Texas State Senate District 20

State Legislative District Profile (Upper Chamber)

Overview

District ID
tx-sd-020
State
Texas
Chamber
Upper chamber (state senate)
District Code
020
Land Area
3,235.6 sq mi
Water Area
63.2 sq mi

Boundary

Boundary of Texas State Senate District 20

Boundary as GeoJSON

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

Counties

CountyOverlapShare of district landShare of county land
Hidalgo County1120.01 sq mi34.6%71.3%
Brooks County943.35 sq mi29.2%100.0%
Jim Wells County865.18 sq mi26.7%100.0%
Nueces County306.86 sq mi9.5%36.6%

Showing all 4 counties

Places

PlaceOverlapShare of district landShare of place land
Corpus Christi city100.93 sq mi3.1%60.6%
McAllen city62.31 sq mi1.9%99.9%
Linn CDP48.57 sq mi1.5%100.0%
Edinburg city44.72 sq mi1.4%96.0%
Mission city36.32 sq mi1.1%100.0%
Pharr city23.46 sq mi0.7%97.1%
Robstown city12.99 sq mi0.4%100.0%
Ben Bolt CDP12.24 sq mi0.4%100.0%
Alice city11.99 sq mi0.4%100.0%
Penitas city9.36 sq mi0.3%100.0%
Hidalgo city8.35 sq mi0.3%100.0%
Sandy Hollow-Escondidas CDP7.86 sq mi0.2%100.0%
Palmview city7.58 sq mi0.2%100.0%
Alton city7.31 sq mi0.2%96.2%
La Paloma-Lost Creek CDP6.82 sq mi0.2%81.1%
Encino CDP6.71 sq mi0.2%100.0%
La Homa CDP6.31 sq mi0.2%100.0%
Alice Acres CDP5.89 sq mi0.2%100.0%
Loma Linda East CDP5.14 sq mi0.2%100.0%
Coyote Acres CDP5.13 sq mi0.2%100.0%
Palmhurst city4.45 sq mi0.1%100.0%
Doffing CDP4.33 sq mi0.1%100.0%
Doolittle CDP4.28 sq mi0.1%100.0%
La Joya city4.21 sq mi0.1%100.0%
Westdale CDP4.03 sq mi0.1%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 15589,23964.0%76.8%90.1%
TX District 27286,33831.1%37.3%9.5%
TX District 3444,5714.8%5.8%0.5%

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

Voters

Registered Voters
497,698
Active Voters
473,169 (95.1%)

Party Registration

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

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2023–2024255,450 (51.3%)43,722 (8.8%)29,691 (6.0%)
2021–2022172,741 (34.7%)45,681 (9.2%)24,988 (5.0%)
2019–2020242,956 (48.8%)67,002 (13.5%)19,784 (4.0%)
2017–2018167,824 (33.7%)45,816 (9.2%)13,364 (2.7%)
2015–2016180,804 (36.3%)55,658 (11.2%)29,268 (5.9%)
2013–201482,965 (16.7%)36,762 (7.4%)10,403 (2.1%)
2011–2012135,983 (27.3%)33,529 (6.7%)10,643 (2.1%)

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
932,859 (± 5,814)
Median Age
32.9
Median Household Income
$58,508 (± $1,040)
High School Graduate or Higher (age 25+)
76.8%
Bachelor's Degree or Higher (age 25+)
22.7%

Population by Age

GroupPeopleShare
Under 18260,00627.9%
18 to 64548,29658.8%
65 and over124,55713.4%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)773,64082.9%
White, not Hispanic119,15712.8%
Black, not Hispanic15,0481.6%
Asian, not Hispanic14,8811.6%
American Indian / Alaska Native, not Hispanic9070.1%
Native Hawaiian / Pacific Islander, not Hispanic4320.0%
Some other race, not Hispanic1,6690.2%
Two or more races, not Hispanic7,1250.8%

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
808,947
Citizen Voting Age Population (CVAP)
556,962

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic153,42019.0%
Hispanic655,52681.0%
White120,73814.9%
Black15,1541.9%
Asian11,1091.4%
American Indian / Alaska Native8880.1%
Native Hawaiian / Pacific Islander4630.1%
Two or More Races4240.1%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic124,76322.4%
Hispanic432,19777.6%
White100,63218.1%
Black12,1202.2%
Asian9,2211.7%
American Indian / Alaska Native2,0750.4%
Native Hawaiian / Pacific Islander4300.1%
Two or More Races3120.1%

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