Texas Congressional District 20

Voters

Registered Voters: 424,634
Active Voters: 398,252 (93.8%)

Party Registration

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

Turnout by Cycle

Cycle	General	Democratic Primary	Republican Primary
2023–2024	224,416 (52.8%)	30,845 (7.3%)	18,793 (4.4%)
2021–2022	152,072 (35.8%)	37,725 (8.9%)	16,040 (3.8%)
2019–2020	214,820 (50.6%)	57,783 (13.6%)	13,870 (3.3%)
2017–2018	144,209 (34.0%)	29,430 (6.9%)	9,940 (2.3%)
2015–2016	147,702 (34.8%)	40,020 (9.4%)	19,433 (4.6%)
2013–2014	67,710 (15.9%)	14,270 (3.4%)	7,567 (1.8%)
2011–2012	115,012 (27.1%)	12,912 (3.0%)	7,319 (1.7%)

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.

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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 Citizen Population: 708,671
Citizen Voting Age Population (CVAP): 522,423

Citizen Population by Race/Ethnicity

Group	Citizens	Share
Non-Hispanic	211,189	29.8%
Hispanic	497,481	70.2%
White	134,684	19.0%
Black	45,164	6.4%
Asian	14,083	2.0%
American Indian / Alaska Native	940	0.1%
Native Hawaiian / Pacific Islander	505	0.1%
Two or More Races	2,867	0.4%

Citizen Voting Age Population by Race/Ethnicity

Group	CVAP	Share
Non-Hispanic	168,851	32.3%
Hispanic	353,571	67.7%
White	112,056	21.4%
Black	37,991	7.3%
Asian	13,826	2.6%
American Indian / Alaska Native	3,023	0.6%
Native Hawaiian / Pacific Islander	458	0.1%
Two or More Races	1,881	0.4%

Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation.