Overview
- District ID
- id-sd-016
- State
- Idaho
- Chamber
- Upper chamber (state senate)
- District Code
- 016
- Land Area
- 12.8 sq mi
- Water Area
- 0.39 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 | 12.82 sq mi | 100.0% | 1.2% |
Showing all 1 county
Places
Showing all 2 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 | 51,206 | 100.0% | 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
- 27,557
- Active Voters
- 27,557 (100.0%)
Party Registration
| Party | Voters | Share |
|---|
| Democratic | 6,859 | 24.9% |
| Republican | 10,817 | 39.3% |
| Unaffiliated | 9,464 | 34.3% |
| Other parties | 417 | 1.5% |
| No party recorded | 0 | 0.0% |
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 11,046 (40.1%) | 0 (0.0%) | 0 (0.0%) |
| 2023–2024 | 24,296 (88.2%) | 0 (0.0%) | 0 (0.0%) |
| 2021–2022 | 17,220 (62.5%) | 0 (0.0%) | 0 (0.0%) |
| 2019–2020 | 20,687 (75.1%) | 6,217 (22.6%) | 3,670 (13.3%) |
| 2017–2018 | 15,942 (57.9%) | 2,290 (8.3%) | 3,389 (12.3%) |
| 2015–2016 | 15,184 (55.1%) | 1,055 (3.8%) | 3,546 (12.9%) |
| 2013–2014 | 10,405 (37.8%) | 1,006 (3.7%) | 2,077 (7.5%) |
| 2011–2012 | 12,127 (44.0%) | 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
- 51,835 (± 1,848)
- Median Age
- 38.6
- Median Household Income
- $72,262 (± $3,706)
- High School Graduate or Higher (age 25+)
- 93.4%
- Bachelor's Degree or Higher (age 25+)
- 42.6%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 9,516 | 18.4% |
| 18 to 64 | 32,385 | 62.5% |
| 65 and over | 9,934 | 19.2% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 6,461 | 12.5% |
| White, not Hispanic | 41,148 | 79.4% |
| Black, not Hispanic | 982 | 1.9% |
| Asian, not Hispanic | 649 | 1.3% |
| American Indian / Alaska Native, not Hispanic | 95 | 0.2% |
| Native Hawaiian / Pacific Islander, not Hispanic | 64 | 0.1% |
| Some other race, not Hispanic | 160 | 0.3% |
| Two or more races, not Hispanic | 2,276 | 4.4% |
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
- 50,293
- Citizen Voting Age Population (CVAP)
- 41,061
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 44,340 | 88.2% |
| Hispanic | 5,951 | 11.8% |
| White | 41,625 | 82.8% |
| Black | 641 | 1.3% |
| Asian | 490 | 1.0% |
| American Indian / Alaska Native | 94 | 0.2% |
| Native Hawaiian / Pacific Islander | 59 | 0.1% |
| Two or More Races | 180 | 0.4% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 37,411 | 91.1% |
| Hispanic | 3,658 | 8.9% |
| White | 35,245 | 85.8% |
| Black | 566 | 1.4% |
| Asian | 903 | 2.2% |
| American Indian / Alaska Native | 525 | 1.3% |
| Native Hawaiian / Pacific Islander | 58 | 0.1% |
| Two or More Races | 126 | 0.3% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
