– ICLEI Japan Member Information –

Okayama City

Message from the Mayor of Okayama City 

Masao Omori

Since 2005, Okayama City has been a world leader in promoting Education for Sustainable Development (ESD) to nurture leaders of a sustainable society, and in 2014, the UNESCO World Conference on ESD was held in the city, where the city received high praise for its ESD activities in schools and community centers.
In February 2021, the city announced the Zero Carbon City Declaration, aiming for virtually zero CO2 emissions by 2050, and industry, government, academia, and citizens are working together to achieve a decarbonized society. 

In October 2025, the Global RCE Conference will be held in the city; 2025 marks the 20th anniversary of the start of ESD initiatives in the city. By sharing good practice examples of how to achieve a sustainable society at home and abroad, we hope to further inspire ESD activities in the Okayama region.

We will continue to share information with ICLEI members and work together to create sustainable cities.

Overview of Okayama City 

Okayama City is located in the southwestern part of the main island of Japan on the Okayama Plain, where the Asahi River and the Yoshii River flow into the Seto Inland Sea. The northern part of the city is covered with mountains leading to the Kibi Plateau. Blessed with a mild climate unique to the Seto Inland Sea coast, the city is relatively unaffected by typhoons and has few disasters because there are no active fault lines below the city. 

In addition to the many historic and cultural assets that have been left behind since the ancient Kibi period, a wide variety of wildlife, including nationally important freshwater fish, live and grow throughout the city. As the central city of the surrounding region, the city has a concentration of high-level urban functions such as commerce, medical care, welfare, and education, and is located at the transport crossroads between the Chugoku and Shikoku regions, making it an attractive place to live. 

Basic Information

710,339

Population
(As of 1 May 2025) 

789.95

Area

Okayama City Website

Environmental Initiatives 

Through the Regional Center of Excellence (RCE) for Education for Sustainable Development (ESD) project, which the city have been working on in cooperation with a variety actors since 2005, the city will enhance the functions of the centre for environmental education and learning, and promote ESD activities on the theme of not only the environment but also global issues related to society, economy, and culture.

In addition, with the aim of creating a sustainable city in harmony with nature as set out in the Second Okayama City Environmental Basic Plan, the city will promote environmentally friendly activities, such as citizen participation in environmental protection, aiming for a decarbonized society through lifestyle change, and the thorough promotion of waste reduction and recycling.

Okayama’s SDGs/ESD

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