How did MD-HD-12B, Maryland vote in the 2024 presidential election?

MD-HD-12B, Maryland voted Democratic in 2024 with a margin of D+11.7. Kamala D Harris received 9,232 votes and Donald Trump received 7,258 out of 16,930 total votes cast, a 2.2-point shift toward Republicans from 2020.

What is MD-HD-12B, Maryland's political history?

MD-HD-12B, Maryland has 5 presidential elections on record, spanning 2008 to 2024. It has voted Democratic in every presidential election since 2008. The largest single-election swing was 10.4 points in 2016.

What are the demographics of MD-HD-12B, Maryland?

MD-HD-12B, Maryland has a population of 45,293 according to the 2020 Census. The racial composition is 49.7% non-Hispanic white, 13.8% Hispanic, 25.8% Black. About 23% of residents hold a bachelor's degree or higher. Median household income is $93,242.

Which places are most similar to MD-HD-12B, Maryland?

Based on demographic and electoral similarity analysis, the three most similar state house districts to MD-HD-12B, Maryland are Minnesota State House District 39A, Massachusetts State House District 155, Massachusetts State House District 157. Similarity is computed using a vector embedding of demographic, economic, and electoral characteristics.

Maryland House of Delegates District 12B

Maryland · Latest: 2024↓ R+2.2 vs 2020

45K residents

Ask Atlas Ask Historian Open in Explore CompareShare image

Presidential margin · 2008 → 2024

Full history

2008
D+6.7
Obama
2012
D+15.9
Obama
2016
D+5.5
Clinton
2020
D+13.8
Biden
2024
D+11.7
Harris

Who lives here

Full breakdown

White49.7%
Black25.8%
Hispanic13.8%

Economy & age

Population: 45K
Median age: 39.5
Median income: $93K; +$9K vs U.S.
College+: 23%; −12.3pp vs U.S.

Faith & language

Full detail

Catholic14.7%
Evangelical8.5%

79% English only21% Non-English

Similarity Explorer

Similar state house districts

Nearest neighbors matched on the same place-page feature set used across the dossier system.

8 visible matches

Minnesota State House District 39AMN

Urban Competitive

D+26.3

Similarity score95%

Massachusetts State House District 155MA

Urban Competitive

D+26.4

Similarity score95%

Massachusetts State House District 157MA

Urban Competitive

D+19.0

Similarity score94%

Maryland House of Delegates District 33AMD

Urban Competitive

D+35.7

Similarity score94%

Indiana State House District 89IN

Urban Competitive

D+6.3

Similarity score94%

Minnesota State House District 51BMN

Urban Competitive

D+29.1

Similarity score93%

Maryland House of Delegates District 38BMD

Urban Competitive

D+5.7

Similarity score93%

Kentucky State House District 46KY

Urban Competitive

D+10.1

Similarity score93%

Historian Query

Ask the Historian

Explore MD-HD-12B's political evolution with the Historian

“How has Maryland House of Delegates District 12B voted in presidential elections?”

Race & Ancestry

Who Lives Here

A race-first Census view with ancestry expansion where source coverage is strong enough to support detail.

MD-HD-12BCensus ACS 2024Ancestry detail available

Census race profile

Major Census race and ethnicity groups shown as a share of total population.

Expand rows for ancestry detail

White (Non-Hispanic) 49.7%Black 25.8%Hispanic 13.8%Multiracial 5.4%Asian 4.6%Native American 0.6%

Group	MD-HD-12B	State	National
▶White (Non-Hispanic)(13)	49.7%	46.6%	57.4%
▶Black / African American(10)	25.8%	29.4%	12.2%
▶Hispanic / Latino(16)	13.8%	12.5%	19.3%
Multiracial / Other	5.4%	4.5%	4.0%
▶Asian(6)	4.6%	6.6%	6.0%
▶Middle Eastern / North African(4)	1.1%	—	0.9%
▶Native American / Alaska Native(4)	0.6%	0.4%	0.9%
Native Hawaiian / Pacific Islander	0.1%	<0.1%	0.2%

Method notes

Census treats race and Hispanic/Latino origin as separate questions. Race categories other than Hispanic reflect total populations (small Hispanic overlap in Black, Asian, AIAN, NHPI). “Multiracial / Other” is derived as a non-overlapping remainder.

