Idaho State Senate District 33

State Legislative District Profile (Upper Chamber)

Overview

District ID
id-sd-033
State
Idaho
Chamber
Upper chamber (state senate)
District Code
033
Land Area
17.2 sq mi
Water Area
0.37 sq mi

Boundary

Boundary of Idaho State Senate District 33

Boundary as GeoJSON

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

Counties

CountyOverlapShare of district landShare of county land
Bonneville County17.24 sq mi100.0%0.9%

Showing all 1 county

Places

PlaceOverlapShare of district landShare of place land
Idaho Falls city15.05 sq mi87.3%55.4%

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
ID District 251,585100.0%5.6%100.0%

Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).

Voters

Registered Voters
23,669
Active Voters
23,669 (100.0%)

Party Registration

PartyVotersShare
Democratic2,77611.7%
Republican13,26056.0%
Unaffiliated7,23030.5%
Other parties4031.7%
No party recorded00.0%

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2025–20268,413 (35.5%)0 (0.0%)0 (0.0%)
2023–202420,465 (86.5%)0 (0.0%)0 (0.0%)
2021–202212,644 (53.4%)0 (0.0%)0 (0.0%)
2019–202016,643 (70.3%)2,010 (8.5%)4,860 (20.5%)
2017–201810,712 (45.3%)397 (1.7%)3,589 (15.2%)
2015–201611,521 (48.7%)143 (0.6%)4,445 (18.8%)
2013–20146,884 (29.1%)147 (0.6%)2,761 (11.7%)
2011–20128,737 (36.9%)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 01/12/2026. These are registered voters, separate from the Census population figures. Counts under 10 are suppressed and shown as "<10".

Demographics

Total Population
53,689 (± 1,194)
Median Age
32.7
Median Household Income
$67,095 (± $4,581)
High School Graduate or Higher (age 25+)
90.7%
Bachelor's Degree or Higher (age 25+)
28.9%

Population by Age

GroupPeopleShare
Under 1814,61627.2%
18 to 6431,90659.4%
65 and over7,16713.3%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)9,06716.9%
White, not Hispanic41,24176.8%
Black, not Hispanic2850.5%
Asian, not Hispanic2200.4%
American Indian / Alaska Native, not Hispanic3850.7%
Native Hawaiian / Pacific Islander, not Hispanic1420.3%
Some other race, not Hispanic830.2%
Two or more races, not Hispanic2,2664.2%

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
52,109
Citizen Voting Age Population (CVAP)
37,533

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic44,46785.3%
Hispanic7,64214.7%
White41,62579.9%
Black2750.5%
Asian1850.4%
American Indian / Alaska Native3850.7%
Native Hawaiian / Pacific Islander1440.3%
Two or More Races2800.5%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic33,36788.9%
Hispanic4,16611.1%
White31,59684.2%
Black4291.1%
Asian3991.1%
American Indian / Alaska Native7492.0%
Native Hawaiian / Pacific Islander180.0%
Two or More Races1770.5%

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