Overview
- District ID
- id-sd-011
- State
- Idaho
- Chamber
- Upper chamber (state senate)
- District Code
- 011
- Land Area
- 21.9 sq mi
- Water Area
- 0.3 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 |
|---|
| Canyon County | 21.86 sq mi | 100.0% | 3.7% |
Showing all 1 county
Places
| Place | Overlap | Share of district land | Share of place land |
|---|
| Caldwell city | 15.94 sq mi | 72.9% | 63.4% |
| Nampa city | 0.08 sq mi | 0.4% | 0.2% |
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 1 | 53,483 | 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
- 20,781
- Active Voters
- 20,781 (100.0%)
Party Registration
| Party | Voters | Share |
|---|
| Democratic | 3,022 | 14.5% |
| Republican | 11,616 | 55.9% |
| Unaffiliated | 5,800 | 27.9% |
| Other parties | 343 | 1.7% |
| No party recorded | 0 | 0.0% |
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 5,471 (26.3%) | 0 (0.0%) | 0 (0.0%) |
| 2023–2024 | 18,140 (87.3%) | 0 (0.0%) | 0 (0.0%) |
| 2021–2022 | 13,491 (64.9%) | 0 (0.0%) | 0 (0.0%) |
| 2019–2020 | 13,304 (64.0%) | 1,673 (8.1%) | 3,715 (17.9%) |
| 2017–2018 | 8,775 (42.2%) | 467 (2.2%) | 2,349 (11.3%) |
| 2015–2016 | 9,172 (44.1%) | 214 (1.0%) | 3,068 (14.8%) |
| 2013–2014 | 5,257 (25.3%) | 178 (0.9%) | 1,690 (8.1%) |
| 2011–2012 | 6,620 (31.9%) | 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
- 54,142 (± 1,874)
- Median Age
- 32.4
- Median Household Income
- $70,477 (± $2,657)
- High School Graduate or Higher (age 25+)
- 81.5%
- Bachelor's Degree or Higher (age 25+)
- 16.2%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 15,382 | 28.4% |
| 18 to 64 | 32,689 | 60.4% |
| 65 and over | 6,071 | 11.2% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 21,633 | 40.0% |
| White, not Hispanic | 28,466 | 52.6% |
| Black, not Hispanic | 159 | 0.3% |
| Asian, not Hispanic | 543 | 1.0% |
| American Indian / Alaska Native, not Hispanic | 205 | 0.4% |
| Native Hawaiian / Pacific Islander, not Hispanic | 184 | 0.3% |
| Some other race, not Hispanic | 468 | 0.9% |
| Two or more races, not Hispanic | 2,484 | 4.6% |
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
- 49,476
- Citizen Voting Age Population (CVAP)
- 34,372
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 31,785 | 64.2% |
| Hispanic | 17,691 | 35.8% |
| White | 28,982 | 58.6% |
| Black | 87 | 0.2% |
| Asian | 481 | 1.0% |
| American Indian / Alaska Native | 208 | 0.4% |
| Native Hawaiian / Pacific Islander | 152 | 0.3% |
| Two or More Races | 454 | 0.9% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 24,364 | 70.9% |
| Hispanic | 10,009 | 29.1% |
| White | 22,423 | 65.2% |
| Black | 183 | 0.5% |
| Asian | 671 | 2.0% |
| American Indian / Alaska Native | 679 | 2.0% |
| Native Hawaiian / Pacific Islander | 101 | 0.3% |
| Two or More Races | 299 | 0.9% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
