Montana State House District 51

State Legislative District Profile (Lower Chamber)

Overview

District ID
mt-hd-051
State
Montana
Chamber
Lower chamber
District Code
051
Land Area
3.19 sq mi
Water Area
0 sq mi

Boundary

Boundary of Montana State House District 51

Boundary as GeoJSON

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

Counties

CountyOverlapShare of district landShare of county land
Yellowstone County3.19 sq mi100.0%0.1%

Showing all 1 county

Places

PlaceOverlapShare of district landShare of place land
Billings city2.55 sq mi80.1%5.5%

Showing all 1 place

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 210,799100.0%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
7,174
Active Voters
6,186 (86.2%)

Party Registration

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

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2023–20245,713 (79.6%)0 (0.0%)0 (0.0%)
2021–20225,787 (80.7%)0 (0.0%)0 (0.0%)
2019–20205,613 (78.2%)0 (0.0%)0 (0.0%)
2017–20184,944 (68.9%)0 (0.0%)0 (0.0%)
2015–20164,438 (61.9%)0 (0.0%)0 (0.0%)
2013–20144,142 (57.7%)0 (0.0%)0 (0.0%)
2011–20123,897 (54.3%)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
9,753 (± 865)
Median Age
44.3
Median Household Income
$62,127 (± $5,695)
High School Graduate or Higher (age 25+)
96.7%
Bachelor's Degree or Higher (age 25+)
39.5%

Population by Age

GroupPeopleShare
Under 181,72317.7%
18 to 645,41055.5%
65 and over2,62026.9%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)3994.1%
White, not Hispanic8,82290.5%
Black, not Hispanic00.0%
Asian, not Hispanic1041.1%
American Indian / Alaska Native, not Hispanic840.9%
Native Hawaiian / Pacific Islander, not Hispanic00.0%
Some other race, not Hispanic440.5%
Two or more races, not Hispanic3003.1%

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
9,739
Citizen Voting Age Population (CVAP)
8,016

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic9,34596.0%
Hispanic3954.1%
White9,08093.2%
Black40.0%
Asian941.0%
American Indian / Alaska Native830.9%
Native Hawaiian / Pacific Islander00.0%
Two or More Races80.1%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic7,80397.3%
Hispanic2142.7%
White7,60494.9%
Black00.0%
Asian951.2%
American Indian / Alaska Native981.2%
Native Hawaiian / Pacific Islander50.1%
Two or More Races60.1%

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