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Maryland's 3rd Congressional District

The current officeholder, the 2024 result, and a precinct-level model you can run yourself — built from how Maryland actually voted.

Model Maryland's 3rd Congressional District →

Maryland's 3rd Congressional District — highlighted within Maryland's U.S. House districts · 2024: D+21.4 · open the interactive map →

Current officeholder

Sarah Elfreth Democratic

2024 result

Democratic D+21.4

2024 votes cast

399,200

Office

U.S. House

Who lives in this district

This district is home to about 773,638 people, median age 39.6, median household income $128,806.

Population

773,638

Median age

39.6

Median household income

$128,806

Bachelor's degree or higher

52.8%

Race & ethnicity: White 57.5% · Black 17.5% · Hispanic 9.1% · Asian 10.3%

Source: U.S. Census Bureau, 2019–2023 American Community Survey (5-year).

Precinct results — 2024 general

213 precincts reported in Maryland's 3rd Congressional District's 2024 general election. The twenty largest:

Precinct Winner Margin Votes
24013-013-001 Republican R+23.4 6,109
24027-006-027 Democratic D+53.4 5,160
24027-003-001 Democratic D+11.3 4,826
24003-006-019 Democratic D+14.5 4,752
24027-005-005 Democratic D+37.1 4,595
24027-005-006 Democratic D+33.9 4,589
24003-001-021 Democratic D+50.5 4,553
24013-014-005 Republican R+31.7 4,544
24003-003-006 Democratic D+38.7 4,520
24027-006-020 Democratic D+57.3 4,120
24027-006-021 Democratic D+57.1 4,102
24027-005-004 Democratic D+63.7 3,924
24027-005-001 Democratic D+13.6 3,907
24027-006-002 Democratic D+50.2 3,860
24027-005-012 Democratic D+58.8 3,626
24027-004-003 Republican R+15.9 3,582
24027-006-028 Democratic D+28.1 3,560
24027-001-004 Democratic D+26.6 3,543
24027-005-010 Democratic D+31.5 3,541
24027-006-005 Democratic D+61.3 3,539

All 213 precincts are modelable — open the race in the simulator and drill to precinct grain.

Find your district

Enter a ZIP code or a district (e.g. NC-4) to find your U.S. House district and who represents it.

Model Maryland's 3rd Congressional District in five steps

  1. Set the candidates. Name the contenders for the Maryland's 3rd Congressional District (or keep the generic Democrat / Republican defaults). The map starts from the canonical mixed-grain 2024 presidential baseline.
  2. Apply a swing. Move vote share statewide, or by demographic cohort, with a slider. The map and the running tally recompute instantly.
  3. Model turnout. Mobilize or depress turnout for any group — turnout and persuasion are modeled separately, the way a real campaign thinks about them.
  4. Explore local geography. Zoom from the state through counties to the finest supported reporting grain and adjust the places available in the model.
  5. Roll up & share. Roll the result up to chamber control, then share the exact versioned scenario.

Open Maryland's 3rd Congressional District in the simulator →

Frequently asked

Who represents Maryland's 3rd Congressional District?
Sarah Elfreth (Democratic) currently holds this U.S. House seat.
What was the 2024 result in Maryland's 3rd Congressional District?
D+21.4 — 236,681 Democratic, 151,186 Republican, of 399,200 votes cast.
Can I model this race myself?
Yes — open it in the electionsmcp simulator and model vote-share swing and turnout from the real 2024 baseline, down to the precinct, then roll it up to chamber control.

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