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2026 midterms · Hawaii

In Hawaii, registrations come to 80.9% of the Census count of adult citizens

0 of 5 counties have more registrations than the Census counts adult citizens; 0 of them by more than the Census margin of error. In the Governor race, GREEN, Josh / KAWAKAMI, Derek S.K. (D) against CORDERY, Gary / ANTHONY, Daniel (R), 4 of 4 counties moved toward Democrats from the 2024 presidential vote; statewide, 10.9 points toward Democrats.

Registrations ÷ Census adult citizens

80.9%

853,399 TOTAL REGISTRATION against 1,054,491 ± 2,853 adult citizens

Counties over 100%

0 of 5

0 beyond the Census margin of error

Swing since 2024

10.9 points toward Democrats

Governor: GREEN, Josh / KAWAKAMI, Derek S.K. (D), CORDERY, Gary / ANTHONY, Daniel (R), against the 2024 presidential vote

Turnout

45.8%

ballots cast ÷ registrations

Results: unofficial, from the state’s file. County summary REPORT 4 printed 11/04/2026 09:44 pm. That printout shows about half of the precincts counted in every contest, and the page gives no reason. It is the newest printout on the state’s results page. Source

Registration file: TOTAL REGISTRATION. County summary REPORT 3 printed 11/04/2026 05:05 am.

Hawaii’s file gives one registration number, “TOTAL REGISTRATION”, and does not say whether inactive registrations are included.

The state’s registration file has no row for Kalawao County; those shapes are hatched. The state’s results file has no row for Kalawao County; those shapes are hatched.

Voter rolls by county

Each county is colored by its registrations (TOTAL REGISTRATION) as a share of the Census count of its adult citizens. Gray is 100% or less; the amber steps are over 100%, darker for more.

Registrations ÷ Census adult citizens, by county0 of 5 counties over 100%, 0 of them beyond the Census margin of error. Statewide: 80.9%. Click or tap a county to go to its entry.
Every county as a table
CountyRegistrations ÷ adult citizensRegistrationsAdult citizensSwing since 2024Turnout
Hawaii County88.9%135,544152,477D +10.046.1%
Honolulu County75.5%550,792729,458D +10.946.1%
Kalawao County——70——
Kauai County91.8%49,33753,752D +14.249.9%
Maui County99.1%117,726118,804D +10.042.7%

The 2026 swing by county

Each arrow starts at the county’s center. It leans left and blue where the county moved toward Democrats from the 2024 presidential vote to the 2026 Governor race, and right and red where it moved toward Republicans; the longer the arrow, the bigger the move.

Change in the Democratic share of the two-party vote, by county4 of 4 counties moved toward Democrats and 0 toward Republicans. Statewide: 10.9 points toward Democrats. Governor: GREEN, Josh / KAWAKAMI, Derek S.K. (D), CORDERY, Gary / ANTHONY, Daniel (R); unofficial results.

Rolls and swing, county by county

Each dot is a county. Across: its registrations as a share of the Census count of adult citizens, with the dashed line at 100%. Up: its swing toward Democrats since 2024; down: toward Republicans.

Registrations ÷ adult citizens against the swingIn the 4 at or under 100%: 11.3 points toward Democrats.

Counties, one by one

Alphabetical. Each entry gives the county’s registrations against the Census count of adult citizens, its ballots, and its swing since 2024, with the file each figure comes from.

Hawaii County

TOTAL REGISTRATION
135,544
Census adult citizens
152,477 ± 1,201
Registrations ÷ adult citizens
88.9%
Registrations ÷ all adults
80.9%
Turnout
46.1%
Ballots ÷ adult citizens
41.0%
GREEN, Josh / KAWAKAMI, Derek S.K. (D)
45,868
CORDERY, Gary / ANTHONY, Daniel (R)
15,742
Democratic two-party share, 2026 · 2024
74.4% · 64.5%
Swing since 2024
10.0 points toward Democrats

Ballots: ballots cast. County summary REPORT 3 printed 11/04/2026 05:05 am (file).

