Japanese local government
and mayors of largest cities
By Andrew Stevens, City Mayors Fellow

ON THIS PAGE: Japanese cities and regions | Japan's mayoral system | Japan's political parties | Mayors of largest Japanese cities

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Japan's mayors
December 2022: Japan, the world’s third-largest economy by GDP and 10th largest country by population, is a unitary state, governed at national level by a Prime Minister and Cabinet largely chosen from the bi-cameral National Diet. The two-tier local government system in Japan is composed of 47 prefectural governments (roughly akin to a county), each headed by a directly-elected Governor (elected on a four-year term) and 1,719 municipalities, each headed by a directly-elected Mayor (elected likewise).

The nature and role of local government is codified in the Local Autonomy Law (LAL) issued under the post-war Constitution of Japan of 1947, which guarantees local autonomy against the national government, who retain a degree of control over localities through subsidies. Following years of debate, in 1995 a Decentralization Promotion Law (DPL), backed by a standing committee, was passed to make the roles between central and local governments clearer and promote enhanced autonomy, which was intended to promote localisation and prepare for an ageing society. This movement coincided with a voluntary municipal merger process with financial assistance from central government, with a statute aimed at enhancing the administrative capacities of municipalities, which has seen their number decrease from 3,232 as of March 1999 to 1,719 today.

Japan’s cities and regions
With the exception of the capital Tokyo and the island of Hokkaido, most prefectural governments are styled in Japanese as ‘ken’ (e.g. Hiroshima-ken, as opposed to Hiroshima-shi, the city government), with the two historically significant (as former capital etc.) prefectures of Kyoto and Osaka known as ‘fu’ (e.g. Osaka-fu, as opposed to Osaka-shi, the city government).

Of the municipalities, there are several classes of city, with the most basic and numerous class of ‘city’ broadly enjoying the same powers and status as towns or villages (the designation stemming from its population size, basically more than 50,000 residents).  All cities supply residents with water services, waste collection and disposal, public health, social welfare, parks, environmental services, planning/development control, economic development, fire and rescue, elementary schools and adult education colleges.

40 cities with populations of 200,000 or more were known as ‘Special Cities’ and entitled to provide some degree of prefectural services (such as care services, health, environmental services, urban planning, teacher training etc.) locally, with a further 41 cities of 300,000 or more residents known as ‘Core Cities’ which can provide further additional services. The ‘Special City’ designation was later abolished and merged into the class of ‘Core Cities’, with the population requirement then lowered to 200,000 for these.

The 20 ‘Designated Cities’ each have populations above 700,000 (as well as density requirements and ‘regional’ status) and carry out most services within their jurisdiction rather than under the prefectural government. They are further required to subdivide themselves into ‘wards’ in order to carry out basic functions such as resident registration and tax collection on a more local level. All such designations must be approved by the Cabinet of Japan following an application by the relevant municipality and prefecture.

Tokyo is today unique within Japan as a metropolis (‘to’) rather than prefecture or city level government, with Tokyo Metropolitan Government (headed by a Governor, rather than Mayor) sitting above 23 ‘Special Wards’ in the centre and a further 26 cities, five towns and eight villages in the periphery.

Historically, the Designated Cities owe their origins to the creation of the first local authorities in 1898 in the then principal regional cities outside of Tokyo – Osaka, Kyoto, Nagoya and Kobe.  A 1956 amendment to the LAL allowed these cities (as well as Yokohama) in Japan to receive this Designated City status for the first time, with further cities approved by the Cabinet over the decades up to the 20 as of 2013.  The Core and Special City designations were created under the 1995 DPL process to recognise the growing importance of the second-tier cities by awarding them an intermediate degree of enhanced autonomy.  Some larger Japanese cities, most notably Osaka and Nagoya, have recently expressed their desire to become ‘metropolises’ themselves through merging the prefectural and city tiers, with a national law passed in 2012 to enable this following agreement among the tiers backed by a local referendum. 

Japan’s mayoral system
While Japanese mayors are directly elected for four-year terms with no term limits, most candidates prefer stand as independents and are then backed by local chapters of the main national parties. Foreign nationals cannot vote in Japanese municipal elections and all candidates must be 25 years or older (voters must be aged 18 or older).  Mayors can be subject to recall through residents’ petition, provided basic thresholds are met. City mayors are also assisted in their duties by vice mayors, though any appointment must then be ratified by the city assembly, and in some cases mayors have requested vice mayors be seconded from central government to assist them in policy coordination.

Japan’s designated city mayors are represented by the Designated City Mayors Association, founded in 2003. The association is one of several local government associations of Japan, which are represented outside of Japan in countries such as the US, UK and China by the Council of Local Authorities for International Relations (CLAIR), founded in 1988.

