Montana State House District 30

State Legislative District Profile (Lower Chamber)

Overview

District ID
mt-hd-030
State
Montana
Chamber
Lower chamber
District Code
030
Land Area
1,669.7 sq mi
Water Area
12.7 sq mi

Boundary

Boundary of Montana State House District 30

Boundary as GeoJSON

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

Counties

CountyOverlapShare of district landShare of county land
Richland County1435.60 sq mi86.0%68.9%
Roosevelt County234.07 sq mi14.0%9.9%

Showing all 2 counties

Places

PlaceOverlapShare of district landShare of place land
Sidney city3.29 sq mi0.2%99.9%
Bainville town1.26 sq mi0.1%100.0%
Culbertson town1.02 sq mi0.1%91.8%
Fairview town0.80 sq mi<0.1%100.0%

Showing all 4 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 210,889100.0%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
7,254
Active Voters
5,794 (79.9%)

Party Registration

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

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2023–20245,189 (71.5%)0 (0.0%)0 (0.0%)
2021–20224,993 (68.8%)0 (0.0%)0 (0.0%)
2019–20205,508 (75.9%)0 (0.0%)0 (0.0%)
2017–20184,259 (58.7%)0 (0.0%)0 (0.0%)
2015–20163,903 (53.8%)0 (0.0%)0 (0.0%)
2013–20143,032 (41.8%)0 (0.0%)0 (0.0%)
2011–20122,916 (40.2%)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
10,557 (± 366)
Median Age
37.8
Median Household Income
$74,161 (± $13,970)
High School Graduate or Higher (age 25+)
95.5%
Bachelor's Degree or Higher (age 25+)
23.0%

Population by Age

GroupPeopleShare
Under 182,65025.1%
18 to 646,27059.4%
65 and over1,63715.5%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)6015.7%
White, not Hispanic9,00885.3%
Black, not Hispanic330.3%
Asian, not Hispanic370.4%
American Indian / Alaska Native, not Hispanic1251.2%
Native Hawaiian / Pacific Islander, not Hispanic610.6%
Some other race, not Hispanic160.2%
Two or more races, not Hispanic6766.4%

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
10,383
Citizen Voting Age Population (CVAP)
7,745

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic9,91595.5%
Hispanic4664.5%
White9,06187.3%
Black320.3%
Asian370.4%
American Indian / Alaska Native1221.2%
Native Hawaiian / Pacific Islander610.6%
Two or More Races1551.5%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic7,46996.4%
Hispanic2743.5%
White6,95089.7%
Black510.7%
Asian670.9%
American Indian / Alaska Native2232.9%
Native Hawaiian / Pacific Islander610.8%
Two or More Races1191.5%

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