Overview
- District ID
- mt-hd-066
- State
- Montana
- Chamber
- Lower chamber
- District Code
- 066
- Land Area
- 404.1 sq mi
- Water Area
- 1.08 sq mi
Boundary
Boundary as GeoJSON
Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.
Counties
| County | Overlap | Share of district land | Share of county land |
|---|
| Gallatin County | 404.15 sq mi | 100.0% | 15.5% |
Showing all 1 county
Places
Showing all 3 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 | 10,906 | 100.0% | 2.0% | 100.0% |
Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).
Voters
- Registered Voters
- 10,582
- Active Voters
- 8,739 (82.6%)
Party Registration
This state's voter file does not record party registration.
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2023–2024 | 8,079 (76.3%) | 0 (0.0%) | 0 (0.0%) |
| 2021–2022 | 7,828 (74.0%) | 0 (0.0%) | 0 (0.0%) |
| 2019–2020 | 7,138 (67.5%) | 0 (0.0%) | 0 (0.0%) |
| 2017–2018 | 5,707 (53.9%) | 0 (0.0%) | 0 (0.0%) |
| 2015–2016 | 4,969 (47.0%) | 0 (0.0%) | 0 (0.0%) |
| 2013–2014 | 4,185 (39.5%) | 0 (0.0%) | 0 (0.0%) |
| 2011–2012 | 3,891 (36.8%) | 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
- 12,541 (± 1,174)
- Median Age
- 38.6
- Median Household Income
- $99,100 (± $14,106)
- High School Graduate or Higher (age 25+)
- 96.4%
- Bachelor's Degree or Higher (age 25+)
- 64.4%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 2,354 | 18.8% |
| 18 to 64 | 8,001 | 63.8% |
| 65 and over | 2,186 | 17.4% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 547 | 4.4% |
| White, not Hispanic | 11,138 | 88.8% |
| Black, not Hispanic | 76 | 0.6% |
| Asian, not Hispanic | 54 | 0.4% |
| American Indian / Alaska Native, not Hispanic | 31 | 0.2% |
| Native Hawaiian / Pacific Islander, not Hispanic | 0 | 0.0% |
| Some other race, not Hispanic | 149 | 1.2% |
| Two or more races, not Hispanic | 546 | 4.4% |
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
- 12,366
- Citizen Voting Age Population (CVAP)
- 10,058
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 11,957 | 96.7% |
| Hispanic | 407 | 3.3% |
| White | 11,333 | 91.6% |
| Black | 190 | 1.5% |
| Asian | 55 | 0.4% |
| American Indian / Alaska Native | 33 | 0.3% |
| Native Hawaiian / Pacific Islander | 0 | 0.0% |
| Two or More Races | 10 | 0.1% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 9,711 | 96.6% |
| Hispanic | 347 | 3.4% |
| White | 9,183 | 91.3% |
| Black | 241 | 2.4% |
| Asian | 104 | 1.0% |
| American Indian / Alaska Native | 173 | 1.7% |
| Native Hawaiian / Pacific Islander | 1 | 0.0% |
| Two or More Races | 11 | 0.1% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
