House districts / Maryland


Maryland's 3rd congressional district

MD-3. Same lines in 2026 as in 2022.

Sarah Elfreth
Current member
Sarah Elfreth
Democrat. In office since 2025.
2026 lines

Fundraising

4 other candidates have not filed.

Federal Election Commission, candidate totals, public domain.

President in this district

PollCheck calculation from precinct returns on the 2026 lines (method).

YearDemocratRepublicanOtherMargin
2024Harris 59.8%Trump 36.3%3.9%D+23.6
2020Biden 61.2%Trump 35.9%2.9%D+25.3
2016Clinton 53.2%Trump 39.5%7.3%D+13.7

Who lives here

MeasureThis districtUS
People
Population
781,479
Adults (18+)
604,395
Citizens, % of adults
93.2%
92.1%
Age, % of adults
18 to 29
18.1%
20.3%
30 to 44
27.1%
25.9%
45 to 64
33.9%
31.8%
65 and over
20.9%
22.0%
Race and Hispanic origin, % of residents
White
56.5%
57.4%
Black
17.4%
11.9%
Hispanic
9.4%
19.3%
Asian
10.5%
5.9%
Other or more than one
6.2%
5.5%
Education and income
Bachelor's degree or higher, % of 25+
52.8%
35.7%
Median household income
$133,046
$80,734

American Community Survey 2020-2024 5-year estimates for this district. The tick marks the US figure.

Winning margin

Results since 1976

YearWinnerShare Runner-upShareMargin
Current lines (2022 on) post-census redistricting
2024Sarah Elfreth Democrat59.3%Robert J. Steinberger Republican others 2.8%37.9%D+21.4
2022John P. Sarbanes Democrat60.2%Yuripzy Morgan Republican others 0.1%39.7%D+20.5
Earlier lines, elections 2012-2020 post-census redistricting
2020John P. Sarbanes Democrat69.8%Charles Anthony Republican others 0.2%30.0%D+39.7
2018John P. Sarbanes Democrat69.1%Charles Anthony Republican others 2.6%28.3%D+40.9
2016John P. Sarbanes Democrat63.2%Mark Plaster Republican others 2.9%33.9%D+29.3
2014John P. Sarbanes Democrat59.5%Charles A. Long Republican others 0.1%40.3%D+19.2
2012John P. Sarbanes Democrat66.8%Eric Delano Knowles Republican others 3.6%29.6%D+37.3
Earlier lines, elections 2002-2010 post-census redistricting
2010John P. Sarbanes Democrat61.1%Jim Wilhelm Republican others 2.9%36.0%D+25.1
2008John P. Sarbanes Democrat69.7%Thomas E. "Pinkston" Harris Republican others 0.3%30.1%D+39.6
2006John P. Sarbanes Democrat64.0%John White Republican others 2.2%33.8%D+30.3
2004Benjamin L. Cardin Democrat63.4%Robert P. Duckworth Republican others 2.8%33.8%D+29.6
2002Benjamin L. Cardin Democrat65.8%Scott Conwell Republican34.2%D+31.6
Earlier lines, elections 1992-2000 post-census redistricting
2000Benjamin L. Cardin Democrat75.7%Colin Harby Republican others 0.3%24.1%D+51.6
1998Benjamin L. Cardin Democrat77.6%Colin Felix Harby Republican22.4%D+55.2
1996Benjamin L. Cardin Democrat67.3%Patrick L. McDonough Republican32.7%D+34.6
1994Benjamin L. Cardin Democrat71.0%Robert Ryan Tousey Republican29.0%D+41.9
1992Benjamin L. Cardin Democrat73.5%William T. S. Bricker Republican26.5%D+47.0
Earlier lines, elections 1982-1990 post-census redistricting
1990Benjamin L. Cardin Democrat69.7%Harwood Nichols Republican30.3%D+39.5
1988Benjamin L. Cardin Democrat72.9%Ross Z. Pierpont Republican27.1%D+45.8
1986Benjamin L. Cardin Democrat79.1%Ross Z. Pierpont Republican20.9%D+58.2
1984Barbara A. Mikulski Democrat68.2%Ross Z. Pierpont Republican others 1.3%30.5%D+37.7
1982Barbara A. Mikulski Democrat74.2%H. Robert Scherr Republican25.8%D+48.4
Earlier lines, elections 1976-1980
1980Barbara A. Mikulski Democrat76.1%Russell T. Schaffer Republican23.9%D+52.3
1978Barbara A. Mikulski Democrat100.0%D+100.0
1976Barbara A. Mikulski Democrat74.6%Samuel A. Culotta Republican25.4%D+49.2

More on Maryland

Other Maryland districts

About these results

Shares count all candidate votes, including write-ins, with a candidate's votes on several party lines added together. Each result is on the lines in force at the time. Mid-decade redraws before 2016 may be unmarked.

President in this district: 2016 and 2020 are estimates: precinct votes are split between districts by census block.

Counties only partly inside the district show the 2024 result for that part; estimates are labelled.

Margin chart: winner minus runner-up. Gaps are unopposed races; dashed lines are new district lines.

Sources

Results: MIT Election Data and Science Lab, U.S. House 1976-2016 (doi:10.7910/DVN/IG0UN2, CC0; via MEDSL/constituency-returns), and Clerk of the US House, Statistics of the Presidential and Congressional Election 2018-2024 (public domain).

Presidential results: PollCheck calculation from MIT Election Data and Science Lab 2024 precinct returns (doi:10.7910/DVN/XDJYKC, doi:10.7910/DVN/USBYR4, CC0; state totals doi:10.7910/DVN/42MVDX, CC0) and Voting and Election Science Team 2016 and 2020 precinct results and shapes (doi:10.7910/DVN/NH5S2I, doi:10.7910/DVN/K7760H, CC BY 4.0), with US Census Bureau 2020 block populations and block equivalency files (public domain). Official figures: Texas Legislative Council (2024 on the 2026 lines); Louisiana, New Jersey, California and Washington election offices (county totals). Certified results transcribed by Wikipedia (CC BY-SA 4.0): Maine 2024 by district: 2024 United States presidential election in Maine (revision 1382530995); Indiana county totals: 2024 United States presidential election in Indiana (revision 1382505975); Oregon county totals: 2024 United States presidential election in Oregon (revision 1382605746).

District lines: US Census Bureau TIGER/Line 2026 (120th Congress) and 2025 cartographic boundary files (119th Congress), public domain.

Members: unitedstates/congress-legislators (CC0).

Counties: US Census Bureau 2024 cartographic boundary file (public domain); 2024 county results summed from the same MEDSL precinct returns, with the official county totals above.

Demographics: US Census Bureau, American Community Survey 5-year estimates 2020-2024 (public domain).

2028 candidates: Federal Election Commission (public domain).

Photos: official portraits, public domain (US government); see Photo credits.

PollCheck US. Data through November 5, 2026. Photo credits