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Idaho state legislative districts

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There are 105 seats in the Idaho State Legislature. All 105 seats, 35 in the Idaho State Senate and 70 in the Idaho House of Representatives, are up for election every two years.

Chambers

Click the following tabs for more information about each chamber:

Senate

The Idaho Senate is the upper chamber of the Idaho State Legislature. It consists of 35 Senators elected to two-year terms, each representing a district of the state.

As of the 2020 Census, Idaho state senators represented an average of 52,611 residents. After the 2010 Census, each member represented 44,957 residents.

Qualifications

See also: State legislature candidate requirements by state

Article III, Section 6 of the Idaho Constitution states: "No person shall be a senator or representative who, at the time of his election, is not a citizen of the United States, and an elector of this state, nor anyone who has not been for one year next preceding his election an elector of the county or district whence he may be chosen."[1]

According to the Idaho Secretary of State, candidates must be 21 years old.[2]

Vacancies

See also: How vacancies are filled in state legislatures

If there is a vacancy in the Idaho State Legislature, the governor is responsible for appointing a replacement.

The political party committee that last held the vacant seat has 15 days after the vacancy occurs to submit a list of three recommended candidates to the governor. The governor makes the selection based on the recommendations.

If any party committee fails to submit a list of recommended candidates after the 15-day deadline, the governor has five days to appoint a person from the political party that last held the seat. The person appointed to the seat serves for the remainder of the unfilled term.[3]

DocumentIcon.jpg See sources: Idaho Code §59-904A


Salaries

See also: Comparison of state legislative salaries
State legislative salaries, 2024[4]
SalaryPer diem
$19,913/yearFor legislators residing within 50 miles of the capitol: $74/day. For legislators residing more than 50 miles from the capitol: $221/day.

Districts

These are links to every district in the Idaho State Senate.


Office
Idaho State Senate District 1
Idaho State Senate District 2
Idaho State Senate District 3
Idaho State Senate District 4
Idaho State Senate District 5
Idaho State Senate District 6
Idaho State Senate District 7
Idaho State Senate District 8
Idaho State Senate District 9
Idaho State Senate District 10
Idaho State Senate District 11
Idaho State Senate District 12
Idaho State Senate District 13
Idaho State Senate District 14
Idaho State Senate District 15
Idaho State Senate District 16
Idaho State Senate District 17
Idaho State Senate District 18
Idaho State Senate District 19
Idaho State Senate District 20
Idaho State Senate District 21
Idaho State Senate District 22
Idaho State Senate District 23
Idaho State Senate District 24
Idaho State Senate District 25
Idaho State Senate District 26
Idaho State Senate District 27
Idaho State Senate District 28
Idaho State Senate District 29
Idaho State Senate District 30
Idaho State Senate District 31
Idaho State Senate District 32
Idaho State Senate District 33
Idaho State Senate District 34
Idaho State Senate District 35


House

The Idaho House of Representatives is the lower chamber of the Idaho State Legislature. It consists of 70 representatives, two from each district, elected to two-year terms.

As of the 2020 Census, Idaho state representatives represented an average of 26,305 residents. After the 2010 Census, each member represented 22,479 residents.

Qualifications

See also: State legislature candidate requirements by state

Article III, Section 6 of the Idaho Constitution states: "No person shall be a senator or representative who, at the time of his election, is not a citizen of the United States, and an elector of this state, nor anyone who has not been for one year next preceding his election an elector of the county or district whence he may be chosen."[5]

According to the Idaho Secretary of State, candidates must be 21 years old.[6]

Vacancies

See also: How vacancies are filled in state legislatures

If there is a vacancy in the Idaho State Legislature, the governor is responsible for appointing a replacement.

The political party committee that last held the vacant seat has 15 days after the vacancy occurs to submit a list of three recommended candidates to the governor. The governor makes the selection based on the recommendations.

If any party committee fails to submit a list of recommended candidates after the 15-day deadline, the governor has five days to appoint a person from the political party that last held the seat. The person appointed to the seat serves for the remainder of the unfilled term.[7]

DocumentIcon.jpg See sources: Idaho Code §59-904A


Salaries

See also: Comparison of state legislative salaries
State legislative salaries, 2024[8]
SalaryPer diem
$19,913/yearFor legislators residing within 50 miles of the capitol: $74/day. For legislators residing more than 50 miles from the capitol: $221/day.

Districts

These are links to every district in the Idaho House of Representatives.


