Alabama 21st State Senate District, Alabama: Old Confederacy district. In 2024, voted R+21%. Democratic peak: D+88 in 1936.
Key facts
- 2024 presidential margin
- R+21MIT Election Lab
- Political archetype
- Old ConfederacyAkashic typology
- Population
- 100,9242024 5-year
- Median household income
- $62,5302024 5-year
- White (non-Hispanic)
- 59.3%2024 5-year
- Black
- 32.8%2024 5-year
- Hispanic / Latino
- 5.2%2024 5-year
- Peak Democratic margin
- D+88 in 1936MIT Election Lab
- Peak Republican margin
- R+74 in 1964MIT Election Lab
Constituent county margins for State Senate District 21, ALOne 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 | 14,945 | 23,017 | 38,413 | ||
| R | 17,090 | 23,282 | 40,870 | ||
| R | 14,963 | 21,970 | 37,629 | ||
| R | 15,544 | 20,954 | 36,805 | ||
| R | 15,942 | 21,145 | 37,373 | ||
| R | 13,066 | 20,007 | 33,295 | ||
| R | 12,660 | 16,072 | 29,341 | ||
| R | 11,999 | 12,990 | 26,590 | ||
| R | 11,913 | 13,134 | 28,237 | ||
| R | 9,393 | 13,331 | 22,815 | ||
| R | 9,145 | 14,399 | 23,776 | ||
| D | 11,114 | 10,416 | 22,271 | ||
| D | 10,791 | 8,512 | 19,590 | ||
| R | 4,795 | 11,397 | 16,488 | ||
| O | 3,356 | 1,644 | 16,144 | ||
| R | 0 | 7,992 | 10,827 | ||
| D | 4,692 | 3,214 | 7,997 | ||
| D | 4,492 | 2,721 | 7,598 | ||
| D | 4,175 | 2,245 | 6,497 | ||
| O | 0 | 319 | 3,411 | ||
| D | 3,191 | 411 | 3,627 | ||
| D | 3,888 | 287 | 4,192 | ||
| D | 3,751 | 222 | 3,991 | ||
| D | 3,320 | 232 | 3,655 | ||
| D | 1,986 | 1,053 | 3,039 | ||
| D | 1,862 | 217 | 2,148 | ||
| D | 2,608 | 433 | 3,071 | ||
| D | 2,022 | 293 | 2,356 | ||
| D | 1,401 | 52 | 1,614 | ||
| D | 1,414 | 125 | 1,659 | ||
| D | 1,352 | 151 | 1,613 | ||
| D | 1,203 | 428 | 1,781 | ||
| D | 2,954 | 545 | 3,627 | ||
| D | 2,684 | 328 | 4,493 | ||
| D | 2,092 | 383 | 2,486 | ||
| D | 1,699 | 310 | 2,022 | ||
| D | 2,203 | 493 | 2,697 | ||
| D | 2,913 | 390 | 3,303 |
Demographics
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
American
11.1%
English
10.0%
Irish
6.9%
German
5.2%
Italian
1.7%
Scottish
1.7%
French
1.2%
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: 34.5 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
$62,530
State Senate District 21 ranks near the middle of US counties.
State Senate District 21$62,530
Alabama$63,999
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
17.4%
Children face moderate poverty.
Children under 1821.0%
Working age (18–64)16.8%
Seniors (65+)11.9%
Source · American Community Survey 5-year estimates, 2024 release.
Language at home
Population aged 5 and older
94.0%
speak English only
Spanish3.7%
Other Indo-European1.3%
Asian & Pacific Islander0.7%
Other languages0.5%
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 47.0% of residents not counted as adherents by any reporting body.
District 21 recorded a 72-point Republican presidential margin in 2024, placing it among the most heavily one-sided state senate districts in Alabama. Turnout patterns and local candidate performance often track closely with statewide Republican nominees.
The shift began with civil rights. 1984 marked the realignment in Alabama 21st State Senate District, by a twenty-two points margin. The Republican margin reached its widest at seventy-four points in 1964. The 2024 margin was twenty-one points.
The political shift has tracked, in Alabama 21st State Senate District, the political shift of the South more broadly. A 59% non-Hispanic-white share, a median household income of $62,530, and a 17% poverty rate describe the demographic context.
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, Alabama. Akashic. https://akashic.app/sld-upper/01021/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Frequently asked questions
How did State Senate District 21, Alabama vote in 2024?
In 2024, State Senate District 21, Alabama voted Republican by 21.0 points (R+21), carried by the Republican candidate. Out of 38,413 votes cast, 14,945 went Democratic and 23,017 went Republican.
What is State Senate District 21, Alabama's political archetype?
Akashic classifies State Senate District 21, Alabama as a "Old Confederacy" district based on its long-arc presidential voting pattern. Across 38 elections in the dataset, the district has voted Democratic 23 times, Republican 13 times, and other 2 times.
When did State Senate District 21, Alabama last vote Democratic?
The most recent presidential election in which State Senate District 21, Alabama voted Democratic was 1980.
How many people live in State Senate District 21, Alabama?
State Senate District 21, Alabama has a population of 100,924 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, Alabama?
Median household income in State Senate District 21, Alabama is $62,530 — below the national median of $80,734. The Alabama state median is $63,999.
What is the political history of State Senate District 21, Alabama?
Akashic tracks 38 presidential elections in State Senate District 21, Alabama from 1876 to 2024. Of those, 23 went Democratic and 13 went Republican. The district's archetype — "Old Confederacy" — captures the overall trajectory of that voting record.