Arizona State House District 12

State Legislative District Profile (Lower Chamber)

Overview

District ID
az-hd-012
State
Arizona
Chamber
Lower chamber
District Code
012
Land Area
128.7 sq mi
Water Area
0.55 sq mi

Boundary

Boundary of Arizona State House District 12

Boundary as GeoJSON

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

Counties

CountyOverlapShare of district landShare of county land
Maricopa County128.73 sq mi100.0%1.4%

Showing all 1 county

Places

PlaceOverlapShare of district landShare of place land
Phoenix city21.86 sq mi17.0%4.2%
Chandler city19.57 sq mi15.2%29.8%
Tempe city17.07 sq mi13.3%42.7%

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
AZ District 4238,71599.9%30.0%46.1%
AZ District 21800.1%<0.1%53.9%
AZ District 328<0.1%<0.1%<0.1%
AZ District 500.0%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
170,342
Active Voters
146,891 (86.2%)

Party Registration

PartyVotersShare
Democratic54,56132.0%
Republican49,67629.2%
Unaffiliated00.0%
Other parties9,0325.3%
No party recorded57,07333.5%

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2023–2024126,167 (74.1%)24,988 (14.7%)26,024 (15.3%)
2021–202296,232 (56.5%)26,246 (15.4%)25,550 (15.0%)
2019–2020116,142 (68.2%)427 (0.3%)231 (0.1%)
2017–201881,072 (47.6%)16,589 (9.7%)16,471 (9.7%)
2015–201682,716 (48.6%)9,839 (5.8%)13,927 (8.2%)

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 01/05/2026. These are registered voters, separate from the Census population figures. Counts under 10 are suppressed and shown as "<10".

Demographics

Total Population
243,790 (± 4,351)
Median Age
38.3
Median Household Income
$103,398 (± $2,196)
High School Graduate or Higher (age 25+)
95.9%
Bachelor's Degree or Higher (age 25+)
50.9%

Population by Age

GroupPeopleShare
Under 1849,28620.2%
18 to 64158,55365.0%
65 and over35,95114.7%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)47,02719.3%
White, not Hispanic144,56659.3%
Black, not Hispanic12,0975.0%
Asian, not Hispanic20,7388.5%
American Indian / Alaska Native, not Hispanic4,3421.8%
Native Hawaiian / Pacific Islander, not Hispanic7750.3%
Some other race, not Hispanic1,5430.6%
Two or more races, not Hispanic12,7025.2%

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
230,886
Citizen Voting Age Population (CVAP)
182,716

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic186,95081.0%
Hispanic43,93119.0%
White145,31962.9%
Black11,7945.1%
Asian14,4846.3%
American Indian / Alaska Native4,2901.9%
Native Hawaiian / Pacific Islander6730.3%
Two or More Races1,8460.8%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic152,17883.3%
Hispanic30,53816.7%
White122,06966.8%
Black11,2886.2%
Asian13,5487.4%
American Indian / Alaska Native4,3402.4%
Native Hawaiian / Pacific Islander4000.2%
Two or More Races7200.4%

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