Horizon · our Election Day forecast: polls, plus fundamentals like incumbency, fundraising and past results.

Pulse · polls only: where the races stand today, with no fundamentals and wider uncertainty.

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Hawaii › Hawaii House of Representatives · State legislature · November 3, 2026 · Updated Oct 16, 2026

Hawaii House District 31

Ichiyama is very likely to win: Ichiyama wins in more than 99 of every 100 simulations.

Ichiyama (D)
>99%
chance of winning
Valdez (R)
<1%
Average margin
D+30.2
80% of outcomes
D+20 to D+41
Partisan lean
D+21
Polls
No pollsmodel only

Ichiyama is very likely to win: Ichiyama wins in more than 99 of every 100 simulations.

Ichiyama (D)
99%
chance of winning
Valdez (R)
1%
Average margin
D+27.3
80% of outcomes
D+14 to D+41
Partisan lean
D+21
Polls
No pollsmodel only

Range of outcomes

Final margin across our simulations; the white dashes mark the middle 80%.

D+30.2R+40R+20EvenD+20D+40
D+27.3R+60R+40R+20EvenD+20D+40D+60

How the odds have moved

Chance of winning by forecast date.

0%25%50%75%100%AugSepOctNovNov 3Ichiyama >99%Valdez <1%

Updated nightly. Each day is the current model run on the polls that had ended by then (how).

0%25%50%75%100%AugSepOctNovNov 3Ichiyama 99%Valdez 1%

Updated nightly. Each day is the current model run on the polls that had ended by then (how).

The candidates

What goes into the forecast

Every ingredient's estimate of the final margin.

National environment
D+9.5Election Day forecast
Hawaii state offices
+0.0Polls for governor, statewide and legislative races · details
Environment here
D+9.5Used by the fundamentals
Swing reaching this office
58%Of a shift in the environment, from past legislative races since 2016
Pacific adjustment
−1.7How legislative races in the region have run against lean and environment lately
← RepublicanDemocratic →Lean + environmentUsual vote, shifted by 58% of the environment andthe Pacific adjustmentD+25.6Fundamentals modelAdds incumbency, past results, money andexperienceD+30.2Polls in similar placesPolling of similar races in Hawaii and look-alikeplacesD+30.2Polling averageNo polls of this racenot availableHorizon forecastPolls + fundamentals, projected to Election DayD+30.2Pulse forecastPolls (and polling of similar places) only, todayD+27.3

Each estimate is a margin before national and statewide uncertainty is simulated. Horizon blends polls, fundamentals and a little of the similar-places estimate, weighting each by how precise it is; Pulse uses polls and similar places only.

Fundamentals inputs
Incumbency (+1 D, −1 R)1
Fundraising edge (log ratio of individual money)0.85
Elected-experience edge0.67
First-term incumbent0
Seat's last result vs. expectation19.24
Incumbent's last result vs. expectation19.24

Polls

No public polls of this race. The forecast relies on fundamentals and on polling of similar places in the state.

The district

Lean D+21: how much more Democratic or Republican than the nation it votes for president.

Presidential vote

← RepublicanDemocratic →2016 presidentD+30.4D+28.1 vs. nation2020 presidentD+25.8D+21.3 vs. nation2024 presidentD+19.9D+21.4 vs. nation

Precinct results re-aggregated to the current district lines.

Who lives here

Population
35,377
People per km²
1,649
Adults with a B.A.+
37%
White, no degree
15%of adults
  • White 26%
  • Hispanic 15%
  • Black 5%
  • Asian 35%
  • Other / multiracial 19%

American Community Survey 2020–2024, aggregated from census tracts.

Past results

Results in the same-numbered district; earlier elections may have used different lines.

2024

8,084 votes · D+38.0
✓ ICHIYAMA, Linda (D)69.0%
VALDEZ, Nancy A. (R)31.0%

2024 President Vote in this district

8,269 two-party votes · D+19.9 · D+21.4 vs. the nation
✓ Kamala Harris (D)59.9%
Donald Trump (R)40.1%

2020 President Vote in this district

10,366 two-party votes · D+25.8 · D+21.3 vs. the nation
✓ Joe Biden (D)62.9%
Donald Trump (R)37.1%

2016 Earlier district lines

5,957 votes · D+40.0
✓ Aaron Ling Johanson (D)70.0%
Eric H L Ching (R)30.0%

2016 President Vote in this district

7,088 two-party votes · D+30.4 · D+28.1 vs. the nation
✓ Hillary Clinton (D)65.2%
Donald Trump (R)34.8%

2014 Earlier district lines

5,150 votes · R+43.6
✓ Aaron Ling Johanson (R)71.8%
Lei Sharsh (D)28.2%