Pennsylvania's 4th Congressional District

Pennsylvania's 4th Congressional District is represented by Madeleine Dean (Democrat), who has held the seat since 2019. Dean has an overall VoteSee report card grade of D, voted in 98% of roll-call votes on bills this Congress, and votes with the Democratic majority 99% of the time. The district includes Pottstown, Lansdale, and Willow Grove. It takes in all or part of 2 counties, and 82% of residents live in Montgomery County. About 775,000 people live in the district, and the median household income is $110,538.

Current Representative

Madeleine Dean (Democrat) has represented Pennsylvania's 4th Congressional District since 2019.

• VoteSee report card grade: D
• Attendance in the 119th Congress: 98% of roll-call votes on bills
• Votes with the Democrat majority: 99%

See Madeleine Dean's full voting record and issue positions →

2026 Election

U.S. House: Pennsylvania 4th District

Winner: Madeleine Dean.

Incumbent Madeleine Dean is running for re-election. 2 candidates were on the Nov 3, 2026 ballot.

• Madeleine Dean (Democratic), incumbent: raised $2.0M, $1.4M cash on hand; VoteSee report card D; 98% attendance; votes with the Democratic majority 99% of the time
• Aurora Stuski (Republican): raised $10K, $2K cash on hand

Polls: No public polls

See the full 2026 race →

District Demographics

• Population: 774,814
• Median household income: $110,538
• Median age: 42
• Median home value: $404,000
• Bachelor's degree or higher: 49.2%

Source: American Community Survey 2020–2024 5-year estimates, 119th Congress boundaries.

How Dean Voted Recently

• Yea on American Enrichment Deployment Act (Nov 9, 2026) — Passed
• Yea on Nuclear REFUEL (Recycling Efficient Fuels Utilizing Expedited Licensing) Act (Nov 9, 2026) — Passed
• Yea on Retire through Ownership Act (Sep 16, 2026) — Passed
• Yea on Water Resources Development Act of 2026 (Sep 16, 2026) — Passed
• Yea on Ratepayer Protection Act (Sep 16, 2026) — Passed

Breaks with the Democrat majority

• Yea on Lindsey O. Graham Sanctioning Russia and Iran Act of 2026 (Sep 16, 2026) — Passed
• Yea on Main Street Act (Jul 21, 2026) — Passed
• Nay on Sunshine Protection Act of 2025 (Jul 14, 2026) — Passed

Who Held This Seat Before

Members of Congress who previously represented Pennsylvania's 4th Congressional District. District lines are redrawn after each census, so earlier members may have represented a different area under this number.

• Scott Perry — Republican (2013–2019)
• Jason Altmire — Democrat (2007–2013)
• Melissa Hart — Republican (2001–2007)
• Ron Klink — Democrat (1993–2001)
• Joseph Kolter — Democrat (1983–1993)
• Charles Dougherty — Republican (1979–1983)
• Joshua Eilberg — Democrat (1967–1979)
• Herman Toll — Democrat (1963–1967)
• Robert Nix — Democrat (1957–1963)
• Earl Chudoff — Democrat (1949–1959)
• Franklin Maloney — Republican (1947–1949)
• John Sheridan — Democrat (1939–1947)

Where the District Is

Pennsylvania's 4th Congressional District covers 726 square miles of land. Boundaries are for the current (119th) Congress.

Counties

• Montgomery County (part): 82% of residents
• Berks County (part): 18% of residents

Largest communities

• Pottstown
• Lansdale
• Willow Grove
• Roslyn
• Bala Cynwyd
• Conshohocken
• Harleysville (part)
• Audubon

Neighboring Districts

• Pennsylvania's 1st Congressional District — Brian Fitzpatrick (Republican)
• Pennsylvania's 2nd Congressional District — Brendan Boyle (Democrat)
• Pennsylvania's 3rd Congressional District — Dwight Evans (Democrat)
• Pennsylvania's 5th Congressional District — Mary Scanlon (Democrat)
• Pennsylvania's 6th Congressional District — Chrissy Houlahan (Democrat)
• Pennsylvania's 7th Congressional District — Ryan Mackenzie (Republican)
• Pennsylvania's 9th Congressional District — Daniel Meuser (Republican)

Pennsylvania's U.S. Senators

• John Fetterman — Democrat, senior senator
• Dave McCormick — Republican, junior senator

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