required.
Congressional: None

Tennessee

Legislative and congressional: None

 

Texas                              Tex. Const. Art. III, § 28

Legislative: During the first regular session after the publication of each United States decennial census, the legislature will apportion the state into senatorial and representative districts. Texas has biennial session and the next session will be 2021.
Congressional: None

 

Utah                                Utah Const. Art. IX, § 1

Legislative and congressional: No later than the annual general session next following the legislature’s receipt of the census.

 

Vermont                           Vt. Stat. Ann. tit. 17, § 1905 - § 1907

 

Legislative and congressional: A tentative plan is due on or before July 1 of the year following each decennial census; the final proposal is due not later than Aug. 15.

Virginia                            Va. Const. Art. II, Section 6

 

Legislative and congressional: The General Assembly shall reapportion the Commonwealth into electoral districts in the year 2011 and every 10 years thereafter.

Washington                     Wash. Const. Art. II, § 43; Wash. Rev. Code Ann. § 44.05.100

Legislative and congressional: Not later than Nov. 15 of the year ending in 1, Washington commission must submit its plan to the legislature. After submission, the legislature will have 30 days to amend the commission's plan.

West Virginia

Legislative and congressional: None

 

Wisconsin                     Wis. Const. Art. IV, § 3

Legislative: At its first session after each enumeration made by the authority of the United States, the legislature shall apportion and district anew the members of the senate and assembly.
Congressional: None

 

Wyoming                          Wyo. Const. Art. 3, § 48

Legislative: At the first budget session of the legislature following the federal census. (2022)
Congressional: None

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