Hawaii State Senate seat · lines in effect since 2022

Hawaii Senate District 12

A district of about 53,000 people, 52% Asian, 49% of adults with a bachelor's degree. It votes D+35.5 relative to the nation for president.

Where it sits among all 25 seats

Every Hawaii State Senate 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+35.56th most
Democratic
Most DemocraticMost Republican13th seat · the majority lineDistrict 12

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.

2024
U.S. SenateD+43.7

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 25 seats. Small marks are other seats in Hawaii. The black marker is District 12.

Adults with a bachelor's degree49% 88th pct · 4th of 25 in HI

Higher than 88% of seats.

White adults without a degree11% 67th pct · 9th of 25 in HI

Higher than 67% of seats.

Hispanic residents5% 4th pct · 24th of 25 in HI

Lower than 96% of seats.

Black residents2% 71st pct · 8th of 25 in HI

Higher than 71% of seats.

Asian residents52% 88th pct · 4th of 25 in HI

Higher than 88% of seats.

People per square mile3,265 83rd pct · 5th of 25 in HI

Denser than 83% of seats.

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