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 did not seek reelection in 2020.

District 2: Russell Ruderman
District 25: Laura Thielen

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

General election

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

District 11

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

District 13

General election

Incumbent Democrat Karl Rhoads was automatically reelected without opposition, with no votes recorded.

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