Idaho State House District 15

State Legislative District Profile (Lower Chamber)

Overview

District ID
id-hd-015
State
Idaho
Chamber
Lower chamber
District Code
015
Land Area
13.4 sq mi
Water Area
0.05 sq mi

Boundary

Boundary of Idaho State House District 15

Boundary as GeoJSON

Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.

Counties

CountyOverlapShare of district landShare of county land
Ada County13.43 sq mi100.0%1.3%

Showing all 1 county

Places

PlaceOverlapShare of district landShare of place land
Boise City city11.41 sq mi85.0%13.4%
Meridian city1.73 sq mi12.9%4.7%
Garden City city0.04 sq mi0.3%1.0%

Showing all 3 places

Overlapping Congressional Districts

Congressional districtPopulation in bothShare of this district's populationShare of the congressional district's populationShare of this district's land
ID District 252,475100.0%5.7%100.0%
ID District 100.0%0.0%<0.1%

Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).

Voters

Registered Voters
28,292
Active Voters
28,292 (100.0%)

Party Registration

PartyVotersShare
Democratic5,26718.6%
Republican13,50147.7%
Unaffiliated9,10832.2%
Other parties4161.5%
No party recorded00.0%

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2025–20268,073 (28.5%)0 (0.0%)0 (0.0%)
2023–202425,296 (89.4%)0 (0.0%)0 (0.0%)
2021–202217,892 (63.2%)0 (0.0%)0 (0.0%)
2019–202021,342 (75.4%)4,230 (15.0%)5,170 (18.3%)
2017–201816,028 (56.7%)1,435 (5.1%)4,297 (15.2%)
2015–201615,681 (55.4%)662 (2.3%)4,743 (16.8%)
2013–201410,332 (36.5%)480 (1.7%)2,783 (9.8%)
2011–201212,569 (44.4%)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
52,678 (± 2,556)
Median Age
40.4
Median Household Income
$83,451 (± $4,556)
High School Graduate or Higher (age 25+)
95.2%
Bachelor's Degree or Higher (age 25+)
38.1%

Population by Age

GroupPeopleShare
Under 1811,72122.3%
18 to 6431,46959.7%
65 and over9,48818.0%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)5,42910.3%
White, not Hispanic41,42378.6%
Black, not Hispanic3570.7%
Asian, not Hispanic2,1234.0%
American Indian / Alaska Native, not Hispanic830.2%
Native Hawaiian / Pacific Islander, not Hispanic510.1%
Some other race, not Hispanic1250.2%
Two or more races, not Hispanic3,0875.9%

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
50,545
Citizen Voting Age Population (CVAP)
39,189

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic45,87390.8%
Hispanic4,6759.2%
White42,18783.5%
Black2830.6%
Asian1,2972.6%
American Indian / Alaska Native850.2%
Native Hawaiian / Pacific Islander510.1%
Two or More Races5851.2%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic36,65093.5%
Hispanic2,5396.5%
White34,05386.9%
Black3650.9%
Asian1,4693.7%
American Indian / Alaska Native3520.9%
Native Hawaiian / Pacific Islander500.1%
Two or More Races3570.9%

Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).