Overview
- District ID
- id-sd-013
- State
- Idaho
- Chamber
- Upper chamber (state senate)
- District Code
- 013
- Land Area
- 31.3 sq mi
- Water Area
- 0.12 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 | 31.27 sq mi | 100.0% | 5.3% |
Showing all 1 county
Places
| Place | Overlap | Share of district land | Share of place land |
|---|
| Nampa city | 12.04 sq mi | 38.5% | 33.5% |
Showing all 1 place
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 | 53,581 | 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
- 25,542
- Active Voters
- 25,542 (100.0%)
Party Registration
| Party | Voters | Share |
|---|
| Democratic | 2,918 | 11.4% |
| Republican | 15,650 | 61.3% |
| Unaffiliated | 6,575 | 25.7% |
| Other parties | 399 | 1.6% |
| No party recorded | 0 | 0.0% |
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2025–2026 | 5,683 (22.2%) | 0 (0.0%) | 0 (0.0%) |
| 2023–2024 | 22,902 (89.7%) | 0 (0.0%) | 0 (0.0%) |
| 2021–2022 | 16,784 (65.7%) | 0 (0.0%) | 0 (0.0%) |
| 2019–2020 | 17,309 (67.8%) | 1,928 (7.5%) | 5,518 (21.6%) |
| 2017–2018 | 11,889 (46.5%) | 493 (1.9%) | 3,615 (14.2%) |
| 2015–2016 | 12,496 (48.9%) | 187 (0.7%) | 4,508 (17.6%) |
| 2013–2014 | 7,428 (29.1%) | 166 (0.6%) | 2,535 (9.9%) |
| 2011–2012 | 9,519 (37.3%) | 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
- 55,824 (± 1,979)
- Median Age
- 34.5
- Median Household Income
- $75,870 (± $4,639)
- High School Graduate or Higher (age 25+)
- 88.7%
- Bachelor's Degree or Higher (age 25+)
- 23.5%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 13,262 | 23.8% |
| 18 to 64 | 34,736 | 62.2% |
| 65 and over | 7,826 | 14.0% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 12,543 | 22.5% |
| White, not Hispanic | 39,005 | 69.9% |
| Black, not Hispanic | 790 | 1.4% |
| Asian, not Hispanic | 436 | 0.8% |
| American Indian / Alaska Native, not Hispanic | 158 | 0.3% |
| Native Hawaiian / Pacific Islander, not Hispanic | 27 | 0.0% |
| Some other race, not Hispanic | 190 | 0.3% |
| Two or more races, not Hispanic | 2,675 | 4.8% |
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
- 53,422
- Citizen Voting Age Population (CVAP)
- 40,390
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 42,611 | 79.8% |
| Hispanic | 10,810 | 20.2% |
| White | 39,806 | 74.5% |
| Black | 702 | 1.3% |
| Asian | 401 | 0.8% |
| American Indian / Alaska Native | 156 | 0.3% |
| Native Hawaiian / Pacific Islander | 13 | 0.0% |
| Two or More Races | 148 | 0.3% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 33,342 | 82.6% |
| Hispanic | 7,046 | 17.4% |
| White | 31,463 | 77.9% |
| Black | 548 | 1.4% |
| Asian | 569 | 1.4% |
| American Indian / Alaska Native | 668 | 1.7% |
| Native Hawaiian / Pacific Islander | 13 | 0.0% |
| Two or More Races | 89 | 0.2% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
