Overview
- District ID
- mt-sd-030
- State
- Montana
- Chamber
- Upper chamber (state senate)
- District Code
- 030
- Land Area
- 1,303.2 sq mi
- Water Area
- 22.7 sq mi
Boundary
Boundary as GeoJSON
Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.
Counties
Showing all 2 counties
Places
Showing all 6 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 1 | 21,753 | 100.0% | 4.0% | 100.0% |
Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).
Voters
- Registered Voters
- 18,620
- Active Voters
- 16,055 (86.2%)
Party Registration
This state's voter file does not record party registration.
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2023–2024 | 14,806 (79.5%) | 0 (0.0%) | 0 (0.0%) |
| 2021–2022 | 14,341 (77.0%) | 0 (0.0%) | 0 (0.0%) |
| 2019–2020 | 13,451 (72.2%) | 0 (0.0%) | 0 (0.0%) |
| 2017–2018 | 10,892 (58.5%) | 0 (0.0%) | 0 (0.0%) |
| 2015–2016 | 9,575 (51.4%) | 0 (0.0%) | 0 (0.0%) |
| 2013–2014 | 8,172 (43.9%) | 0 (0.0%) | 0 (0.0%) |
| 2011–2012 | 7,524 (40.4%) | 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
- 20,984 (± 1,375)
- Median Age
- 41.9
- Median Household Income
- $118,165 (± $9,276)
- High School Graduate or Higher (age 25+)
- 97.7%
- Bachelor's Degree or Higher (age 25+)
- 63.2%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 4,836 | 23.0% |
| 18 to 64 | 12,569 | 59.9% |
| 65 and over | 3,579 | 17.1% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 1,408 | 6.7% |
| White, not Hispanic | 18,575 | 88.5% |
| Black, not Hispanic | 68 | 0.3% |
| Asian, not Hispanic | 162 | 0.8% |
| American Indian / Alaska Native, not Hispanic | 27 | 0.1% |
| Native Hawaiian / Pacific Islander, not Hispanic | 2 | 0.0% |
| Some other race, not Hispanic | 214 | 1.0% |
| Two or more races, not Hispanic | 528 | 2.5% |
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
- 20,449
- Citizen Voting Age Population (CVAP)
- 15,616
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 19,258 | 94.2% |
| Hispanic | 1,190 | 5.8% |
| White | 18,739 | 91.6% |
| Black | 69 | 0.3% |
| Asian | 118 | 0.6% |
| American Indian / Alaska Native | 28 | 0.1% |
| Native Hawaiian / Pacific Islander | 2 | 0.0% |
| Two or More Races | 12 | 0.1% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 14,959 | 95.8% |
| Hispanic | 656 | 4.2% |
| White | 14,550 | 93.2% |
| Black | 76 | 0.5% |
| Asian | 156 | 1.0% |
| American Indian / Alaska Native | 171 | 1.1% |
| Native Hawaiian / Pacific Islander | 1 | 0.0% |
| Two or More Races | 7 | 0.0% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
