Montana State House District 12

State Legislative District Profile (Lower Chamber)

Overview

District ID
mt-hd-012
State
Montana
Chamber
Lower chamber
District Code
012
Land Area
375.5 sq mi
Water Area
148 sq mi

Boundary

Boundary of Montana State House District 12

Boundary as GeoJSON

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

Counties

CountyOverlapShare of district landShare of county land
Lake County342.54 sq mi91.2%23.0%
Flathead County32.95 sq mi8.8%0.6%

Showing all 2 counties

Places

PlaceOverlapShare of district landShare of place land
Bigfork CDP31.25 sq mi8.3%100.0%
Swan Lake CDP7.61 sq mi2.0%100.0%
Big Arm CDP5.42 sq mi1.4%100.0%
Finley Point CDP4.27 sq mi1.1%100.0%
Rollins CDP2.87 sq mi0.8%100.0%
Bear Dance CDP2.78 sq mi0.7%100.0%
Lindisfarne CDP2.58 sq mi0.7%100.0%
Woods Bay CDP1.36 sq mi0.4%100.0%
Lake Mary Ronan CDP1.05 sq mi0.3%100.0%
Dayton CDP0.55 sq mi0.1%100.0%
Niarada CDP0.50 sq mi0.1%1.0%
Elmo CDP0.32 sq mi0.1%99.9%
Kings Point CDP0.26 sq mi0.1%19.4%

Showing all 13 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 110,885100.0%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
9,677
Active Voters
8,115 (83.9%)

Party Registration

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

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2023–20247,565 (78.2%)0 (0.0%)0 (0.0%)
2021–20226,741 (69.7%)0 (0.0%)0 (0.0%)
2019–20207,070 (73.1%)0 (0.0%)0 (0.0%)
2017–20185,459 (56.4%)0 (0.0%)0 (0.0%)
2015–20164,890 (50.5%)0 (0.0%)0 (0.0%)
2013–20143,641 (37.6%)0 (0.0%)0 (0.0%)
2011–20123,942 (40.7%)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
11,732 (± 683)
Median Age
55.2
Median Household Income
$84,273 (± $8,451)
High School Graduate or Higher (age 25+)
97.0%
Bachelor's Degree or Higher (age 25+)
47.8%

Population by Age

GroupPeopleShare
Under 181,79415.3%
18 to 646,08851.9%
65 and over3,85032.8%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)5264.5%
White, not Hispanic9,71082.8%
Black, not Hispanic210.2%
Asian, not Hispanic430.4%
American Indian / Alaska Native, not Hispanic7706.6%
Native Hawaiian / Pacific Islander, not Hispanic510.4%
Some other race, not Hispanic1421.2%
Two or more races, not Hispanic4694.0%

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
11,591
Citizen Voting Age Population (CVAP)
9,797

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic11,09795.7%
Hispanic4964.3%
White9,83984.9%
Black240.2%
Asian410.4%
American Indian / Alaska Native7736.7%
Native Hawaiian / Pacific Islander540.5%
Two or More Races90.1%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic9,41996.1%
Hispanic3803.9%
White8,53287.1%
Black250.3%
Asian540.6%
American Indian / Alaska Native7737.9%
Native Hawaiian / Pacific Islander280.3%
Two or More Races90.1%

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