Office
Idaho House of Representatives District 1A
Idaho House of Representatives District 1B
Idaho House of Representatives District 2A
Idaho House of Representatives District 2B
Idaho House of Representatives District 3A
Idaho House of Representatives District 3B
Idaho House of Representatives District 4A
Idaho House of Representatives District 4B
Idaho House of Representatives District 5A
Idaho House of Representatives District 5B
Idaho House of Representatives District 6A
Idaho House of Representatives District 6B
Idaho House of Representatives District 7A
Idaho House of Representatives District 7B
Idaho House of Representatives District 8A
Idaho House of Representatives District 8B
Idaho House of Representatives District 9A
Idaho House of Representatives District 9B
Idaho House of Representatives District 10A
Idaho House of Representatives District 10B
Idaho House of Representatives District 11A
Idaho House of Representatives District 11B
Idaho House of Representatives District 12A
Idaho House of Representatives District 12B
Idaho House of Representatives District 13A
Idaho House of Representatives District 13B
Idaho House of Representatives District 14A
Idaho House of Representatives District 14B
Idaho House of Representatives District 15A
Idaho House of Representatives District 15B
Idaho House of Representatives District 16A
Idaho House of Representatives District 16B
Idaho House of Representatives District 17A
Idaho House of Representatives District 17B
Idaho House of Representatives District 18A
Idaho House of Representatives District 18B
Idaho House of Representatives District 19A
Idaho House of Representatives District 19B
Idaho House of Representatives District 20A
Idaho House of Representatives District 20B
Idaho House of Representatives District 21A
Idaho House of Representatives District 21B
Idaho House of Representatives District 22A
Idaho House of Representatives District 22B
Idaho House of Representatives District 23A
Idaho House of Representatives District 23B
Idaho House of Representatives District 24A
Idaho House of Representatives District 24B
Idaho House of Representatives District 25A
Idaho House of Representatives District 25B
Idaho House of Representatives District 26A
Idaho House of Representatives District 26B
Idaho House of Representatives District 27A
Idaho House of Representatives District 27B
Idaho House of Representatives District 28A
Idaho House of Representatives District 28B
Idaho House of Representatives District 29A
Idaho House of Representatives District 29B
Idaho House of Representatives District 30A
Idaho House of Representatives District 30B
Idaho House of Representatives District 31A
Idaho House of Representatives District 31B
Idaho House of Representatives District 32A
Idaho House of Representatives District 32B
Idaho House of Representatives District 33A
Idaho House of Representatives District 33B
Idaho House of Representatives District 34A
Idaho House of Representatives District 34B
Idaho House of Representatives District 35A
Idaho House of Representatives District 35B

Redistricting

In 37 states, legislatures are primarily responsible for drawing congressional district lines. Seven states have only one congressional district each, rendering congressional redistricting unnecessary. Four states employ independent commissions to draw the district maps. In two states, politician commissions draw congressional district lines.

State legislative district lines are primarily the province of the state legislatures themselves in 37 states. In seven states, politician commissions draw state legislative district lines. In the remaining six states, independent commissions draw the lines.[9]

In Idaho, an independent commission is responsible for drawing both congressional and state legislative district lines. The commission is composed of six members.[10]

  1. One member is appointed by the majority leader of the Idaho State Senate.
  2. One member is appointed by the minority leader of the Idaho State Senate.
  3. One member is appointed by the majority leader of the Idaho House of Representatives.
  4. One member is appointed by the minority leader of the Idaho House of Representatives.
  5. The chairs of the state's two largest political parties each appoint one member.

According to the Idaho Constitution, no member may be an elected or appointed official while serving on the commission. The state constitution further requires that the commission produce draft congressional and state legislative maps within 90 days of the commission's formation. There is no explicit deadline for final plans.[10]

The state constitution requires that state legislative districts "be contiguous, and that counties be preserved intact where possible." State statutes require that both congressional and state legislative districts meet the following criteria:[10]

  • County lines must be maintained "to the extent possible."
  • Districts must "preserve traditional neighborhoods, communities of interest, and (if possible) voting precinct boundaries."
  • Districts should not be "oddly shaped."
  • In districts comprising more than one county or a portion thereof, "those constituent pieces must also be connected by a state or federal highway."

On November 12, 2021, the Idaho Independent Redistricting Commission formally submitted its final legislative map to the secretary of state. On November 10, 2021, the commission voted 6-0 in favor of the final legislative map.[11] The commission had earlier voted in favor of the map on November 5, 2021, but chose to recast their votes on November 10, 2021, due to concerns regarding Idaho's open meetings laws.[11][12][13] Idaho has 35 legislative districts, each of which elects one senator and two representatives.

