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The Sister Cities Exchange

What Was Your Most Meaningful, Life-Changing Experience?

What was your most meaningful, life-changing experience?   If you talk to those involved with Sister Cities International (SCI), they will tell you about their high school exchange with their sister city in Shizuoka, Japan, or the day they received a letter from their friends in Sunderland, UK after September 11th, or they may tell you about when they went to Zomba, Malawi to open a composting site.   When you meet people from around the world, your view of humanity changes. Your support of SCI has enabled us to spread peace and prosperity through people for the past 60 years. In 2016, we invite you to be part of this thriving network of individuals, businesses and organizations by investing in SCI.  Every day we see reports of conflict, hatred, and...view

Inaugural Gala

2017 Inaugural Gala

In advance of Inauguration Day, join Sister Cities International at the 2017 Inaugural Gala for an exciting gathering of diplomats, members of congress, municipal officials, and community and citizen leaders in celebration of the inauguration of our Honorary Chairperson, the President of the United States. The Gala will take place at the Organization of American States in Washington, DC on January 17, 2017 from 7:00 - 11:00pm.  Visit for more information and to register. view


Join Us for #SisterCitySunday

We’re excited to announce that the Delegation of the European Union to the United States and Sister Cities International are teaming up to highlight the importance of people-to-people relationships in global peace-building with #SisterCitySunday, an online campaign starting on October 2, 2016. Each Sunday for 28 weeks, we will share dynamic content from each EU member state, featuring a story about business, cultural, humanitarian, municipal, or educational partnerships between a U.S. and EU sister city. There are over 600 EU-U.S. partnerships in the Sister Cities International network with some of the most robust and historic sister city programming to date. From Portugal to Finland, stories will illustrate the great impact of subnational diplomacy and exchange...view

Take Action

This year marks a pivotal moment during which Sister Cities International is celebrating 60 years of peace through people. Get involved in this momentous year.
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As the world becomes smaller, and connections online become more frequent than face-to-face interactions, multicultural understanding at the community level is more important than ever. Sister Cities International enables citizen diplomats in communities across the world to develop relationships with communities in other countries that are based on cultural understanding and mutual cooperation.Donate