Sister Cities International

International AffairsDistrict of Columbia, United States51-200 Employees

Sister Cities International is a nonpartisan nonprofit organization based in Washington, DC, founded in 1956 by President Dwight D. Eisenhower. It serves as the national membership association for individual sister cities, counties, and states across the United States, connecting tens of thousands of citizen diplomats and volunteers through a network of hundreds of partnerships in 150 countries on six continents. The organization facilitates international collaboration aimed at promoting peace through mutual respect, understanding, and cooperation, leveraging cross-cultural exchanges and community-to-community initiatives.

Its primary audience comprises U.S. municipalities and affiliated entities seeking structured sister-city engagements, with the goal of addressing global and local challenges through bilateral partnerships. Recent activities include coordinating youth leadership programs and fostering international collaboration through partnerships and summits, highlighting ongoing efforts to expand impact across multiple regions and topics. The organization operates within the international affairs sector, coordinating a nationwide network that supports and expands its 570 member communities.

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