Founded in 1980, we are a nonprofit citizen diplomacy network creating and strengthening partnerships between Seattle and Nantes in an effort to increase global cooperation at the municipal level, promote cultural understanding, and support educational exchanges.

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About Seattle Sister Cities

Seattle is proud to be a leader in promoting and developing sister city relationships with 20 international communities, including Nantes.  Our program has a strong 60+ year history of connecting Seattlites to the world and shaping Seattle’s global image. Each of our sister city relationships is managed by an independent 501(c)(3) non-profit association. Each nonprofit organizes programs, activities, and cultural exchanges with local Seattle residents and friends around the world. 

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About Sister Cities International

President Dwight D. Eisenhower founded Sister Cities International in 1956, which serves as the national membership organization for over 570 sister cities, counties, and states across the United States with relationships in 2,300 communities in 150 countries. This sister city network unites citizen diplomats and volunteers who work tirelessly to promote peace and understanding through programs and projects focusing on education, youth, arts and culture, and humanitarian assistance. Sister Cities International celebrated its 60th anniversary in 2016.