Montana State Senate District 3

State Legislative District Profile (Upper Chamber)

Overview

District ID
mt-sd-003
State
Montana
Chamber
Upper chamber (state senate)
District Code
003
Land Area
445 sq mi
Water Area
6.68 sq mi

Boundary

Boundary of Montana State Senate District 3

Boundary as GeoJSON

Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.

Counties

CountyOverlapShare of district landShare of county land
Flathead County444.99 sq mi100.0%8.7%

Showing all 1 county

Places

PlaceOverlapShare of district landShare of place land
Helena Flats CDP8.44 sq mi1.9%100.0%
Kalispell city4.96 sq mi1.1%38.4%
Coram CDP3.71 sq mi0.8%100.0%
Martin City CDP1.73 sq mi0.4%100.0%
Hungry Horse CDP1.43 sq mi0.3%100.0%
Rhodes CDP0.67 sq mi0.2%100.0%

Showing all 6 places

Overlapping Congressional Districts

Congressional districtPopulation in bothShare of this district's populationShare of the congressional district's populationShare of this district's land
MT District 121,836100.0%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
18,193
Active Voters
15,133 (83.2%)

Party Registration

This state's voter file does not record party registration.

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2023–202413,997 (76.9%)0 (0.0%)0 (0.0%)
2021–202210,757 (59.1%)0 (0.0%)0 (0.0%)
2019–202012,991 (71.4%)0 (0.0%)0 (0.0%)
2017–20189,949 (54.7%)0 (0.0%)0 (0.0%)
2015–20168,846 (48.6%)0 (0.0%)0 (0.0%)
2013–20146,161 (33.9%)0 (0.0%)0 (0.0%)
2011–20127,258 (39.9%)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
21,326 (± 1,278)
Median Age
44.3
Median Household Income
$75,198 (± $3,249)
High School Graduate or Higher (age 25+)
95.9%
Bachelor's Degree or Higher (age 25+)
36.4%

Population by Age

GroupPeopleShare
Under 184,61821.7%
18 to 6411,88855.7%
65 and over4,82022.6%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)8774.1%
White, not Hispanic19,08589.5%
Black, not Hispanic550.3%
Asian, not Hispanic2471.2%
American Indian / Alaska Native, not Hispanic2491.2%
Native Hawaiian / Pacific Islander, not Hispanic00.0%
Some other race, not Hispanic320.2%
Two or more races, not Hispanic7813.7%

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
21,126
Citizen Voting Age Population (CVAP)
16,509

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic20,30696.1%
Hispanic8173.9%
White19,29591.3%
Black610.3%
Asian1760.8%
American Indian / Alaska Native2461.2%
Native Hawaiian / Pacific Islander00.0%
Two or More Races210.1%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic16,04297.2%
Hispanic4672.8%
White15,37993.2%
Black940.6%
Asian1681.0%
American Indian / Alaska Native3952.4%
Native Hawaiian / Pacific Islander00.0%
Two or More Races140.1%

Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).