Overview
- District ID
- id-sd-023
- State
- Idaho
- Chamber
- Upper chamber (state senate)
- District Code
- 023
- Land Area
- 8,437.8 sq mi
- Water Area
- 43.2 sq mi
Boundary
Boundary as GeoJSON
Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.
Counties
Showing all 3 counties
Places
Showing all 9 places
Overlapping Congressional Districts
| Congressional district | Population in both | Share of this district's population | Share of the congressional district's population | Share of this district's land |
|---|
| ID District 1 | 53,424 | 100.0% | 5.8% | 100.0% |
Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).
Voters
- Registered Voters
- 28,505
- Active Voters
- 28,505 (100.0%)
Party Registration
| Party | Voters | Share |
|---|
| Democratic | 2,203 | 7.7% |
| Republican | 19,821 | 69.5% |
| Unaffiliated | 6,050 | 21.2% |
| Other parties | 431 | 1.5% |
| No party recorded | 0 | 0.0% |
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 3,708 (13.0%) | 0 (0.0%) | 0 (0.0%) |
| 2023–2024 | 25,885 (90.8%) | 0 (0.0%) | 0 (0.0%) |
| 2021–2022 | 16,898 (59.3%) | 0 (0.0%) | 0 (0.0%) |
| 2019–2020 | 19,805 (69.5%) | 1,521 (5.3%) | 6,862 (24.1%) |
| 2017–2018 | 13,010 (45.6%) | 467 (1.6%) | 4,513 (15.8%) |
| 2015–2016 | 14,224 (49.9%) | 205 (0.7%) | 5,619 (19.7%) |
| 2013–2014 | 8,362 (29.3%) | 257 (0.9%) | 3,810 (13.4%) |
| 2011–2012 | 10,828 (38.0%) | 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
- 55,901 (± 1,711)
- Median Age
- 36.0
- Median Household Income
- $86,666 (± $2,477)
- High School Graduate or Higher (age 25+)
- 87.7%
- Bachelor's Degree or Higher (age 25+)
- 24.7%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 15,208 | 27.2% |
| 18 to 64 | 32,757 | 58.6% |
| 65 and over | 7,936 | 14.2% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 7,747 | 13.9% |
| White, not Hispanic | 44,932 | 80.4% |
| Black, not Hispanic | 263 | 0.5% |
| Asian, not Hispanic | 437 | 0.8% |
| American Indian / Alaska Native, not Hispanic | 348 | 0.6% |
| Native Hawaiian / Pacific Islander, not Hispanic | 190 | 0.3% |
| Some other race, not Hispanic | 143 | 0.3% |
| Two or more races, not Hispanic | 1,841 | 3.3% |
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
- 54,051
- Citizen Voting Age Population (CVAP)
- 38,930
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 48,018 | 88.8% |
| Hispanic | 6,040 | 11.2% |
| White | 45,473 | 84.1% |
| Black | 261 | 0.5% |
| Asian | 417 | 0.8% |
| American Indian / Alaska Native | 346 | 0.6% |
| Native Hawaiian / Pacific Islander | 160 | 0.3% |
| Two or More Races | 151 | 0.3% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 35,360 | 90.8% |
| Hispanic | 3,567 | 9.2% |
| White | 33,566 | 86.2% |
| Black | 256 | 0.7% |
| Asian | 453 | 1.2% |
| American Indian / Alaska Native | 853 | 2.2% |
| Native Hawaiian / Pacific Islander | 125 | 0.3% |
| Two or More Races | 101 | 0.3% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
