Overview
- District ID
- mt-hd-018
- State
- Montana
- Chamber
- Lower chamber
- District Code
- 018
- Land Area
- 3,785.9 sq mi
- Water Area
- 45.6 sq mi
Boundary
Boundary as GeoJSON
Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.
Counties
Showing all 3 counties
Places
Showing all 18 places
Overlapping Congressional Districts
| Congressional district | Population in both | Share of this district's population | Share of the congressional district's population | Share of this district's land |
|---|
| MT District 2 | 9,929 | 86.1% | 1.8% | 87.0% |
| MT District 1 | 1,597 | 13.9% | 0.3% | 13.0% |
Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).
Voters
- Registered Voters
- 6,893
- Active Voters
- 6,046 (87.7%)
Party Registration
This state's voter file does not record party registration.
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2023–2024 | 5,576 (80.9%) | 0 (0.0%) | 0 (0.0%) |
| 2021–2022 | 5,045 (73.2%) | 0 (0.0%) | 0 (0.0%) |
| 2019–2020 | 5,400 (78.3%) | 0 (0.0%) | 0 (0.0%) |
| 2017–2018 | 4,540 (65.9%) | 0 (0.0%) | 0 (0.0%) |
| 2015–2016 | 4,202 (61.0%) | 0 (0.0%) | 0 (0.0%) |
| 2013–2014 | 3,615 (52.4%) | 0 (0.0%) | 0 (0.0%) |
| 2011–2012 | 3,561 (51.7%) | 0 (0.0%) | 0 (0.0%) |
Turnout counts today's registered voters with a counted ballot in the cycle's elections (the odd and even year), as a share of today's registered voters. Voters who have since left the rolls are not counted.
Browse the voter list for this district (premium access; sign-in required)
Source: Civitech voter file snapshot as of 09/10/2025. These are registered voters, separate from the Census population figures. Counts under 10 are suppressed and shown as "<10".
Demographics
- Total Population
- 11,888 (± 189)
- Median Age
- 41.5
- Median Household Income
- $59,196 (± $5,037)
- High School Graduate or Higher (age 25+)
- 87.4%
- Bachelor's Degree or Higher (age 25+)
- 22.7%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 2,645 | 22.2% |
| 18 to 64 | 6,710 | 56.4% |
| 65 and over | 2,533 | 21.3% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 422 | 3.5% |
| White, not Hispanic | 10,139 | 85.3% |
| Black, not Hispanic | 85 | 0.7% |
| Asian, not Hispanic | 119 | 1.0% |
| American Indian / Alaska Native, not Hispanic | 583 | 4.9% |
| Native Hawaiian / Pacific Islander, not Hispanic | 0 | 0.0% |
| Some other race, not Hispanic | 28 | 0.2% |
| Two or more races, not Hispanic | 512 | 4.3% |
Source: U.S. Census Bureau, American Community Survey 2020-2024 ACS 5-year estimates (tables B01001, B01002, B01003, B03002, B15003, B19013) for this state legislative district. Estimates are survey-based; ± figures are 90% margins of error.
Citizen Voting Age Population
- Total Citizen Population
- 11,725
- Citizen Voting Age Population (CVAP)
- 9,095
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 11,356 | 96.9% |
| Hispanic | 365 | 3.1% |
| White | 10,226 | 87.2% |
| Black | 91 | 0.8% |
| Asian | 100 | 0.9% |
| American Indian / Alaska Native | 583 | 5.0% |
| Native Hawaiian / Pacific Islander | 0 | 0.0% |
| Two or More Races | 32 | 0.3% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 8,849 | 97.3% |
| Hispanic | 244 | 2.7% |
| White | 8,023 | 88.2% |
| Black | 111 | 1.2% |
| Asian | 94 | 1.0% |
| American Indian / Alaska Native | 623 | 6.8% |
| Native Hawaiian / Pacific Islander | 0 | 0.0% |
| Two or More Races | 21 | 0.2% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