Honolulu County

TOTAL REGISTRATION
550,792
Census adult citizens
729,458 ± 2,354
Registrations ÷ adult citizens
75.5%
Registrations ÷ all adults
69.1%
Turnout
46.1%
Ballots ÷ adult citizens
34.8%
GREEN, Josh / KAWAKAMI, Derek S.K. (D)
179,144
CORDERY, Gary / ANTHONY, Daniel (R)
69,851
Democratic two-party share, 2026 · 2024
71.9% · 61.0%
Swing since 2024
10.9 points toward Democrats

Ballots: ballots cast. County summary REPORT 4 printed 11/04/2026 09:44 pm (file).

Kalawao County

Census adult citizens
70 ± 25

No registration row in the state file; no results row in the state file.

Kauai County

TOTAL REGISTRATION
49,337
Census adult citizens
53,752 ± 543
Registrations ÷ adult citizens
91.8%
Registrations ÷ all adults
84.6%
Turnout
49.9%
Ballots ÷ adult citizens
45.8%
GREEN, Josh / KAWAKAMI, Derek S.K. (D)
17,694
CORDERY, Gary / ANTHONY, Daniel (R)
6,169
Democratic two-party share, 2026 · 2024
74.1% · 60.0%
Swing since 2024
14.2 points toward Democrats

Ballots: ballots cast. County summary REPORT 3 printed 11/04/2026 07:36 am (file).

Maui County

TOTAL REGISTRATION
117,726
Census adult citizens
118,804 ± 938
Registrations ÷ adult citizens
99.1%
Registrations ÷ all adults
92.2%
Turnout
42.7%
Ballots ÷ adult citizens
42.4%
GREEN, Josh / KAWAKAMI, Derek S.K. (D)
35,946
CORDERY, Gary / ANTHONY, Daniel (R)
13,164
Democratic two-party share, 2026 · 2024
73.2% · 63.2%
Swing since 2024
10.0 points toward Democrats

Ballots: ballots cast. County summary REPORT 3 printed 11/04/2026 02:35 am (file).

How this was built

Every figure on this page is computed from the files listed below when the page is built. The registration count is the state’s own, under the state’s own label. The adult-citizen count is the Census Bureau’s citizen voting-age population from its special tabulation of the American Community Survey for 2020 to 2024, which carries a margin of error for every area; a county is “over within the margin” when its registrations pass the estimate by less than that margin.

The ratio to all adults uses the Census Bureau’s Vintage 2025 estimates of every resident of voting age, citizen or not, as of July 2025. Turnout is ballots cast divided by registrations, using the state’s own label for its ballots count; where a state publishes no ballots count, the votes in the race shown stand in, and the entry says so.

The swing is the Democratic share of the two-party vote in the 2026 race shown, minus the Democratic share in the 2024 presidential race, in percentage points. The race is the US Senate where the Democrat and the Republican each drew more votes than all other candidates together; otherwise the governor’s race; otherwise the US House, summed over each county’s contested districts. Votes are counted on the Democratic and Republican lines only; votes for the same candidates on other party lines are counted with the other candidates. Under ranked choice, first choices are used. The 2024 baseline is the MIT Election Data and Science Lab’s county file.

These pages describe the numbers. They are kept apart from the tests we registered in advance for our own analysis of the 2026 returns. Unofficial results move during the canvass; each figure carries the time of the file it came from, and the pages are rebuilt as states certify and post new registration files.

Sources

WhatFileAs of
Registration: TOTAL REGISTRATIONelections.hawaii.gov (4 files)one file per unit; each unit's time is in its entry below the map
2026 Governor results (unofficial)elections.hawaii.gov (4 files)one file per unit; each unit's time is in its entry below the map
Census adult citizens (CVAP), ACS 2020–2024 special tabulationwww2.census.govpublished 2026
Census adult residents, Vintage 2025 estimateswww2.census.govJuly 1, 2025
2024 president by county, MIT Election Data and Science Labdoi.orgcertified 2024 returns