Texas State Senate District 12

State Legislative District Profile (Upper Chamber)

Overview

District ID
tx-sd-012
State
Texas
Chamber
Upper chamber (state senate)
District Code
012
Land Area
1,555.1 sq mi
Water Area
48.7 sq mi

Boundary

Boundary of Texas State Senate District 12

Boundary as GeoJSON

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

Counties

CountyOverlapShare of district landShare of county land
Wise County904.39 sq mi58.2%100.0%
Denton County501.05 sq mi32.2%57.0%
Dallas County99.69 sq mi6.4%11.4%
Tarrant County49.86 sq mi3.2%5.8%

Showing all 4 counties

Places

PlaceOverlapShare of district landShare of place land
Flower Mound town41.96 sq mi2.7%100.0%
Carrollton city35.63 sq mi2.3%97.2%
Dallas city33.84 sq mi2.2%10.0%
Grapevine city32.11 sq mi2.1%99.8%
Denton city25.19 sq mi1.6%26.0%
Fort Worth city19.13 sq mi1.2%5.4%
Northlake town17.66 sq mi1.1%89.7%
New Fairview city16.39 sq mi1.1%86.7%
Lewisville city16.05 sq mi1.0%39.5%
Coppell city14.42 sq mi0.9%100.0%
Colleyville city13.03 sq mi0.8%99.4%
Irving city12.34 sq mi0.8%18.4%
Farmers Branch city11.88 sq mi0.8%100.0%
Argyle city11.56 sq mi0.7%99.9%
Briar CDP9.49 sq mi0.6%46.7%
Decatur city8.78 sq mi0.6%94.4%
Bridgeport city7.84 sq mi0.5%99.8%
Bartonville town6.83 sq mi0.4%100.0%
Roanoke city6.69 sq mi0.4%97.1%
Oak Point city5.80 sq mi0.4%99.1%
Highland Village city5.53 sq mi0.4%100.0%
Hickory Creek town4.78 sq mi0.3%97.6%
Rhome city4.59 sq mi0.3%100.0%
Copper Canyon town4.58 sq mi0.3%98.4%
Addison town4.35 sq mi0.3%100.0%

Showing top 25 of 58 places

Overlapping Congressional Districts

Congressional districtPopulation in bothShare of this district's populationShare of the congressional district's populationShare of this district's land
TX District 26436,70445.4%56.9%51.1%
TX District 24284,36929.6%37.1%7.6%
TX District 32117,19612.2%15.3%1.2%
TX District 3384,6478.8%11.0%1.1%
TX District 1337,9764.0%5.0%39.0%
TX District 612<0.1%<0.1%<0.1%

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

Voters

Registered Voters
665,012
Active Voters
627,081 (94.3%)

Party Registration

This state's voter file does not record party registration.

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2023–2024468,670 (70.5%)36,017 (5.4%)110,577 (16.6%)
2021–2022343,031 (51.6%)32,248 (4.8%)85,973 (12.9%)
2019–2020426,595 (64.1%)71,436 (10.7%)75,364 (11.3%)
2017–2018312,138 (46.9%)30,055 (4.5%)58,965 (8.9%)
2015–2016308,024 (46.3%)31,978 (4.8%)112,863 (17.0%)
2013–2014156,047 (23.5%)8,559 (1.3%)48,418 (7.3%)
2011–2012243,720 (36.6%)4,907 (0.7%)42,666 (6.4%)

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 08/14/2025. These are registered voters, separate from the Census population figures. Counts under 10 are suppressed and shown as "<10".

Demographics

Total Population
989,746 (± 5,298)
Median Age
38.4
Median Household Income
$109,762 (± $1,732)
High School Graduate or Higher (age 25+)
93.2%
Bachelor's Degree or Higher (age 25+)
53.1%

Population by Age

GroupPeopleShare
Under 18227,67023.0%
18 to 64626,99463.3%
65 and over135,08213.6%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)209,08421.1%
White, not Hispanic533,36253.9%
Black, not Hispanic80,4608.1%
Asian, not Hispanic122,98312.4%
American Indian / Alaska Native, not Hispanic1,5660.2%
Native Hawaiian / Pacific Islander, not Hispanic1,1940.1%
Some other race, not Hispanic3,9150.4%
Two or more races, not Hispanic37,1823.8%

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
884,411
Citizen Voting Age Population (CVAP)
668,043

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic724,05081.9%
Hispanic160,36018.1%
White535,46760.5%
Black76,2808.6%
Asian82,4449.3%
American Indian / Alaska Native1,6030.2%
Native Hawaiian / Pacific Islander1,0560.1%
Two or More Races3,6030.4%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic566,67984.8%
Hispanic101,36315.2%
White431,09064.5%
Black64,9679.7%
Asian62,0919.3%
American Indian / Alaska Native6,8111.0%
Native Hawaiian / Pacific Islander6680.1%
Two or More Races2,1710.3%

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