Texas 21st State Senate District, Texas: Tossup district. In 2024, voted a near-tie. Democratic peak: D+78 in 1932.
Key facts
- 2024 presidential margin
- TiedMIT Election Lab
- Political archetype
- TossupAkashic typology
- Population
- 1,100,6962024 5-year
- Median household income
- $76,1922024 5-year
- White (non-Hispanic)
- 43.0%2024 5-year
- Black
- 4.7%2024 5-year
- Hispanic / Latino
- 61.3%2024 5-year
- Peak Democratic margin
- D+78 in 1932MIT Election Lab
- Peak Republican margin
- R+8 in 1972MIT Election Lab
Constituent county margins for State Senate 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 |
|---|---|---|---|---|---|
| D | 200,635 | 199,126 | 405,553 | ||
| D | 221,693 | 174,135 | 402,312 | ||
| D | 172,922 | 121,778 | 311,006 | ||
| D | 148,897 | 114,919 | 269,068 | ||
| D | 150,171 | 113,702 | 266,550 | ||
| R | 115,836 | 121,595 | 239,715 | ||
| R | 91,773 | 99,153 | 200,168 | ||
| D | 93,020 | 62,748 | 166,631 | ||
| D | 89,164 | 61,929 | 182,444 | ||
| D | 92,348 | 71,605 | 165,125 | ||
| R | 70,372 | 81,260 | 151,999 | ||
| D | 65,883 | 56,660 | 126,949 | ||
| D | 69,189 | 43,481 | 113,814 | ||
| R | 45,513 | 53,853 | 99,648 | ||
| D | 47,714 | 25,671 | 80,736 | ||
| D | 55,715 | 16,848 | 72,674 | ||
| D | 44,466 | 21,826 | 66,441 | ||
| D | 30,441 | 25,964 | 56,612 | ||
| D | 32,846 | 26,870 | 59,805 | ||
| D | 29,890 | 9,610 | 41,297 | ||
| D | 27,047 | 8,417 | 37,452 | ||
| D | 29,333 | 8,252 | 37,638 | ||
| D | 27,491 | 4,976 | 32,640 | ||
| D | 26,559 | 3,293 | 29,954 | ||
| D | 12,641 | 9,049 | 21,705 | ||
| D | 15,134 | 5,352 | 22,860 | ||
| D | 7,532 | 4,848 | 14,608 | ||
| D | 8,045 | 3,640 | 11,858 | ||
| D | 7,631 | 2,568 | 11,466 | ||
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Demographics
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
8.1%
English
5.8%
Irish
5.0%
American
3.0%
Italian
1.6%
French
1.1%
Polish
0.8%
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: 34.2 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
$76,192
State Senate District 21 ranks near the middle of US counties.
State Senate District 21$76,192
Texas$78,476
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
16.6%
Children face moderate poverty.
Children under 1821.0%
Working age (18–64)14.5%
Seniors (65+)18.7%
Source · American Community Survey 5-year estimates, 2024 release.
Language at home
Population aged 5 and older
51.4%
speak English only
Spanish45.1%
Asian & Pacific Islander1.5%
Other Indo-European1.4%
Other languages0.5%
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 45.7% of residents not counted as adherents by any reporting body.
Texas 21st State Senate District in the Gulf South and Southern Plains delivered a near-tie in 2024, with the Democratic candidate carrying the district by zero points — well within the historical noise of how the district votes.
The district's recent history is a story of close margins. The Democratic margin reached seventy-eight points in 1932; the Republican margin reached eight points in 1972. Most other elections have been decided by single-digit points.
Its demographics — a population of 1,100,696, a 43% non-Hispanic-white share, a median household income of $76,192 — situate the district close to national averages on several dimensions.
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 Senate District 21, Texas. Akashic. https://akashic.app/sld-upper/48021/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Frequently asked questions
How did State Senate District 21, Texas vote in 2024?
In 2024, State Senate District 21, Texas voted a near-tie (Tied), carried by the Democratic candidate. Out of 405,553 votes cast, 200,635 went Democratic and 199,126 went Republican.
What is State Senate District 21, Texas's political archetype?
Akashic classifies State Senate District 21, Texas as a "Tossup" district based on its long-arc presidential voting pattern. Across 38 elections in the dataset, the district has voted Democratic 25 times, Republican 4 times, and other 0 times.
When did State Senate District 21, Texas last vote Republican?
The most recent presidential election in which State Senate District 21, Texas voted Republican was 2004.
How many people live in State Senate District 21, Texas?
State Senate District 21, Texas has a population of 1,100,696 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in State Senate District 21, Texas?
Median household income in State Senate District 21, Texas is $76,192 — below the national median of $80,734. The Texas state median is $78,476.
What is the political history of State Senate District 21, Texas?
Akashic tracks 38 presidential elections in State Senate District 21, Texas from 1876 to 2024. Of those, 25 went Democratic and 4 went Republican. The district's archetype — "Tossup" — captures the overall trajectory of that voting record.