Senate elections

Idaho state senators serve two-year terms, with all seats up for election every two years. Idaho holds elections for its legislature in even years.

2026

See also: Idaho State Senate elections, 2026

Elections for the Idaho State Senate will take place in 2026. The general election is on November 3, 2026.

2024

See also: Idaho State Senate elections, 2024

Elections for the Idaho State Senate took place in 2024. The general election was on November 5, 2024. The primary was May 21, 2024. The filing deadline was March 15, 2024.

In the 2024 elections, the Republicans in the Idaho State Senate increased their majority to 29-6.

Idaho State Senate
Party As of November 5, 2024 After November 6, 2024
     Democratic Party 7 6
     Republican Party 28 29
Total 35 35

2022

See also: Idaho State Senate elections, 2022

Elections for the Idaho State Senate took place in 2022. The general election was on November 8, 2022. A primary was scheduled for May 17, 2022. The filing deadline was March 11, 2022.

In the 2022 elections, the Republicans in the Idaho State Senate retained their 28-7 majority.

Idaho State Senate
Party As of November 8, 2022 After November 9, 2022
     Democratic Party 7 7
     Republican Party 28 28
Total 35 35

2020

See also: Idaho State Senate elections, 2020

Elections for the office of Idaho State Senate took place in 2020. The general election was held on November 3, 2020. A primary was scheduled for June 2, 2020. The filing deadline was March 13, 2020.

On March 30, 2020, Governor Brad Little (R) and Secretary of State Lawerence Denney (R) announced that Idaho's primary election would be conducted by mail. On March 24, 2020, the secretary of state announced the implementation of online absentee ballot application process, which can be accessed here. The primary date effectively changed from May 19, 2020, to June 2, 2020—the day on which ballots were due.[14]

In the 2020 elections, the Republicans in the Idaho State Senate retained their 28-7 majority.

Idaho State Senate
Party As of November 3, 2020 After November 4, 2020
     Democratic Party 7 7
     Republican Party 28 28
Total 35 35

2018

See also: Idaho State Senate elections, 2018

Elections for the Idaho State Senate took place in 2018. A semi-closed primary election took place on May 15, 2018. The general election was held on November 6, 2018. The candidate filing deadline was March 9, 2018.[15]

In the 2018 elections, the Republican majority in the Idaho State Senate was reduced from 29-6 to 28-7.

Idaho State Senate
Party As of November 6, 2018 After November 7, 2018
     Democratic Party 6 7
     Republican Party 29 28
Total 35 35

2016

See also: Idaho State Senate elections, 2016

Elections for the Idaho State Senate were held in 2016. The primary election took place on May 17, 2016, and the general election was held on November 8, 2016. The candidate filing deadline was March 11, 2016. All 35 seats in the Idaho State Senate were up for election in 2016.

Heading into the election, Republicans held a 28-7 majority. Republicans gained one seat in the election, giving them a 29-6 majority.

Idaho State Senate
Party As of November 7, 2016 After November 8, 2016
     Democratic Party 7 6
     Republican Party 28 29
Total 35 35

House elections

Idaho state representatives serve two-year terms, with all seats up for election every two years. Idaho holds elections for its legislature in even years.

2026

See also: Idaho House of Representatives elections, 2026

Elections for the Idaho House of Representatives will take place in 2026. The general election is on November 3, 2026.

2024

See also: Idaho House of Representatives elections, 2024

Elections for the Idaho House of Representatives took place in 2024. The general election was on November 5, 2024. The primary was May 21, 2024. The filing deadline was March 15, 2024.

In the 2024 elections, Republicans increased their majority in the Idaho State House from 59-11 to 61-9.

Idaho House of Representatives
Party As of November 5, 2024 After November 6, 2024
     Democratic Party 11 9
     Republican Party 59 61
Total 70 70

2022

See also: Idaho House of Representatives elections, 2022

Elections for the Idaho House of Representatives took place in 2022. The general election was on November 8, 2022. A primary was scheduled for May 17, 2022. The filing deadline was March 11, 2022.

In the 2022 elections, Republicans increased their majority in the Idaho State House from 58-12 to 59-11.

Idaho House of Representatives
Party As of November 8, 2022 After November 9, 2022
     Democratic Party 12 11
     Republican Party 58 59
Total 70 70

2020

See also: Idaho House of Representatives elections, 2020

Elections for the office of Idaho House of Representatives took place in 2020. The general election was held on November 3, 2020. A primary was scheduled for June 2, 2020. The filing deadline was March 13, 2020.

