2020 Hawaii Senate election

The 2020 Hawaii Senate elections took place as part of the biennial 2020 United States elections. Hawaii voters elected state senators in 13 of the state's 25 senate districts. The primary elections on August 8, 2020 determined which candidates would appear on the November 3, 2020 general election ballot.

Following the previous election in 2018, Democrats had control of the Hawaii Senate with 24 seats to Republicans' one seat.

Retiring incumbents
Two incumbent senators (both Democrats) did not seek reelection in 2020.


 * 1) District 2: Russell Ruderman (D)
 * 2) District 25: Laura Thielen (D)

Detailed results
Source for primary results: Source for general election results:

District 2

 * Democratic primary


 * General election

District 8
Incumbent Democrat and Senate President Ron Kouchi was automatically reelected without opposition, with no votes recorded.

District 10

 * Democratic primary

Incumbent Democrat Les Ihara Jr. was automatically reelected without opposition, with no votes recorded.
 * General election

District 11
Incumbent Democrat Brian Taniguchi was automatically reelected without opposition, with no votes recorded.

District 13
Incumbent Democrat Karl Rhoads was automatically reelected without opposition, with no votes recorded.
 * General election

District 14
Incumbent Democrat Donna Mercado Kim was automatically reelected without opposition, with no votes recorded.

District 15
Incumbent Democrat Glenn Wakai was automatically reelected without opposition, with no votes recorded.

District 19

 * Democratic primary


 * General election

District 22

 * Democratic primary


 * General election