Hawaii State Senate seat · lines in effect since 2022
Hawaii Senate District 18
A district of about 62,000 people, 51% Asian, 36% of adults with a bachelor's degree. It votes D+16.5 relative to the nation for president.
2024 election
Nov 5, 2024- Michelle Kidani (D) · won66.2%
- Emil Svrcina (R)33.8%
Source: Hawaii Office of ElectionsUpdated Oct 1, 2026, 6:08 AM ET
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.
Democratic
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 election for this seat
13 races since 1984. District numbers are redrawn after each census: each group is one set of lines.
| Year | Winner | Runner-up | Won by |
|---|---|---|---|
| Lines first used in 2022 | |||
| 2024 | Michelle Kidani (D) | Emil Svrcina (R) | 32.5 |
| 2022 | Michelle Kidani (D) | Mary Smart (R) | 31.5 |
| Lines first used in 2012 | |||
| 2018 | Michelle Kidani (D) | Tony Solis (R) | 34.0 |
| 2014 | Michelle Kidani (D) | Dennis C. H. Kim (R) | 16.2 |
| 2012 | Michelle Kidani (D) | Rojo Herrera (R) | 44.5 |
| Lines first used in 2002 | |||
| 2008 | Clarence Nishihara (D) | — | Unopposed |
| 2004 | Clarence Nishihara (D) | — | Unopposed |
| 2002 | Calvin Kawamoto (D) | — | Unopposed |
| Lines first used in 1992 | |||
| 2000 special | Ron Menor (D) | — | Unopposed |
| 1998 | Randy Iwase (D) | Roger Ancheta (R) | 39.4 |
| 1994 | Randy Iwase (D) | — | Unopposed |
| Lines first used in 1982 | |||
| 1988 | Milton Holt (D) | — | Unopposed |
| 1984 | Milton Holt (D) | — | Unopposed |
Won by: the winner's lead over the runner-up, in points of the vote. Source: 99chambers results archive (MEDSL, Klarner, state election offices)
Districts that overlap District 18
The state's districts in other chambers that share residents with this one, and the share of District 18's area in each.
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 | |
|---|---|
| President | D+18.8 |
| U.S. Senate | D+28.8 |
Outlined: the race for this seat itselfBlank: no race that year
Source: 99chambers results archive: precinct results allocated to current lines; 2026: civicAPIUpdated Nov 8, 2026, 7:01 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 18.
Higher than 67% of seats.
Lower than 92% of seats.
Lower than 54% of seats.
Higher than 75% of seats.
Higher than 71% of seats.
Denser than 75% 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 1736% college gradsD+17.8Held DDistrict 14
28% college gradsD+20.2Held DDistrict 19
24% college gradsD+8.6Not up in 2026District 5
28% college gradsD+27.1Held 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