Overview
- District ID
- id-sd-019
- State
- Idaho
- Chamber
- Upper chamber (state senate)
- District Code
- 019
- Land Area
- 95.9 sq mi
- Water Area
- 0.25 sq mi
Boundary
Boundary as GeoJSON
Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.
Counties
| County | Overlap | Share of district land | Share of county land |
|---|
| Ada County | 95.82 sq mi | 99.9% | 9.1% |
Showing all 1 county
Places
Showing all 4 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 2 | 52,334 | 100.0% | 5.7% | 100.0% |
Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).
Voters
- Registered Voters
- 37,850
- Active Voters
- 37,850 (100.0%)
Party Registration
| Party | Voters | Share |
|---|
| Democratic | 10,231 | 27.0% |
| Republican | 15,080 | 39.8% |
| Unaffiliated | 12,077 | 31.9% |
| Other parties | 462 | 1.2% |
| No party recorded | 0 | 0.0% |
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 14,455 (38.2%) | 0 (0.0%) | 0 (0.0%) |
| 2023–2024 | 33,381 (88.2%) | 0 (0.0%) | 0 (0.0%) |
| 2021–2022 | 24,398 (64.5%) | 0 (0.0%) | 0 (0.0%) |
| 2019–2020 | 27,388 (72.4%) | 9,594 (25.3%) | 3,879 (10.2%) |
| 2017–2018 | 20,981 (55.4%) | 3,517 (9.3%) | 4,378 (11.6%) |
| 2015–2016 | 19,695 (52.0%) | 1,680 (4.4%) | 3,581 (9.5%) |
| 2013–2014 | 13,662 (36.1%) | 1,673 (4.4%) | 2,089 (5.5%) |
| 2011–2012 | 15,334 (40.5%) | 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
- 54,013 (± 1,821)
- Median Age
- 43.5
- Median Household Income
- $95,000 (± $6,766)
- High School Graduate or Higher (age 25+)
- 97.5%
- Bachelor's Degree or Higher (age 25+)
- 60.8%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 10,137 | 18.8% |
| 18 to 64 | 34,781 | 64.4% |
| 65 and over | 9,095 | 16.8% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 3,074 | 5.7% |
| White, not Hispanic | 46,512 | 86.1% |
| Black, not Hispanic | 581 | 1.1% |
| Asian, not Hispanic | 1,177 | 2.2% |
| American Indian / Alaska Native, not Hispanic | 139 | 0.3% |
| Native Hawaiian / Pacific Islander, not Hispanic | 0 | 0.0% |
| Some other race, not Hispanic | 109 | 0.2% |
| Two or more races, not Hispanic | 2,421 | 4.5% |
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
- 52,684
- Citizen Voting Age Population (CVAP)
- 42,752
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 49,783 | 94.5% |
| Hispanic | 2,901 | 5.5% |
| White | 46,750 | 88.7% |
| Black | 407 | 0.8% |
| Asian | 743 | 1.4% |
| American Indian / Alaska Native | 138 | 0.3% |
| Native Hawaiian / Pacific Islander | 2 | 0.0% |
| Two or More Races | 285 | 0.5% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 40,524 | 94.8% |
| Hispanic | 2,225 | 5.2% |
| White | 38,215 | 89.4% |
| Black | 500 | 1.2% |
| Asian | 1,152 | 2.7% |
| American Indian / Alaska Native | 483 | 1.1% |
| Native Hawaiian / Pacific Islander | 0 | 0.0% |
| Two or More Races | 172 | 0.4% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
