Founded by President Eisenhower in 1956.
Washington, DC
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Sister Cities International wishes all who observe a meaningful Yom Kippur. May this day of reflection and renewal bring peace, forgiveness, and hope for the year ahead. 🤍
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🎉 YLS 2027 APPLICATIONS ARE NOW OPEN! 🎉
📅 YLS Dates: June 20–26, 2027
📝 Apply By February 1, 2027
Join young leaders ages 12-18 for a week of leadership development, cultural exchange, diplomacy, and unforgettable experiences in Washington, DC🌎
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🍎🍯 Shanah Tovah! 🍯🍎
Sister Cities International wishes all who celebrate a happy and sweet Rosh Hashanah! May the Jewish New Year bring peace, connection, and new beginnings to communities around the world.
Shanah Tovah U’Metukah! ✨
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Today, Sister Cities International remembers the lives lost on September 11, 2001, and honors the courage and resilience of those who responded and helped communities come together in the aftermath.
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Welcome to the Sister Cities International network, Indio, California!🌎
We’re excited to welcome the City of Indio as a new member of our global community and look forward to supporting new connections, exchanges, and partnerships around the world.
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Happy Labor Day! 🇺🇸
Today, we celebrate the contributions and achievements of workers who help strengthen our communities every day.
From Sister Cities International, thank you to all who make our communities thrive! ❤️
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🌎 September Member Highlight: Clearwater–Nagano Sister City Partnership! Read the full Member Highlight to learn more about this enduring partnership!
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🎨 We’re excited to welcome our newest Visionary Supporter, Rebelle!
Rebelle is donating software licenses to 1st, 2nd & 3rd place winners in both the Classic Art and Digital Art categories of YAAS 2027. Thank you for supporting the next generation of artists!
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🎨 YAAS 2027 applications are NOW OPEN! 🌎✨
Young creators ages 12–18 are invited to share their creativity through classic art, digital art, photography, poetry, essays, and original music inspired by this year’s theme, “A Tapestry of Cultures and the Threads That Connect Us.”
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📸 Happy World Photography Day! 🌎
Celebrating the people, connections, and memories that make Sister Cities partnerships special. Share your favorite moments with #SisterCitiesPhotography!
#WorldPhotographyDay #SisterCities
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The 2027 YAAS theme is here!
“A Tapestry of Cultures and the Threads That Connect Us” 🧵🌎
Learn more about the 2027 YAAS theme and upcoming submission details on our website!
#YAAS2027 #YoungArtistsAndAuthors #SisterCities
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That’s a wrap on the Sister Cities International 70th Anniversary Homecoming! From July 22–25, 305 attendees from around the world joined us in Washington, DC for four memorable days celebrating 70 years of citizen diplomacy. Thank you to everyone who joined us!
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Traditional diplomacy evokes images of formal, high-level negotiations between foreign leaders, yet grassroots initiatives can often have the most impact.
Join us at the Sister Cities International 70th Anniversary Homecoming! Learn more and register at sistercities.org
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🏆 The 2026 SCI Annual Award winners will be announced at the 70th Anniversary Homecoming on July 24 in Washington, DC!
Celebrate excellence in citizen diplomacy and sister city programs worldwide. ✨
Register: sistercities.org #SCI70
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July Member Spotlight!
Fountain Hills, Arizona, and Ataco, El Salvador, recently distributed 280 food packages to local seniors through the Meals for Elders program, showcasing the lasting impact of their sister city partnership.
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Cities are shaping the future of global partnerships. 🌍 Join our Cities Leading mayoral panel at the Sister Cities International 70th Anniversary Homecoming, July 22–25 in Washington, DC. Register today: sistercities.org #SCI70 #CitizenDiplomacy
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Four weeks until SCI’s 70th Anniversary Homecoming! As part of the celebration, Dan Mickelson, Chief of Sports Diplomacy at the U.S. Department of State, will lead a conversation on the growing role of sports diplomacy on Thursday, July 23. Register at sistercities.org
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5 weeks left! Join us on July 23, for the State Department Regional Briefings, featuring diplomats from the State Department. These briefings offer a unique opportunity to better understand the global context in which citizen diplomacy operates. Register: sistercities.org
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6 weeks until Sister Cities International’s 70th Anniversary Homecoming. As we count down, we’re looking back at our 60th Anniversary in Washington, DC, where youth leaders and communities strengthened global connections. The past laid the foundation. The future is ours to build.
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During the month of May, Sister Cities International was proud to welcome three new member cities: East Palo Alto, California; Orland Park, Illinois; and West Chester Township, Ohio.
Visit sistercities.org to learn more about SCI membership and how to get involved!
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