2018 Idaho elections
A general election was held in the U.S. state of Idaho on November 6, 2018. All of Idaho's executive officers were up for election as well as both of Idaho's two seats in the United States House of Representatives. Primary elections were held on May 15, 2018.
Federal offices
United States House of Representatives
Both of Idaho's two seats in the United States House of Representatives were up for election in 2018.In the first congressional district, Raúl Labrador did not seek reelection and unsuccessfully ran for governor. Former state senator and fellow Republican Russ Fulcher was elected to represent the district.
In the second congressional district, Mike Simpson ran for reelection and won comfortably.
Governor
Incumbent Republican governor Butch Otter chose not to seek a fourth term. He was succeeded by lieutenant governor Brad Little.Lieutenant governor
Incumbent Republican lieutenant governor Brad Little did not run for re-election to a third full term, and instead ran for governor. Former state representative Janice McGeachin won the general election with nearly 60% of the votes.Attorney general
Incumbent Republican attorney general Lawrence Wasden won re-election to a fifth term.Republican primary
Nominee
- Lawrence Wasden, incumbent.
Primary results
Democratic primary
Nominee
- Bruce Bistline, attorney and Democratic nominee in 2014.
Primary results
General election
Predictions
Results
Secretary of state
Incumbent Republican secretary of state Lawerence Denney won re-election to a second term.Republican primary
Nominee
- Lawerence Denney, incumbent.
Primary results
Democratic primary
Candidates
- Jill Humble, nurse.
- Joseph Chastain, tech consultant.
Primary results
General election
Predictions
Debate
Results
Treasurer
Incumbent Republican state treasurer Ron Crane did not run for re-election to a sixth term. Former state representative Julie Ellsworth won the election unopposed as no Democrats filed to run for the race.Republican primary
Candidates
- Julie Ellsworth, former state representative.
- Tom Kealey, Chicago Connection Restaurant Group owner and former certified public accountant.
- Vicky McIntyre, Ada County Treasurer.
Debate
Primary results
General election
Controller
Incumbent Republican Controller Brandon Woolf was unopposed in both the Republican primary and in the general election.Republican primary
Nominee
- Brandon Woolf, incumbent.
Primary results
General election
Superintendent of public instruction
Incumbent Republican superintendent Sherri Ybarra narrowly won re-election to a second term.Democratic primary
Candidates
- Cindy Wilson, teacher.
- Allen Humble, retired hospital surveyor.
Primary results
Republican primary
Candidates
- Sherri Ybarra, incumbent.
- Jeff Dillon, Wilder School Superintendent.
Debate
Primary results
General election
Endorsements
Debate
Results
By congressional district
Despite losing the election, Wilson won the second congressional district.| District | Ybarra | Wilson | Representative |
| 58% | 42% | Raúl Labrador | |
| 58% | 42% | Russ Fulcher | |
| 44% | 56% | Mike Simpson |
State legislature
All 35 seats in the Idaho Senate and 70 seats in the Idaho House of Representatives were up for election.Idaho Senate
Idaho House of Representatives
Judicial seats
Supreme Court
Incumbent Idaho Supreme Court Justice G. Richard Bevan was appointed by Governor Butch Otter in 2017 to succeed Daniel Eismann. He ran unopposed and secured a full term.Court of Appeals
Two judges on the Idaho Court of Appeals ran for election.Incumbent judge David Gratton has been serving since 2009 while Jessica Lorello was appointed by Governor Otter in 2017 to succeed John Melanson. Both of them ran unopposed and secured another term.