Key Points
ใปAccording to the Okinawa Prefectural Election Commission’s final count released on September 14, 2026, Genta Koja, 42, a newcomer backed by the Liberal Democratic Party and five other parties, won the prefecture’s gubernatorial election of September 13, 2026 with 423,124 votes against 276,060 for the two-term incumbent Denny Tamaki, a margin of about 147,000 votes. It is the first win for an LDP-backed candidate in Okinawa since 2010.
ใปThe court cases over the Henoko relocation were already finished before the campaign. The central government approved the disputed design change itself in December 2023 and the Supreme Court confirmed the prefecture’s defeat in March 2024, so no governor could have stopped the work.
ใปIn Kyodo News’s exit poll of September 13, 2026, 72.9 percent of voters who named the bases as their main issue chose Tamaki, while 78.7 percent of those who named the economy chose Koja. The anger about the bases did not disappear, but the prefecture handed the job of governing to the other side.
Koja Takes 423,124 Votes and Okinawa Turns Toward Tokyo After Twelve Years
Genta Koja, 42, an independent newcomer and the former deputy mayor of Naha, won the Okinawa gubernatorial election held on September 13, 2026. According to the final count released by the Okinawa Prefectural Election Commission on September 14, 2026, he took 423,124 votes against 276,060 for the incumbent Denny Tamaki, 66, who was seeking a third term. Turnout, according to the same commission figures, was 61.57 percent, up 3.65 points from the 57.92 percent recorded in 2022.
Koja was endorsed by the Liberal Democratic Party, Ishin, the Democratic Party for the People, Sanseito and the Conservative Party of Japan, along with the Okinawa chapter of Komeito. Tamaki ran with the support of the Constitutional Democratic Party, the Japanese Communist Party, Inochi, the Social Democratic Party and the Okinawa Socialist Masses Party. Four other candidates also stood.
This is the first gubernatorial win for an LDP-backed candidate in Okinawa Prefecture since 2010, and it ends twelve years in which every governor opposed the relocation of the US Marine Corps air station at Futenma to Henoko. Koja is the first governor born after Okinawa’s 1972 reversion to Japan and the youngest in the prefecture’s history.
During the campaign Koja said he would accept the Henoko construction, which is already under way, in order to move the return of Futenma forward, and he pledged to double per capita prefectural income within ten years. After the projection came in, he told NHK that he wants the government to fix a date for the return of Futenma within one to two years of the earliest possible completion of the procedures, which he put at around 2036.
Tamaki spoke in Naha on the evening of September 13 and said he would take the result to heart, insisting that his opposition to Henoko had not been wrong. He said the slander and false information circulated during the campaign required a national response. Prime Minister Sanae Takaichi said on September 14 that the election reflected the will of Okinawans who want economic growth and that she wants to work with the new governor to strengthen the prefecture’s economy.
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How Henoko Left the Prefecture’s Hands Before the Campaign Began
“All Okinawa” (ลru Okinawa) is a cross-partisan coalition formed in 2014 to elect Takeshi Onaga, a conservative former LDP politician, on a single shared position: no new base at Henoko. It combined left-wing parties with conservative business owners who had broken with Tokyo over the relocation plan.
That combination was the point. Left-wing parties alone could not reach a majority in Okinawa, and the conservative business votes that Onaga carried with him were what made the difference in 2014.
The coalition was built from the right, and it thinned from the right
The cracks opened before Onaga died in office in August 2018. In 2018 one of the business groups that had backed him left the coalition, saying its calls for an early prefectural referendum went unanswered and that centrist and conservative voices had become too small inside the organization. The first thing to break was not the position on Henoko but the way decisions were made and dissent was handled.
In 2021 a second major business group withdrew its support, saying the conservative presence had faded while the left had become more visible, and that the 2019 referendum had closed a chapter in the Henoko fight.
Over the same period All Okinawa candidates lost mayoral race after mayoral race, and according to the published results of each gubernatorial election, Tamaki’s own vote total fell from 396,632 in 2018 to 339,767 in 2022.
