Texas State House District 123

State Legislative District Profile (Lower Chamber)

Overview

District ID
tx-hd-123
State
Texas
Chamber
Lower chamber
District Code
123
Land Area
43.2 sq mi
Water Area
0.23 sq mi

Boundary

Boundary of Texas State House District 123

Boundary as GeoJSON

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

Counties

CountyOverlapShare of district landShare of county land
Bexar County43.22 sq mi100.0%3.5%

Showing all 1 county

Places

PlaceOverlapShare of district landShare of place land
San Antonio city40.65 sq mi94.1%8.1%
Castle Hills city2.47 sq mi5.7%100.0%
Balcones Heights city0.10 sq mi0.2%14.5%
Olmos Park city0.00 sq mi<0.1%0.1%

Showing all 4 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 3573,68137.4%9.6%33.9%
TX District 2165,93033.4%8.6%39.0%
TX District 2052,64626.7%6.9%23.6%
TX District 284,8662.5%0.6%3.5%

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

Voters

Registered Voters
115,247
Active Voters
107,859 (93.6%)

Party Registration

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

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2023–202468,042 (59.0%)10,217 (8.9%)8,431 (7.3%)
2021–202251,156 (44.4%)12,869 (11.2%)7,107 (6.2%)
2019–202065,734 (57.0%)20,470 (17.8%)6,067 (5.3%)
2017–201848,467 (42.1%)10,973 (9.5%)5,357 (4.6%)
2015–201647,886 (41.6%)13,215 (11.5%)9,110 (7.9%)
2013–201425,699 (22.3%)4,952 (4.3%)4,486 (3.9%)
2011–201238,319 (33.2%)4,143 (3.6%)4,433 (3.8%)

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
201,919 (± 5,298)
Median Age
36.9
Median Household Income
$57,146 (± $2,274)
High School Graduate or Higher (age 25+)
82.9%
Bachelor's Degree or Higher (age 25+)
29.7%

Population by Age

GroupPeopleShare
Under 1840,02919.8%
18 to 64133,24866.0%
65 and over28,64214.2%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)138,36268.5%
White, not Hispanic46,91023.2%
Black, not Hispanic7,7233.8%
Asian, not Hispanic2,7951.4%
American Indian / Alaska Native, not Hispanic4570.2%
Native Hawaiian / Pacific Islander, not Hispanic1100.1%
Some other race, not Hispanic8230.4%
Two or more races, not Hispanic4,7392.3%

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
179,274
Citizen Voting Age Population (CVAP)
141,282

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic61,60534.4%
Hispanic117,67165.6%
White47,66426.6%
Black7,6204.3%
Asian2,1221.2%
American Indian / Alaska Native4760.3%
Native Hawaiian / Pacific Islander1100.1%
Two or More Races6490.4%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic53,78238.1%
Hispanic87,50161.9%
White41,80729.6%
Black7,7635.5%
Asian2,5951.8%
American Indian / Alaska Native1,0780.8%
Native Hawaiian / Pacific Islander1110.1%
Two or More Races4530.3%

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