Japan's political parties
CDP – Constitutional Democratic Party (centre-left)
JCP – Japanese Communist Party (left)
JIP - Japan Innovation Party (right)
KP – Komeito Party (centre-right, often stands jointly with LDP)
LDP – Liberal Democratic Party (centre-right)
SDP – Social Democratic Party (left)

Mayors of Designated Cities of Japan
and Governor of the Tokyo Metropolis

Mayor (Mr, Mrs)
Brief résumé
Chiba (962,000) Shinichi Kamiya; Mr Elected in: 2021
Next election: 2025
Born 1973;
Bureaucrat and Deputy Mayor;
Fukuoka (1,464,000) Soichiro Takashima; Mr Elected in: 2010, 2014, 2018, 2022
Next election: 2026
Born 1974;
TV reporter;
Party: Independent with support of LDP/KP
Hamamatsu (801,000) Yasutomo Suzuki; Mr Elected in: 2007, 2011, 2015, 2019
Next election: 2023
Born 1957;
House of Representatives Member (2000-2005);
Party: Independent
Hiroshima (1,174,000) Kazumi Matsui; Mr Elected in: 2011, 2015, 2019
Next election: 2023
Born 1953;
Bureaucrat and diplomat;
Party: LDP/KP
Kawasaki (1,426,000) Norihiko Fukuda; Mr Elected in: 2013, 2017, 2021
Next election: 2025
Born 1972;
Political advisor, Prefectural Assembly Member (2003-2009);
Party: Independent
Kitakyushu (977,000) Kenji Kitahashi; Mr Elected in: 2007, 2011, 2015, 2019
Next election: 2023
Born 1953;
Member of House of Representatives (1986-1990, 1993-2006);
Party: Independent
Kobe (1,545,000) Kizo Hisamoto; Mr Elected in: 2013, 2017, 2021
Next election: 2025
Born 1954;
Bureaucrat and Vice Mayor;
Kumamoto (731,000) Kazufumi Onishi, Mr Elected in: 2014, 2018, 2022
Next election: 2026
Born: 1967;
Prefectural Assembly Member (1997-2014)
Party: Independent with support of LDP/KP
Kyoto (1,474,000) Daisaku Kadokawa; Mr Elected in: 2008, 2012, 2016, 2020
Next election: 2024
Born 1951;
City official;
Party: LDP/KP with support of CDP, SDP
Nagoya (2,264,000) Takashi Kawamura; Mr Elected in: 2009, 2011, 2013, 2017, 2021
Next election: 2025
Born 1948;
Member of House of Representatives (1993-2009);
Party: Tax Cut Japan
Niigata (812,000) Yaichi Nakahara; Mr Elected in: 2018, 2022
Next election: 2026
Born: 1959:
Prefectural Assembly Member (1995-2010); Member of House of Councillors (2010-16)
Party: Independent
Okayama (710,000) Masao Oomori; Mr Elected in: 2013, 2017 and 2021
Next election: 2025
Born 1954;
Party: KP
Osaka (2,666,000) Ichiro Matsui; Mr Elected in 2019
Next election: 2023
Born 1964;
Manager; Osaka Prefecture Assembly Member (2003-2011); Osaka Governor (2011-2019)
Party: JIP
Sagamihara (718,000) Kentaro Motomura; Mr Elected in 2019
Next election: 2023
Born 1970;
Political adviser; Kanagawa Prefecture Assembly Member (2003-2009); Member of House of Representatives (2009-2019)
Party: Independent
Saitama (1,223,000) Hayato Shimizu; Mr Elected in: 2009, 2013, 2017 and 2021
Next election: 2025
Born 1962;
Political Adviser and Prefectural Assembly Member (2003-2009);
Sakai (842,000) Hideki Nagafuji; Mr Elected in: 2019
Next election 2023
Born 1976;
IT company, Prefectural Assembly Member 2011-2019
Party: JIP
Sapporo (1,914,000) Katsuhiro Akimoto; Mr Elected in: 2015, 2019
Next election: 2023
Born 1956;
City official and Vice Mayor;
CDP with support of LDP/KP/SDP
Sendai (1,046,000) Kazuko Kori; Mrs Elected in: 2017, 2021
Next election: 2025
Born 1957;
TV reporter and House of Representatives Member (2005-2017);
Party: Independent with support of CDP/JCP
Shizuoka (716,000) Nobuhiro Tanabe; Mr Elected in: 2011, 2015, 2019
Next election: 2023
Born 1961;
City Assembly Member (1991-1994); Prefectural Assembly Member (1995-2003);
Party: LDP
Tokyo (12,790,000) Yuriko Koike; Ms Elected in: 2016, 2020
Next election: 2024
Born 1952;
TV journalist; Member of House of Representatives (1993-2016); Environment Minister 2003-2006; Defence Minister 2008;
Party: Tokyoites First
Yokohama (3,690,000) Takeharu Yamanaka; Mr Elected in: 2021,
Next election: 2025
Born 1972;
Professor of public health;

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