- January 11, 2018 – First day for declarations for nomination to be filed for Primary Election
- March 12, 2018 – 5:00 p.m. Last day for candidates to file declarations for Primary Election
- May 29, 2018 – 5:00 p.m. Last day for Independent/Minor Party/Indigent candidates to submit signed petitions to county election administrators (declaration and filing fee are due to appropriate filing officer by June 4, 2018)
- June 5, 2018 – Primary Election
- October 1, 2018 – Deadline for write-in candidates to file a Declaration of Intent for the General Election
- November 6, 2018 – Federal General Election
- Candidate Campaign Finance Requirements
- A separate agency, the Commissioner of Political Practices, handles campaign finance filings
- Contact the office of the Commissioner of Political Practices for information on filing a C-1, C-3 and other campaign finance forms: 406-444-2942
- United States Senator, 6-year term
- United States Representative, 2-year term
- Public Service Commissioner, 4-year term
- District 1
- District 5
- Clerk of the Supreme Court, 6-year term
- Supreme Court Justice, 8-year term
- #2* remainder of term
- District Court Judge, 6-year term
- District 1, Dept 1; District 1, Dept 2; District 2, Dept 1; District 2, Dept 2; District 3, Dept 1; District 4, Dept 1; District 4, Dept 2; District 4, Dept 3; District 5, Dept 1; District 6, Dept 1; District 7, Dept 1; District 8, Dept 1; District 8, Dept 2; District 8, Dept 3; District 8, Dept 4* remainder of term; District 9, Dept 1; District 10, Dept 1; District 11, Dept 1; District 11, Dept 2; District 11, Dept 3; District 12, Dept 1; District 13, Dept 1; District 13, Dept 2; District 13, Dept 3; District 13, Dept 7; District 13, Dept 8; District 14, Dept 1; District 15, Dept 1; District 16, Dept 1; District 16, Dept 2; District 17, Dept 1; District 18, Dept 1; District 18, Dept 3; District 18, Dept 2* remainder of term; District 20, Dept 2; District 22, Dept 1
- State Senator, 4-year term
- Districts 1, 4, 5, 8, 9, 11, 12, 13, 14, 19, 20, 22, 24, 27, 29, 30, 32, 33, 34, 41, 42, 43, 48, 49, and 50
- State Representative, 2-year term
- Districts 1 – 100
- Declaration for Nomination and Oath of Candidacy
- Filing Information for Major Party Candidates and Candidates for Nonpartisan Offices
- 2018 Offices, Qualifications, and Fees
- Candidate Calendar
- Write-In Candidate Forms and Filing Information
- Independent/Minor Party/Indigent and Political Party Qualification
- Term Limits
- Change of Address – Legislature
- Withdrawal of Candidacy
- Candidate Appointment
- Petition for Recount
- Applicable Laws
- 2019 Special Purpose District Election Calendar
- 2019 Municipal Election Calendar
For detailed legislative district maps for elections held from 2004-2022, please follow the links below:
- For elections that were held from 2004-2014, reference this Montana Legislative District map.
- For elections being held from 2014-2022, reference this Montana Legislative District map.
2020 potential candidates please note: due to the 2013 Redistricting Plan, legislative candidates should carefully check the House or Senate District boundaries to determine that you meet candidacy or office qualifications.
Each candidate for office must affirm when they file their candidate filing form that they meet (or will meet within constitutional and statutory deadlines) the qualifications prescribed by the Constitution and laws of the U.S. and the State of Montana.
- 2012 and 2014 Precinct and Legislative District Comparisons
- 2014 House and Senate Districts to Counties
- 2014 Senate and House Districts to Counties and Hold over Senators
- 2014 Counties to House and Senate Districts
- 2014-2022 Senate and House Maps (scroll down on page to view city-specific and county-specific maps; for detailed precinct-level maps, contact the county election office)
If you are interested in running as a candidate for one of Montana’s qualified political parties, check the status of parties currently qualified for the ballot at https://sosmt.gov/elections/parties.
If you are interested in running as a write-in candidate, independent or as a representative of a party that has not qualified for the ballot in Montana, please visit Forms and Filing Information or contact the Secretary of State’s office at 406-444-9608 for more information, or contact the Elections and Voter Services division at [email protected].
The Elections and Voter Services Division is not responsible for campaign or lobbying issues. A separate agency, the Commissioner of Political Practices, has jurisdiction over campaign finance and campaign issues. The commissioner also monitors and enforces laws relating to lobbying disclosure and ethical standards of conduct for legislators, public officers, and state employees.