Maryland 21st State Senate District, Maryland: Democratic loyalist district. In 2024, voted D+66%. Democratic peak: D+72 in 2020.
Key facts
- 2024 presidential margin
- D+66MIT Election Lab
- Political archetype
- Democratic loyalistAkashic typology
- Population
- 133,4022024 5-year
- Median household income
- $104,5062024 5-year
- White (non-Hispanic)
- 18.4%2024 5-year
- Black
- 54.0%2024 5-year
- Hispanic / Latino
- 21.1%2024 5-year
- Peak Democratic margin
- D+72 in 2020MIT Election Lab
Constituent county margins for State Senate District 21, MDOne 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.
5 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| D | 47,078 | 8,890 | 57,717 | ||
| D | 51,049 | 7,891 | 60,224 | ||
| D | 45,574 | 7,224 | 54,298 | ||
| D | 46,005 | 7,699 | 54,378 | ||
| D | 44,056 | 8,153 | 52,681 |
Demographics
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
4.0%
Irish
3.7%
English
3.2%
American
3.1%
Italian
1.8%
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: 38.6 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
$104,506
State Senate District 21 ranks near the middle of US counties.
State Senate District 21$104,506
Maryland$103,678
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
10.2%
Child poverty is below the national average.
Children under 1813.6%
Working age (18–64)9.2%
Seniors (65+)10.4%
Source · American Community Survey 5-year estimates, 2024 release.
Language at home
Population aged 5 and older
71.3%
speak English only
Spanish18.0%
Other languages4.6%
Other Indo-European3.8%
Asian & Pacific Islander2.3%
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 51.8% of residents not counted as adherents by any reporting body.
Maryland's 21st Senate District posts a modest Democratic lean by state standards, suggesting a competitive suburban electorate that has historically resisted the double-digit margins seen in neighboring urban districts.
The Democratic margin in Maryland 21st State Senate District reached its widest at seventy-two points in 2020. The margin in 2024 was sixty-six points — still decisive.
Its loyalty is rooted in its place. Median household income of $104,506, a 18% non-Hispanic-white share, and a population of 133,402 together describe a district whose political habits are deeply settled.
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
State Senate District 21, Maryland — The Long Memory. Akashic Intelligence — The Long Memory. https://tiers.akashic.app/sld-upper/24021/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Frequently asked questions
How did State Senate District 21, Maryland vote in 2024?
In 2024, State Senate District 21, Maryland voted Democratic by 66.2 points (D+66), carried by the Democratic candidate. Out of 57,717 votes cast, 47,078 went Democratic and 8,890 went Republican.
What is State Senate District 21, Maryland's political archetype?
Akashic classifies State Senate District 21, Maryland as a "Democratic loyalist" district based on its long-arc presidential voting pattern. Across 5 elections in the dataset, the district has voted Democratic 5 times, Republican 0 times, and other 0 times.
How many people live in State Senate District 21, Maryland?
State Senate District 21, Maryland has a population of 133,402 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, Maryland?
Median household income in State Senate District 21, Maryland is $104,506 — above the national median of $80,734. The Maryland state median is $103,678.
What is the political history of State Senate District 21, Maryland?
Akashic tracks 5 presidential elections in State Senate District 21, Maryland from 2008 to 2024. Of those, 5 went Democratic and 0 went Republican. The district's archetype — "Democratic loyalist" — captures the overall trajectory of that voting record.