On March 30, 2020, Governor Brad Little (R) and Secretary of State Lawerence Denney (R) announced that Idaho's primary election would be conducted by mail. On March 24, 2020, the secretary of state announced the implementation of online absentee ballot application process, which can be accessed here. The primary date effectively changed from May 19, 2020, to June 2, 2020—the day on which ballots were due.[22]

In the 2020 elections, the Republican majority in the Idaho House of Representatives increased from 56-14 to 58-12.

Idaho House of Representatives
Party As of November 3, 2020 After November 4, 2020
     Democratic Party 14 12
     Republican Party 56 58
Total 70 70

2018

See also: Idaho House of Representatives elections, 2018

Elections for the Idaho House of Representatives took place in 2018. A semi-closed primary election took place on May 15, 2018. The general election was held on November 6, 2018. The candidate filing deadline was March 9, 2018.[23]

In the 2018 elections, the Republican majority in the Idaho House of Representatives was reduced from 59-11 to 56-14.

Idaho House of Representatives
Party As of November 6, 2018 After November 7, 2018
     Democratic Party 11 14
     Republican Party 59 56
Total 70 70

2016

See also: Idaho House of Representatives elections, 2016

Elections for the Idaho House of Representatives were held in 2016. The primary election took place on May 17, 2016, and the general election was held on November 8, 2016. The candidate filing deadline was March 11, 2016. All 70 seats in the Idaho House of Representatives were up for election in 2016.

Heading into the election, Republicans held a 56-14 majority. Republicans gained three seats in the election, giving them a 59-11 majority.

Idaho House of Representatives
Party As of November 7, 2016 After November 8, 2016
     Democratic Party 14 11
     Republican Party 56 59
Total 70 70

District maps

State Senate


State House


See also

Footnotes

  1. Idaho Legislature, "Article III Legislative Department - Section 6," accessed May 21, 2025
  2. Vote Idaho, "How to Run for Office," accessed May 27, 2025
  3. Idaho Legislature, "Idaho Statutes," accessed January 23, 2024 (Statute 59-904A)
  4. National Conference of State Legislatures, "2024 Legislator Compensation," August 21, 2024
  5. Idaho Legislature, "Article III Legislative Department - Section 6," accessed May 21, 2025
  6. Vote Idaho, "How to Run for Office," accessed May 27, 2025
  7. Idaho Legislature, "Idaho Statutes," accessed January 23, 2024 (Statute 59-904A)
  8. National Conference of State Legislatures, "2024 Legislator Compensation," August 21, 2024
  9. All About Redistricting, "Who draws the lines?" accessed March 25, 2015
  10. 10.0 10.1 10.2 All About Redistricting, "Idaho," accessed April 20, 2015
  11. 11.0 11.1 Boise State Public Radio, "Commission for reappointment recasts votes on Idaho’s new political district maps," Nov. 11, 2021
  12. FiveThirtyEight, "The partisan breakdown of Idaho’s new map," accessed Nov. 16, 2021
  13. Boise State Public Radio, "Final iterations of Idaho's districting maps are proposed," Nov. 7, 2021
  14. ‘’The Office of the Governor,’’ “Proclamation,” accessed April 24, 2020
  15. Idaho Secretary of State, "Elections - 2018 Primary and General Election Calendar," accessed August 7, 2017
  16. Follow the Money: "Idaho Senate 2010 Campaign Contributions"
  17. Follow the Money, "Idaho 2008 Candidates," accessed July 18, 2013
  18. Follow the Money, "Idaho 2006 Candidates," accessed July 18, 2013
  19. Follow the Money, "Idaho 2004 Candidates," accessed July 18, 2013
  20. Follow the Money, "Idaho 2002 Candidates," accessed July 18, 2013
  21. Follow the Money, "Idaho 2000 Candidates," accessed July 18, 2013
  22. ‘’The Office of the Governor,’’ “Proclamation,” accessed April 24, 2020
  23. Idaho Secretary of State, "Elections - 2018 Primary and General Election Calendar," accessed August 7, 2017
  24. Follow the Money: "Idaho House 2010 Campaign Contributions"
  25. Follow the Money, "Idaho 2008 Candidates," accessed July 18, 2013
  26. Follow the Money, "Idaho 2006 Candidates," accessed July 18, 2013
  27. Follow the Money, "Idaho 2004 Candidates," accessed July 18, 2013
  28. Follow the Money, "Idaho 2002 Candidates," accessed July 18, 2013
  29. Follow the Money, "Idaho 2000 Candidates," accessed July 18, 2013