congressional districtMaryland 3rd Congressional District
presidential margin
2004–2024 · Democratic minus Republican
2004R+5.0
2008D+6.5
2012D+7.6
2016D+13.7
2020D+25.7
2024D+23.7
net swing · 2004→2024D+28.8R+5.0 → D+23.7
vs. U.S. · 2024D+25.2D+23.7 vs R+1.5
presidential returns
2024 turnout 73.4% of 563,313 citizens 18+
Year
Democrat
Republican
Others
Total
CVAP
Turnout
2024
249,576
151,404
12,404
413,384
563,313
73.4%
2020
255,298
149,781
6,097
411,176
540,700†
76.0%
2016
197,872
147,078
26,999
371,949
516,932†
72.0%
2012
185,488
158,662
9,176
353,326
487,638†
72.5%
2008
179,251
157,181
5,338
341,770
465,748†
73.4%
2004
148,353
164,217
4,174
316,744
443,857†
71.4%
† Citizen voting-age population estimated for prior cycles from the constituent-county ACS trend anchored to the current figure. Source: ACS 5-year, table B05003.
——
D+60R+60
20042024
District by 2024 margin · Precinct returns · VEST · MIT Election Lab
People and households
Who lives here
Exact values for this place, its state, and the United States.
Race · ethnicity · ancestry
Communities and origins
GroupMD-3MarylandUnited States
German14.4%11.4%12.5%
Irish12.6%9.3%9.4%
English11.5%8.5%9.5%
Italian6.1%4.4%4.8%
American3.9%4.1%5.3%
Polish3.5%2.6%2.2%
Scottish2.0%1.1%1.3%
French0.8%1.1%1.6%
African American†13.5%23.6%9.9%
Nigerian1.1%1.1%0.2%
African0.8%1.2%0.5%
Jamaican0.5%0.7%0.4%
Ethiopian0.5%0.7%—
Ghanaian0.3%0.3%—
Guyanese0.2%——
Asian Indian3.4%1.7%1.4%
Chinese2.1%1.3%1.3%
Korean2.1%0.8%0.4%
Filipino0.8%0.9%0.9%
Pakistani0.7%0.3%—
Vietnamese0.5%0.4%0.6%
Bangladeshi0.2%——
Nepalese0.2%0.2%—
Mexican1.8%2.0%11.3%
Salvadoran1.7%3.5%0.7%
Puerto Rican1.4%1.2%1.8%
Guatemalan0.6%1.2%0.5%
Honduran0.6%0.7%0.3%
Colombian0.4%0.4%0.4%
Cuban0.3%—0.7%
Peruvian0.2%0.3%—
Hispanic or Latino counts residents of any race; the race groups count only their non-Hispanic residents, so the groups are mutually exclusive and sum to 100%. Expand a row to see ancestries reported within that group.
Age and life stage
Measure
MD-3
Maryland
United States
Median age
39.8
39.5
39.1
Age 18–24
8.1%
8.5%
9.2%
Age 65 and older
15.7%
16.6%
17.2%
Household economy
Measure
MD-3
Maryland
United States
Median household income
$133,046
$103,678
$84,427
Poverty rate
5.6%
9.5%
12.5%
Bachelor's degree or higher (25+)
55.1%
43.5%
35.6%
Languages at home
Measure
MD-3
Maryland
United States
Speaks a non-English language at home
21.0%
21.1%
22.3%
Spanish
6.4%
9.6%
13.6%
Other Indo-European
3.6%
2.5%
2.0%
Korean
1.9%
0.6%
0.3%
Chinese (incl. Mandarin & Cantonese)
2.0%
1.2%
1.1%
Religious landscape
Measure
MD-3
Maryland
United States
Catholic
—
14.7%
18.6%
Evangelical Protestant
—
11.2%
16.5%
Unclaimed / not counted
—
56.6%
51.5%
American Community Survey 2024 5-year (CVAP, income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024 · 2020 U.S. Religion Census (ASARB) — congregational adherents; unclaimed is the residual not counted by congregations.
Maryland 3rd Congressional District
presidential history
Presidential margin, 2004–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2004
−5.0%
2008
+6.5%
2012
+7.6%
2016
+13.7%
2020
+25.7%
2024
+23.7%
DemocraticRepublican
6 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024). Swing · margin change from the prior cycle. vs U.S. · margin relative to the national result that year. Third-party votes in 2012 are allocated from certified county totals by this place's share of each county's two-party vote — that cycle's precinct source records two-party splits. † 2004 sub-county results are estimated: the source's block-level detail for this cycle was unreliable — either county/municipality-level consolidated reporting (COVID-era) or a precinct-to-block allocation that misplaced votes — so the figures are allocated from the constituent county totals in proportion to the place and scaled to certified totals.
Year
Won
Democratic
Republican
Other
Margin
Swing
vs U.S.
Total
D
60.4%Harris249,576
36.6%Trump151,404
1.2%Stein5,035 +10
D+23.7
R+1.9
D+25.2
413,384
All 13 candidates in 2024 · 11 minor / independent
Federal officeholders only. State and local officeholders are planned for the next data pass.
Congressional elections · 25 House races · 17 Senate races
U.S. House
Each result reflects the U.S. House district as it was drawn for that election; redistricting has redrawn these lines over time, so they can differ from the current 120th-Congress district shown on the map above.
Source · MIT Election Lab (MEDSL), House. CC-BY 4.0.