Four elections in twelve years
| Election | Winner | Votes | Runner-up | Votes | Turnout |
|---|---|---|---|---|---|
| November 2014 | Takeshi Onaga | 360,820 | Hirokazu Nakaima | 261,076 | 64.13% |
| September 2018 | Denny Tamaki | 396,632 | Atsushi Sakima | 316,458 | 63.24% |
| September 2022 | Denny Tamaki | 339,767 | Atsushi Sakima | 274,844 | 57.92% |
| September 2026 | Genta Koja | 423,124 | Denny Tamaki | 276,060 | 61.57% |
Figures for 2026 come from the Okinawa Prefectural Election Commission’s final count of September 14, 2026, and earlier years from the published results for each election. The 2014 and 2022 races were multi-candidate contests in which Mikio Shimoji took 69,447 and 53,677 votes respectively, while 2018 and 2026 were effectively two-way races. Koja’s total is the largest ever recorded in an Okinawa gubernatorial election, although the Ryukyu Shimpo also notes that the turnout of 61.57 percent was the fourth lowest in the prefecture’s history.
The 2019 referendum, the courts, and Japan’s first substitute execution
According to the Ryukyu Shimpo’s report of the official result of the prefectural referendum of February 2019, 434,273 voters, or 71.7 percent of those who took part, opposed the landfill work at Henoko, against 114,933 in favor and 52,682 choosing neither, on a turnout of 52.48 percent. The prefecture used that result as the basis for refusing to approve a design change needed for the soft seabed on the Oura Bay side.
In December 2023 the central government used a substitute execution under the Local Autonomy Act, the first of its kind, to grant that approval in the prefecture’s place after the governor declined to do so. In March 2024 the Supreme Court rejected the prefecture’s final appeal and the defeat became final.
Work on improving the soft seabed then moved ahead, and soil placement in Oura Bay began. What the prefecture still held were individual administrative procedures, remaining litigation, and its own public advocacy. The construction did not stop under Tamaki, and it would not have stopped under a third Tamaki term either.
What the project costs and when Futenma might return
The Defense Ministry revised its estimate in December 2019 to a total cost of about 930 billion yen, roughly 2.7 times the original figure, with about twelve years of work required after approval. On that schedule the return of Marine Corps Air Station Futenma falls in the 2030s at the earliest.
The date is not Tokyo’s to give on its own. The return is governed by a bilateral agreement with the United States, so the Japanese government cannot promise a day by itself. Meanwhile, according to Defense Ministry figures on the base burden, about 70 percent of the land area of facilities used exclusively by US forces in Japan sits in Okinawa, where those facilities take up roughly 8 percent of the prefecture’s land.
Why household income became the louder issue
According to Okinawa Prefecture’s own prefectural accounts for fiscal 2023, per capita prefectural income was about 2.32 million yen, and it has sat at the lowest level in the country for a long time. Tourism revenue has grown without translating reliably into wages.
Koja’s official platform, published during the 2026 campaign, sets that number against a target of 5 million yen in ten years, alongside a goal of raising tourism revenue from about 1.07 trillion yen to 2 trillion yen, plus relief on social insurance contributions and help with education costs. Tamaki campaigned on a circular economy, a prefectural fund for people outside existing welfare programs, and transport reform as his top priority, and argued that the economy was already growing.
The field narrowed before voting began
Mikio Shimoji, a former member of the House of Representatives who had declared his candidacy in July, signed a four-point policy agreement with the LDP in late August covering child poverty, a summit bid, a railway project and an early return of Futenma, and withdrew from the race. The conservative vote, split in 2014 and 2022, ran in one channel this time.
Tamaki for his part asked the parties around him for “support” rather than formal endorsement, and his seven policy pillars did not include Henoko by name.
The capsizing that turned attention on the protest movement
In March 2026 two protest boats capsized off Henoko, killing a high school student and a pastor and injuring eighteen people. The organization operating the boats is a constituent group of All Okinawa, and on social media the accident was tied to Tamaki. The Yomiuri Shimbun reported that pressure on the protest movement shaped the campaign’s strategy, but no evidence connects the accident directly to the election result.
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The Anger About the Bases Stayed, and the Prefecture Changed Who It Trusted
A shared “no” could not hold different expectations of governing together
All Okinawa lost less because opposition faded than because a single shared objection cannot organize twelve years of expectations about how a prefecture should be run. Conservative business owners and left-wing parties agreed about Henoko and disagreed about economic policy and about how to deal with Tokyo. The thinning of the coalition began before the substitute execution, and the court defeat and the construction came after.
