99chambers

Hawaii House of Representatives seat · lines in effect since 2022

Hawaii House District 21

A district of about 28,000 people, 49% Asian, 48% of adults with a bachelor's degree. It votes D+45.1 relative to the nation for president.

Jackson Sayama (D) · since Nov 3, 2020Next election Nov 7, 2028The 2026 race →

Where it sits among all 51 seats

Every Hawaii House of Representatives 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+45.12nd most
Democratic
Most DemocraticMost Republican26th seat · the majority lineDistrict 21

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.

20222024
U.S. SenateNo raceD+50.5
Hawaii House of RepresentativesD+48.0D+53.1

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 51 seats. Small marks are other seats in Hawaii. The black marker is District 21.

Adults with a bachelor's degree48% 84th pct · 9th of 51 in HI

Higher than 84% of seats.

White adults without a degree7% 32nd pct · 35th of 51 in HI

Lower than 68% of seats.

Hispanic residents6% 28th pct · 37th of 51 in HI

Lower than 72% of seats.

Black residents1% 42nd pct · 30th of 51 in HI

Lower than 58% of seats.

Asian residents49% 72nd pct · 15th of 51 in HI

Higher than 72% of seats.

People per square mile4,829 90th pct · 6th of 51 in HI

Denser than 90% 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.

District 27
43% college gradsD+40.4Held DDistrict 20
49% college gradsD+41.8CountingDistrict 26
46% college gradsD+42.6CountingDistrict 22
59% college gradsD+52.3Held 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. Derek Turbin (D)
    2027– · Won 2026 unopposed
  2. Jackson D. Sayama (D)
    2025–2027 · Won 2024 by 53.1
  3. Jackson D. Sayama (D)
    2023–2025 · Won 2022 by 48.0

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