99chambers

U.S. House seat · lines in effect since 2022

Maryland's 4th District

A district of about 763,000 people, 27% Hispanic and 54% Black, 34% of adults with a bachelor's degree. It votes D+77.3 relative to the nation for president.

Glenn Ivey (D) · since Jan 3, 2023Next election Nov 7, 2028The 2026 race →
MD-4

Source: 2026 results: civicAPI; boundaries: Census Bureau TIGER/LineUpdated Nov 7, 2026, 3:01 PM ET

Where it sits among all 435 seats

Every U.S. House seat by partisan lean, from most Democratic to most Republican. Lean is the seat's presidential vote on current lines, relative to the nation.

D+77.35th most
Democratic
Most DemocraticMost Republican218th seat · the majority lineMD-47853261

Labels below the bar mark 7 other seats in Maryland.

Source: 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET

Every race on these lines

Results recomputed from precinct returns as if today's boundaries had always existed, so years compare like for like.

202220242026
U.S. HouseD+80.4D+77.2D+82.9

Outlined: the race for this seat itselfBlank: no race that year

Source: 99chambers results archive: precinct results allocated to current lines; 2026: civicAPIUpdated Nov 7, 2026, 3:01 PM ET

Who lives here, compared

Grey bars show the spread of all 435 seats. Small marks are other seats in Maryland. The black marker is MD-4.

Adults with a bachelor's degree34% 50th pct · 7th of 8 in MD

Higher than 50% of seats.

White adults without a degree4% 0th pct · 8th of 8 in MD

Lower than 100% of seats.

Hispanic residents27% 78th pct · 1st of 8 in MD

Higher than 78% of seats.

Black residents54% 99th pct · 2nd of 8 in MD

Higher than 99% of seats.

Asian residents5% 63rd pct · 5th of 8 in MD

Higher than 63% of seats.

People per square mile3,403 87th pct · 2nd of 8 in MD

Denser than 87% of seats.

Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current linesUpdated Oct 13, 2026, 5:06 AM ET

Seats most like this one

Nearest seats on demographics, density and lean.

MD-7
54% Black · 32% college gradsD+61.7Held DPA-3
51% Black · 44% college gradsD+78.9Held DTX-18
37% Hispanic · 41% BlackD+57.8Held DNJ-10
23% Hispanic · 47% BlackD+54.4Held D

Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current lines; 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET

Who has held it

These lines took effect in 2022.

  1. Glenn F. Ivey (D)
    2023– · Won 2022 by 80.4, 2024 by 77.2, 2026 by 82.9

Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)