The departures describe a loop. As conservative influence inside the coalition weakened, staying became less worthwhile, which increased the dependence on parties and protest organizations, which in turn made it harder for conservatives and centrists to take part. Onaga was the guarantee that a conservative could stand inside that camp and remain one, and no replacement mechanism appeared after he died.
Holding a movement together rewards never moving. Winning a governor’s race requires a majority assembled out of wages, childcare, transport and administrative competence. Tamaki had policies in those areas and a record he defended. According to Kyodo News’s exit poll of 2,909 voters at 60 locations on September 13, 2026, 78.7 percent of those who named economic revitalization as their main issue voted for Koja, who offered a large round number instead.
Why the result is not a referendum on Henoko
In the same Kyodo exit poll, 49.5 percent named economic revitalization as the issue that mattered most to them and 20.9 percent named the base problem, and 72.9 percent of that second group voted for Tamaki. Almost 31 percent of people who voted for Tamaki in 2022 switched to Koja, and Koja led in every age group under 60. Among voters with no party affiliation, however, Tamaki led with 56.2 percent.
Opinion on Henoko itself moves with the question and the sample.
| Survey | Date and sample | In favor or accepting | Opposed | Other or no answer |
|---|---|---|---|---|
| Asahi Shimbun, Okinawa Times and QAB joint poll | September 5 and 6, 2026, eligible voters | 35% | 37% | 28% |
| Kyodo News exit poll | September 13, 2026, people who voted | 50.2% | 43.8% | Not published |
The two rows cannot be read as a trend. One surveys eligible voters and the other people leaving polling stations, and the wording differs, with one asking about support and the other about acceptance. The 2019 referendum, in which 71.7 percent opposed, was a statutory vote on a single question and belongs in a different category again.
What the numbers support is narrower than a rightward turn. Among voters who put the economy first, Koja was dominant. What those switching voters think about the bases is not something this data can say.
What exactly would be doubled?
Koja’s pledge, as set out on his official campaign site in 2026, is to raise per capita prefectural income from about 2.32 million yen to 5 million yen over ten years. That indicator covers corporate profits as well as wages and is divided by the whole population, so it is not an average pay packet.
Campaign material also used the phrase “double your take-home pay.” A fact check by the Ryukyu Shimpo rated that misleading, noting that prefectural income and take-home pay are different measures, and Koja himself said that a student’s hourly wage would not double. His explanation is that the doubling comes from prefectural income growth plus subsidies and lower social insurance costs.
The open questions are the route by which tourism revenue reaches wages inside the prefecture, and which number will be used in ten years to judge whether the promise was met.
Can a cooperative governor extract a return date for Futenma?
The first thing Koja asked for on election night was a date. Not fighting Tokyo in exchange for concrete results from Tokyo is the standard by which this administration will be measured. The Ryukyu Shimpo reports that he is considering abolishing the prefectural section that has handled the Henoko litigation and advocacy, which removes one of the places where the prefecture registered disagreement as an institution.
The case for continuing to object also survives the election. Tamaki argued in defeat that it was legitimate to refuse to accept a contradictory plan pushed through against the referendum result. Criticism of a procedure in which the state acts in place of an elected prefecture, the open-ended cost and schedule of the soft seabed work, and the fact that Henoko’s completion would not end the burden are all points that remain under a cooperative governor.
The return date is also not Tokyo’s alone to set, and the concentration of US facilities in Okinawa will not change much either. If designations that make southwestern airports and ports easier for the Self Defense Forces to use continue, the burden grows in a different shape. Cooperation can be a way to obtain results, and it carries the cost of being seen as having given up an independent voice.
Why English language coverage read the vote through Taiwan
The headlines after the result treated this as a security story. Reuters wrote that a candidate backed by the Takaichi government had won and unseated an opponent of the military build-up across islands near Taiwan and China, and Bloomberg headlined a Takaichi ally winning and aiding build-up plans. Before the vote, The Japan Times and the US military newspaper Stars and Stripes had put the economy first, with Stars and Stripes writing that bases had taken a back seat to pocketbook concerns.
Forum discussion moved along similar lines, arguing about whether the bases protect Okinawa or make it a target, and about whether the real beneficiary is Washington or Tokyo. The thing that travels least well is that wariness about China and resentment about the bases coexist inside the same voters.