Click rows to expand ancestry detail. Ancestry from ACS B04006, B03001, B02020, B02016. Totals may differ from race — individuals can report multiple ancestries.

Black / African American (estimated remainder) is derived as Black population share minus reported Sub-Saharan African and West Indian ancestry. It is shown as an estimated ancestry detail, not a standalone Census ancestry category.

MENA estimated from ancestry reporting — Census does not have a separate MENA race category. Not shown in bar (overlaps with other race groups).

Who lives in Maryland House of Delegates District 12B? 45,293 residents as of the 2020 Census.

Demographic Comparison

Demographics

Read this geography's profile in three layers: local, state (where available), and national baseline.

MD-HD-12B vs Maryland vs National45K residents

23% of adults hold a bachelor's degree — 10pp below the national average. Places with similar education levels vote R+9 on average nationally.

Population & electorate

Scale, voting-age share, and this geography's footprint inside the national electorate.

Total population

Local vs state vs U.S.

45K

local

45KState 6.2MNational 334.9M

Share of U.S. population

Local vs state vs U.S.

0.01%

local

0.01%National 100%

Voting-age population

Local vs state vs U.S.

77.1%

local

77.1%State 75.8%National 75.7%

Economic profile

Income, attainment, and ownership indicators that often shape coalition structure and turnout behavior.

Median household income

Local vs state vs U.S.

$93,242

local

$93,242State $106,179National $83,960

Poverty rate

Local vs state vs U.S.

8.9%

local

8.9%State 9.5%National 12.5%

College degree

Local vs state vs U.S.

23.3%

local

23.3%State 43.5%National 35.6%

Homeownership

Local vs state vs U.S.

69.2%

local

69.2%State 67.6%National 65.2%

Community profile

Age structure, language use, and nativity signals that explain how this geography differs from state and nation.

Median age

Local vs state vs U.S.

39.5 yrs

local

39.5 yrsState 39.5 yrsNational 39.1 yrs

Age 18–29

Local vs state vs U.S.

16.9%

local

16.9%State 14.8%National 15.7%

Age 65+

Local vs state vs U.S.

14.3%

local

14.3%State 16.7%National 17.0%

Foreign born

Local vs state vs U.S.

13.8%

local

13.8%State 16.6%National 14.1%

Non-English at home

Local vs state vs U.S.

21.2%

local

21.2%State 21.1%National 22.2%

English only

Local vs state vs U.S.

78.8%

local

78.8%State 78.9%National 77.8%

Voter Turnout

Turnout in MD-HD-12B

Turnout % = votes cast ÷ voting-age population (VAP). Source: PL 94-171 2020 Census.

2024 Turnout

48.5%

vs Previous

-2.6pp

Voting-Age Pop

34,918

History

2008–2024

Contained geographies

Counties in MD-HD-12B

Counties that overlap MD-HD-12B.

Counties

(1)

Anne Arundel100%

Other Maryland State House Districts

140 total

Name	Margin ↓
MD-HD-25	D+85.1
MD-HD-43A	D+84.8
MD-HD-24	D+80.6
MD-HD-40	D+80.1
MD-HD-26	D+79.7
MD-HD-45	D+76.8
MD-HD-47A	D+74.2
MD-HD-23	D+71.5
MD-HD-20	D+71.0
MD-HD-22	D+70.5
MD-HD-41	D+65.7
MD-HD-16	D+63.7
MD-HD-47B	D+62.9
MD-HD-46	D+62.3
MD-HD-18	D+62.1
MD-HD-27A	D+60.1
MD-HD-11A	D+60.0
MD-HD-43B	D+56.8
MD-HD-10	D+55.5
MD-HD-21	D+55.3
MD-HD-44B	D+55.1
MD-HD-17	D+54.4
MD-HD-12A	D+49.9
MD-HD-13	D+49.9
MD-HD-19	D+48.2

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