99chambers

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

Hawaii's 1st District

A district of about 712,000 people, 49% Asian, 40% of adults with a bachelor's degree. It votes D+26.4 relative to the nation for president.

Ed Case (D) · since Jan 3, 2019Next election Nov 7, 2028The 2026 race →
HI-1

Source: 2026 results: Hawaii Office of Elections and 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+26.493rd most
Democratic
Most DemocraticMost Republican218th seat · the majority lineHI-12

Labels below the bar mark 1 other seat in Hawaii.

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+36.4No race
U.S. HouseD+47.4D+43.7D+48.9

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

Source: 99chambers results archive: precinct results allocated to current lines; 2026: Hawaii Office of Elections and 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 Hawaii. The black marker is HI-1.

Adults with a bachelor's degree40% 71st pct · 1st of 2 in HI

Higher than 71% of seats.

White adults without a degree7% 3rd pct · 2nd of 2 in HI

Lower than 97% of seats.

Hispanic residents8% 32nd pct · 2nd of 2 in HI

Lower than 68% of seats.

Black residents2% 11th pct · 1st of 2 in HI

Lower than 89% of seats.

Asian residents49% 100th pct · 1st of 2 in HI

Higher than 100% of seats.

People per square mile2,045 78th pct · 1st of 2 in HI

Denser than 78% 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.

CA-14
23% Hispanic · 51% college gradsD+38.8Held DCA-28
28% Hispanic · 47% college gradsD+27.8Held DNY-6
26% Hispanic · 38% college gradsD+12.3Held DCA-17
64% college gradsD+42.8Held 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. Ed Case (D)
    2023– · Won 2022 by 47.4, 2024 by 43.7, 2026 by 48.9

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