Texas 21st State House District, Texas: Populist district. In 2024, voted R+34%. Democratic peak: D+77 in 1936.
Key facts
- 2024 presidential margin
- R+34MIT Election Lab
- Political archetype
- PopulistAkashic typology
- Population
- 311,9312024 5-year
- Median household income
- $62,9782024 5-year
- White (non-Hispanic)
- 54.4%2024 5-year
- Black
- 24.3%2024 5-year
- Hispanic / Latino
- 18.3%2024 5-year
- Peak Democratic margin
- D+77 in 1936MIT Election Lab
- Peak Republican margin
- R+34 in 2024MIT Election Lab
Constituent county margins for State House District 21, TXOne cell per constituent county, colored by 2024 presidential margin from deep red (Republican) through neutral to deep blue (Democratic), ordered bluest first.
R+60D+60
One cell per constituent county. Ordered by 2024 D-vs-R margin (bluest first). Hover for county-level numbers.
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| R | 38,308 | 78,918 | 118,237 | ||
| R | 44,512 | 78,039 | 123,985 | ||
| R | 40,753 | 68,840 | 112,332 | ||
| R | 44,350 | 66,335 | 111,980 | ||
| R | 45,598 | 63,288 | 109,617 | ||
| R | 51,900 | 62,558 | 114,941 | ||
| R | 51,106 | 55,184 | 107,771 | ||
| D | 53,803 | 42,148 | 104,429 | ||
| D | 57,933 | 36,287 | 117,547 | ||
| D | 66,950 | 44,251 | 111,568 | ||
| D | 64,494 | 55,814 | 120,623 | ||
| D | 55,494 | 44,863 | 102,759 | ||
| D | 56,940 | 37,101 | 94,612 | ||
| R | 32,765 | 52,806 | 85,731 | ||
| D | 31,865 | 27,592 | 87,878 | ||
| D | 47,049 | 30,114 | 77,403 | ||
| D | 43,046 | 30,042 | 73,489 | ||
| R | 26,907 | 30,928 | 58,114 | ||
| D | 31,445 | 25,814 | 57,316 | ||
| D | 23,903 | 5,663 | 34,943 | ||
| D | 23,207 | 4,708 | 30,482 | ||
| D | 20,293 | 4,292 | 24,620 | ||
| D | 17,677 | 2,243 | 19,989 | ||
| D | 17,906 | 3,076 | 21,103 | ||
| R | 7,497 | 8,566 | 16,078 | ||
| D | 7,437 | 4,007 | 11,869 | ||
| D | 5,091 | 1,031 | 7,317 | ||
| D | 4,018 | 540 | 4,778 | ||
| D | 2,478 | 205 | 3,416 | ||
| — | — | — | — | ||
| — | — | — | — | ||
| — | — | — | — | ||
| — | — | — | — | ||
| — | — | — | — | ||
| — | — | — | — | ||
| — | — | — | — | ||
| — | — | — | — | ||
| — | — | — | — |
Demographics
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
English
7.2%
German
7.0%
Irish
6.8%
American
6.8%
French
6.0%
Italian
2.1%
Scottish
1.1%
Source · American Community Survey 5-year estimates, 2024 release. Hispanic/Latino is an ethnicity that overlaps the race categories, so these shares can total more than 100%. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.
Age distribution by sex
Median age: 38.0 in this county, 39.1 nationally
Male
Age
Female
85+
75–84
65–74
55–64
45–54
35–44
25–34
18–24
5–17
<5
Source · American Community Survey 5-year estimates, 2024 release.
Median household income
2024 inflation-adjusted dollars
$62,978
State House District 21 ranks near the middle of US counties.
State House District 21$62,978
Texas$78,476
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
17.7%
Children face moderate poverty.
Children under 1823.1%
Working age (18–64)16.2%
Seniors (65+)13.3%
Source · American Community Survey 5-year estimates, 2024 release.
Language at home
Population aged 5 and older
83.3%
speak English only
Spanish13.7%
Asian & Pacific Islander1.8%
Other Indo-European1.0%
Other languages0.3%
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 33.5% of residents not counted as adherents by any reporting body.
Texas 21st State House District sits in the Gulf South and Southern Plains. For most of the post-war period it was a Democratic district — its working-class profile gave it the same political habits as much of its region. That identity has shifted decisively in the last twenty years.
The Democratic margin in Texas 21st State House District peaked at seventy-seven points in 1936. By 2000 the district had flipped, voting Republican for the first time in many years. The 2024 margin was thirty-four points, the most Republican-leaning result in the district's modern history.
The economic context is the key. The median household income of $62,978 sits well below state and national norms, and 18% of residents live below the federal poverty line. The shift here is part of a broader realignment of working-class places across the country.
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
State House District 21, Texas. Akashic. https://akashic.app/sld-lower/48021/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Frequently asked questions
How did State House District 21, Texas vote in 2024?
In 2024, State House District 21, Texas voted Republican by 34.3 points (R+34), carried by the Republican candidate. Out of 118,237 votes cast, 38,308 went Democratic and 78,918 went Republican.
What is State House District 21, Texas's political archetype?
Akashic classifies State House District 21, Texas as a "Populist" district based on its long-arc presidential voting pattern. Across 38 elections in the dataset, the district has voted Democratic 19 times, Republican 10 times, and other 0 times.
When did State House District 21, Texas last vote Democratic?
The most recent presidential election in which State House District 21, Texas voted Democratic was 1996.
How many people live in State House District 21, Texas?
State House District 21, Texas has a population of 311,931 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in State House District 21, Texas?
Median household income in State House District 21, Texas is $62,978 — below the national median of $80,734. The Texas state median is $78,476.
What is the political history of State House District 21, Texas?
Akashic tracks 38 presidential elections in State House District 21, Texas from 1876 to 2024. Of those, 19 went Democratic and 10 went Republican. The district's archetype — "Populist" — captures the overall trajectory of that voting record.