Year
District
Won
Democratic
Republican
Total
2024
3
D
59.3%236,681
37.9%151,186
399,200
2022
3
D
60.2%175,514
39.7%115,801
291,602
2020
3
D
69.8%260,358
30.0%112,117
373,206
2018
3
D
69.1%202,407
28.3%82,774
292,880
2016
3
D
63.2%214,640
33.9%115,048
339,675
2014
3
D
59.5%128,594
40.3%87,029
215,946
2012
3
D
66.8%213,747
29.6%94,549
319,859
2010
3
D
61.1%147,448
36.0%86,947
241,429
2008
3
D
69.7%203,711
30.1%87,971
292,448
2006
3
D
64.0%150,142
33.8%79,174
234,486
2004
3
D
63.4%182,066
33.8%97,008
286,969
2002
3
D
65.8%145,589
34.2%75,721
221,310
2000
3
D
75.7%169,347
24.0%53,827
223,818
1998
3
D
77.6%137,501
22.4%39,667
177,168
1996
3
D
67.3%130,204
32.7%63,229
193,433
1994
3
D
71.0%117,269
29.0%47,966
165,235
1992
3
D
73.5%163,354
26.5%58,869
222,223
1990
3
D
69.7%82,545
30.3%35,841
118,386
1988
3
D
72.9%133,779
27.1%49,733
183,512
1986
3
D
79.1%100,161
20.9%26,452
126,613
1984
3
D
68.2%133,189
30.5%59,493
195,261
1982
3
D
74.2%110,042
25.8%38,259
148,301
1980
3
D
76.1%102,293
23.9%32,074
134,367
1978
3
D
100.0%91,189
0.0%0
91,189
1976
3
D
74.6%107,014
25.4%36,447
143,461
U.S. Senate
The statewide Senate race, counted in this district — aggregated from the precinct-level returns that fall inside its boundaries (not a statewide figure).
Votes · MIT Election Lab (MEDSL) precinct returns (CC BY 4.0); aggregated to the district over VEST precinct geometry (CC BY-NC 4.0).
Year
Won
Democratic
Republican
Total
2024
D
49.1%198,212
48.5%195,932
403,581
2022
D
65.8%1,316,897
34.1%682,293
2,002,336
2018
D
64.9%1,491,614
30.3%697,017
2,297,538
2016
D
61.0%1,659,907
35.7%972,557
2,722,434
2012
D
56.0%1,474,028
26.4%693,291
2,630,505
2010
D
62.3%1,140,615
35.8%655,666
1,831,744
2006
D
54.2%965,477
44.2%787,182
1,780,223
2004
D
64.8%1,504,691
33.7%783,055
2,321,571
2000
D
63.2%1,230,013
36.7%715,178
1,946,898
1998
D
70.5%1,062,810
29.5%444,637
1,507,447
1994
D
59.1%809,125
40.9%559,908
1,369,033
1992
D
71.0%1,307,610
29.0%533,688
1,841,298
1988
D
61.8%999,166
38.2%617,537
1,616,703
1986
D
60.7%675,225
39.3%437,411
1,112,636
1982
D
63.5%707,356
36.5%407,334
1,114,690
1980
R
33.8%435,118
66.2%850,970
1,286,088
1976
D
56.6%772,101
38.9%530,439
1,365,290
2024 U.S. Senate — every candidate counted in this district
Angela Alsobrooks · Democrat49.1%198,212
Larry Hogan · Republican48.5%195,932
Mike Scott · Libertarian2.1%8,461
Writein0.2%810
Patrick J Burke · Other0.0%153
Billy Bridges · Unaffiliated0.0%11
Robin Rowe · Unaffiliated0.0%2
Maryland's 3rd stretches from Baltimore's inner neighborhoods through heavily educated suburbs into Anne Arundel County, producing presidential margins that rank among the widest of any congressional district nationally.
Across the recorded series it reached a Democratic high of 25.7 points in 2020 and a Republican high of 5.0 points in 2004. Between 2020 and 2024 the district moved 1.9 points toward the Republican candidate; the 2024 margin was 23.7 points.
A population of 771,741, a 57% non-Hispanic-white share, and a median household income of $133,046 describe the district. The district's voting pattern over the last decade is most similar to that of Congressional District 11 and Congressional District 2.
Akashic
Political twins — districts
The congressional districts whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
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 →
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Maryland 3rd Congressional District. Akashic. https://akashic.app/cd/2403/. Accessed May 20, 2026. License: CC BY 4.0.
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How did Maryland 3rd Congressional District vote in 2024?
In 2024, Maryland 3rd Congressional District voted Democratic by 23.7 points (D+23.7), carried by the Democratic candidate. Out of 413,384 votes cast, 249,576 went Democratic and 151,404 went Republican.
When did Maryland 3rd Congressional District last vote Republican?
The most recent presidential election in which Maryland 3rd Congressional District voted Republican was 2004.
How many people live in Maryland 3rd Congressional District?
Maryland 3rd Congressional District has a population of 771,741 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Maryland 3rd Congressional District?
Median household income in Maryland 3rd Congressional District is $133,046 — above the national median of $80,734. The Maryland state median is $103,678.
What is the political history of Maryland 3rd Congressional District?
Akashic tracks 6 presidential elections in Maryland 3rd Congressional District from 2004 to 2024. Of those, 5 went Democratic and 1 went Republican.
