Overview
- District ID
- tx-hd-121
- State
- Texas
- Chamber
- Lower chamber
- District Code
- 121
- Land Area
- 102.6 sq mi
- Water Area
- 0.3 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 |
|---|
| Bexar County | 102.57 sq mi | 100.0% | 8.3% |
Showing all 1 county
Places
Showing all 7 places
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 |
|---|
| TX District 21 | 178,922 | 88.0% | 23.3% | 91.4% |
| TX District 23 | 14,643 | 7.2% | 1.9% | 6.0% |
| TX District 35 | 9,644 | 4.7% | 1.3% | 2.7% |
Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).
Voters
- Registered Voters
- 143,603
- Active Voters
- 136,007 (94.7%)
Party Registration
This state's voter file does not record party registration.
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2023–2024 | 101,237 (70.5%) | 9,702 (6.8%) | 23,135 (16.1%) |
| 2021–2022 | 76,310 (53.1%) | 11,402 (7.9%) | 17,243 (12.0%) |
| 2019–2020 | 94,832 (66.0%) | 19,471 (13.6%) | 13,614 (9.5%) |
| 2017–2018 | 69,014 (48.1%) | 9,355 (6.5%) | 13,533 (9.4%) |
| 2015–2016 | 68,710 (47.8%) | 9,953 (6.9%) | 23,101 (16.1%) |
| 2013–2014 | 37,621 (26.2%) | 3,736 (2.6%) | 11,413 (7.9%) |
| 2011–2012 | 56,115 (39.1%) | 2,847 (2.0%) | 11,738 (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 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
- 206,796 (± 5,990)
- Median Age
- 38.4
- Median Household Income
- $98,047 (± $3,122)
- High School Graduate or Higher (age 25+)
- 95.6%
- Bachelor's Degree or Higher (age 25+)
- 52.0%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 49,478 | 23.9% |
| 18 to 64 | 125,311 | 60.6% |
| 65 and over | 32,007 | 15.5% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 80,913 | 39.1% |
| White, not Hispanic | 97,673 | 47.2% |
| Black, not Hispanic | 10,613 | 5.1% |
| Asian, not Hispanic | 7,976 | 3.9% |
| American Indian / Alaska Native, not Hispanic | 135 | 0.1% |
| Native Hawaiian / Pacific Islander, not Hispanic | 159 | 0.1% |
| Some other race, not Hispanic | 1,897 | 0.9% |
| Two or more races, not Hispanic | 7,430 | 3.6% |
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
- 196,061
- Citizen Voting Age Population (CVAP)
- 147,546
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 122,752 | 62.6% |
| Hispanic | 73,312 | 37.4% |
| White | 98,889 | 50.4% |
| Black | 11,373 | 5.8% |
| Asian | 6,191 | 3.2% |
| American Indian / Alaska Native | 130 | 0.1% |
| Native Hawaiian / Pacific Islander | 159 | 0.1% |
| Two or More Races | 451 | 0.2% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 96,513 | 65.4% |
| Hispanic | 51,028 | 34.6% |
| White | 79,417 | 53.8% |
| Black | 9,959 | 6.7% |
| Asian | 5,685 | 3.9% |
| American Indian / Alaska Native | 1,053 | 0.7% |
| Native Hawaiian / Pacific Islander | 114 | 0.1% |
| Two or More Races | 374 | 0.3% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
