Hawaii State Senate seat · lines in effect since 2022
Hawaii Senate District 4
A district of about 44,000 people, 35% of adults with a bachelor's degree. It votes D+29.6 relative to the nation for president.
2022 election
Nov 8, 2022- Herbert Richards (D) · won71.2%
- Nicholas M. Tancheff (R)28.8%
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 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
16 races since 1968. 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 | |||
| 2022 | Herbert Richards (D) | Nicholas M. Tancheff (R) | 42.4 |
| Lines first used in 2012 | |||
| 2018 | Lorraine Inouye (D) | — | Unopposed |
| 2014 | Lorraine Inouye (D) | Alain Schiller (I) | 55.6 |
| 2012 | Malama Solomon (D) | Kelly Greenwell (I) | 33.2 |
| Lines first used in 2002 | |||
| 2010 | Shan S. Tsutsui (D) | Eric Seibert (R) | 55.7 |
| 2006 | Shan S. Tsutsui (D) | — | Unopposed |
| 2002 | Shan S. Tsutsui (D) | — | Unopposed |
| Lines first used in 1992 | |||
| 1998 | Jan Buen (D) | John M. Corboy (R) | 35.8 |
| 1994 | Rosalyn Baker (D) | Zane A. Dittman (R) | 64.2 |
| Lines first used in 1982 | |||
| 1988 | Mamoru Yamasaki (D) | Leinaala Drummond (R) | 30.3 |
| 1984 | Mamoru Yamasaki (D) | — | Unopposed |
| Lines first used in 1972 | |||
| 1980 | Patsy Kikue Young · Norman Mizuguchi (D) | — | Unopposed |
| 1978 | Ben Cayetano · Joe Kuroda · Patsy Kikue Young · Norman Mizuguchi (D) | Pol R. Ragasa (R) | 12.1 |
| 1974 | Joe Kuroda · Patsy Kikue Young · Donald D. H. Ching · Francis A. Wong (D) | William F. Rennie (R) | 11.1 |
| Lines first used in 1962 | |||
| 1970 | Donald D. H. Ching · Francis A. Wong · Nadao Yoshinaga · Larry N. Kuriyama (D) | — | Unopposed |
| 1968 | Donald D. H. Ching · Larry N. Kuriyama (D) | Winona L. Johnson (R) | 25.8 |
Primaries: 2014 Democratic primary
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 4
The state's districts in other chambers that share residents with this one, and the share of District 4's area in each.
- U.S. House
- HI-2 100%
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+31.8 |
| U.S. Senate | D+39.9 |
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 4.
Higher than 50% of seats.
Higher than 83% of seats.
Lower than 58% of seats.
Lower than 75% of seats.
Lower than 88% of seats.
Least dense of 25 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 332% college gradsD+24.1Not up in 2026District 7
32% college gradsD+34.2Not up in 2026District 8
30% college gradsD+22.3Held DDistrict 6
33% college gradsD+24.5Not up in 2026
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