99chambers

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

Wisconsin's 4th District

A district of about 724,000 people, 32% Black, 34% of adults with a bachelor's degree. It votes D+53.0 relative to the nation for president.

Gwen Moore (D) · since Jan 4, 2005Next election Nov 7, 2028The 2026 race →
WI-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+53.027th most
Democratic
Most DemocraticMost Republican218th seat · the majority lineWI-42138675

Labels below the bar mark 7 other seats in Wisconsin.

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. SenateNo raceD+53.1No race
U.S. HouseD+52.7D+52.4D+62.5

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 Wisconsin. The black marker is WI-4.

Adults with a bachelor's degree34% 52nd pct · 3rd of 8 in WI

Higher than 52% of seats.

White adults without a degree24% 26th pct · 8th of 8 in WI

Lower than 74% of seats.

Hispanic residents19% 62nd pct · 1st of 8 in WI

Higher than 62% of seats.

Black residents32% 91st pct · 1st of 8 in WI

Higher than 91% of seats.

Asian residents5% 64th pct · 1st of 8 in WI

Higher than 64% of seats.

People per square mile1,321 73rd pct · 1st of 8 in WI

Denser than 73% 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.

IN-7
32% Black · 36% college gradsD+42.8Held DOH-11
43% Black · 34% college gradsD+56.1Held DNC-12
37% Black · 45% college gradsD+47.9Held DOH-3
28% Black · 45% college gradsD+41.6Held 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. Gwen Moore (D)
    2023– · Won 2022 by 52.7, 2024 by 52.4, 2026 by 62.5

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