TX-21 elected a Republican in 2024.

R+25.8 on 426,423 certified votes. Below: the 2024 result and this district's margin across every cycle on record.

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TX-21 — 2024 result

Source: MIT Election Data + Science Lab, US House returns (party-classified by literal ballot party).

Democratic (D)

153,765

36.1%

Republican (R)

263,744

61.9%

All others

8,914

2.1%

Margin

R+25.8

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Margin history

TX-21 across every cycle on record. Each year links to its district page.

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Year	Won	Margin	Votes
2024	R	−25.8%	426,423
2022	R	−25.7%	330,081
2020	R	−6.6%	453,750
2018	R	−2.6%	353,617
2016	R	−20.6%	356,031
2014	R	−71.8%	188,996
2012	R	−25.2%	308,865
2010	R	−41.0%	236,545
2008	R	−80.0%	304,350
2004	R	−26.0%	341,119
2002	R	−47.6%	222,093
2000	R	−53.7%	330,878
1998	R	−91.4%	180,608
1996	R	−54.0%	269,307
1994	R	−90.0%	184,075
1992	R	−48.4%	264,653
1990	R	−49.7%	193,155
1988	R	−93.2%	218,790
1986	R	−22.1%	165,567
1984	R	−61.2%	247,980
1982	R	−50.0%	142,872
1980	R	−53.7%	256,744
1978	R	−14.1%	147,837
1976	D	+44.3%	210,300