That resentment has a history running alongside the security debate. According to prefectural police statistics compiled by the Ryukyu Shimpo, more than 6,000 penal code offenses by people connected to the US military were recorded in the half century after reversion, including about 590 violent crimes such as homicide, robbery, arson and sexual offenses. A tally by the Okinawa Times puts the rate of violent crime per head among people connected to the military at more than three times the rate among residents. Military personnel skew young and male, so the comparison needs that caveat, and the accumulated anger is real regardless of how the China question is answered.
Disinformation circulated, and it cannot be shown to have decided anything
Late in the campaign a mass email impersonating Tamaki claimed that renaming the prefecture was part of his platform and promised gifts to people who voted for him. His office denied sending it and moved toward a criminal complaint.
An analysis by the Ryukyu Shimpo and two other regional papers, published in September 2026, examined 2,871 election-related YouTube videos posted in the week after the campaign opened. Among the 30 most viewed, every one of the 18 whose origin could be identified came from outside Okinawa, and 20 were negative toward the incumbent. Fake posters apparently generated with AI also circulated.
Three questions have to be kept apart. That false material circulated is documented. Who made it is not: the email’s sender was never identified, and the content’s slant is not evidence of authorship. How many votes it moved has not been measured at all.
Complaints under the election law pointed both ways. According to the prefectural election commission’s announcement reported by the Okinawa Times in August 2026, the commission ordered the removal of 367 posters and banners carrying candidate names, 200 of them connected to Tamaki and 149 to Koja.
Pre-election reporting also disagreed with itself. Okinawa Television, the Ryukyu Shimpo and Kyodo News described a close race, while a joint poll by QAB, the Okinawa Times and the Asahi Shimbun put Koja slightly ahead. No outlet forecast a margin of 147,000 votes. In the Okinawa Television, Ryukyu Shimpo and Kyodo News survey of September 5 and 6, 2026, undecided voters were under 10 percent of 1,007 respondents, so a late surge among them does not account for the gap, and the gap alone is not evidence that anyone manufactured a horse race.
Japanese Reactions to the Okinawa Governor Election
What follows is the Japanese-language conversation on X on and around election night. It is not a measure of Japanese public opinion, and no survey has asked about most of it. The pattern is worth recording because the vocabulary differs from the English coverage: where Reuters and Bloomberg wrote about a Takaichi ally and a military build-up, Japanese media and party accounts framed the same result as a conservative newcomer and a change of prefectural government.
Engagement figures are the values shown on X as of September 14, 2026. The quoted passages are translated excerpts, and the posts themselves are embedded above each translation. Individual accounts replying to these posts are not quoted here.
The single most widely shared piece of information was the projection itself, called at the moment polls closed.
Okinawa gubernatorial election: newcomer Genta Koja projected to win. Endorsed by the LDP and five other parties, he defeats incumbent Denny Tamaki and other candidates.
NHK News, September 13, 2026 (headline, translated by Sekahan)
That post had drawn about 23,000 likes by September 14. The phrase it used, endorsed by the LDP and five other parties, is the closest Japanese equivalent of the “LDP-backed” formula that English outlets settled on.
The most-liked post from any news organization used a different label.
Okinawa gubernatorial election: conservative newcomer Genta Koja projected to win his first term, defeating incumbent Denny Tamaki and others.
Sankei Shimbun, September 13, 2026 (headline, translated by Sekahan)
With about 34,000 likes, that was the most-liked media post of the night. “Conservative newcomer” carries a different emphasis than “Takaichi ally,” locating the story in Okinawa’s own long division between conservative and progressive camps rather than in Tokyo’s security agenda.
The LDP’s own account explained the win without mentioning the bases at all.
LDP-endorsed Genta Koja wins his first term. “Okinawa, forward.” A steady appeal that reached broadly. It is the first time since 2010 that an LDP-endorsed candidate has won the governorship, and at 42 he is the youngest since the reversion. Secretary-General Toshimitsu Suzuki said the party wants to support the Koja administration with everything it has, and Election Strategy Committee Chair Yasutoshi Nishimura said the strongest reason for the win was that the feeling that Okinawa has to change gradually took hold.
Liberal Democratic Party public relations account, September 13, 2026 (excerpt, translated by Sekahan)
Tamaki’s own most-shared message from the final stretch of the campaign shows what the losing side was arguing.
Okinawa’s economy is growing steadily. We have been checking it every three months for three years now. Okinawa’s economy is not in decline. On security, rather than strengthening deterrence, we build trust through dialogue. It is because there is peace that there can be an economy. No one left behind. I will not waver.
Denny Tamaki, September 8, 2026 (excerpt, translated by Sekahan)
That post drew about 14,000 likes, a fraction of the reach the result itself achieved a few days later. Read next to the exit poll, in which about half of voters named the economy as their top issue, the gap between “the economy is not in decline” and what voters were feeling about their own households is the clearest single line in the Japanese conversation.
After the result, the argument on X moved to Tamaki’s remark that the outcome was painful if public opinion had been distorted by attacks from outside the prefecture. Replies from accounts identifying themselves as Okinawa residents pushed back hardest, which is a reminder that the analyses showing most election videos and posts originated outside Okinawa do not establish what those posts did to the vote.
The Prefecture Chose Where to Spend the Authority It Actually Has
This result does not reduce to a rightward turn, a rejection of the base opposition, or a victory for disinformation. Voters who put the bases first still chose Tamaki, and opinion on Henoko flips depending on who is asked and how. What is clear is that most voters who put the economy first changed who governs.
The choice underneath was about where to spend authority. A governor cannot stop the construction at Henoko, and the prefecture had run out of legal moves before the campaign started. A majority decided to seek results in the areas where the prefecture does decide, and in doing so acquired a new test: whether a cooperative administration can raise incomes and reduce the base burden at the same time.
Four years will show how far wages and household costs move through measures the prefecture controls, and how specific the conditions for returning Futenma become in decisions that require Tokyo and Washington. The ten-year income target and an actual return date sit beyond that.
Frequently Asked Questions
Who won the 2026 Okinawa governor election and by how much?
Genta Koja won with 423,124 votes against 276,060 for the incumbent Denny Tamaki, a margin of about 147,000, according to the final count published by the Okinawa Prefectural Election Commission on September 14, 2026. Turnout was 61.57 percent. Koja, 42, was endorsed by the Liberal Democratic Party and five other parties and is the first LDP-backed candidate to win the office since 2010.
Does the result mean Okinawans now support the Henoko relocation?
Not in any straightforward way. In Kyodo News’s exit poll of September 13, 2026, 50.2 percent of voters said they accepted the relocation and 43.8 percent opposed it, but a joint Asahi Shimbun, Okinawa Times and QAB poll of eligible voters on September 5 and 6, 2026 found 35 percent in favor and 37 percent against. In the same exit poll, 72.9 percent of voters who named the bases as their main issue voted for Tamaki. The economy, named by 49.5 percent, is what moved.
Can the new governor stop or change the construction at Henoko?
No. The central government approved the disputed design change itself through a substitute execution under the Local Autonomy Act in December 2023, and the Supreme Court confirmed the prefecture’s defeat in March 2024. Work on the soft seabed has proceeded since. The Defense Ministry’s own schedule puts the return of Futenma in the 2030s at the earliest, and the date depends on a bilateral agreement with the United States rather than on Tokyo alone.
How did Japanese social media react to the Okinawa governor election?
The projection itself was the most shared item, and the framing differed from English coverage. Japanese media accounts described a conservative newcomer and a twelve-year change of prefectural government rather than a Takaichi ally aiding a military build-up, and the LDP’s own post explained the win through prefectural income and renewal without mentioning the bases. After the count, the loudest argument on X was about Tamaki’s suggestion that attacks from outside Okinawa may have distorted public opinion, with some of the sharpest replies coming from accounts identifying themselves as residents of the prefecture.
Sekahan on YouTube
We publish video summaries of articles like this one, along with short clips built around Japanese reactions.
Reference Links
- Okinawa gubernatorial election, final vote count (PDF)๏ฝOkinawa Prefectural Election Commission
- Koja becomes governor, defeating All Okinawa with a record 423,000 votes๏ฝRyukyu Shimpo
- Exit poll: bases named by only 20 percent, economy by 49 percent, most going to Koja๏ฝKyodo News via Okinawa Times
- Gubernatorial poll: Koja a step ahead, Tamaki closing hard๏ฝQAB Ryukyu Asahi Broadcasting
- Policy platform๏ฝGenta Koja official site
- Fact check: is Koja’s “double your take-home pay” true?๏ฝRyukyu Shimpo
- Litigation over the Henoko base construction๏ฝOkinawa Prefecture
- Okinawa election win may give Tokyo freer hand on military build-up๏ฝReuters
