Founded in 1956 by President Dwight D. Eisenhower, Sister Cities International (SCI) is a leading nonprofit membership organization headquartered in Washington, D.C. that is dedicated to connecting communities and empowering partnerships worldwide. Our global network connects over 400 U.S. communities with nearly 1800 sister city partnerships in 136 countries. We build long-term relationships where cities and citizens can learn, work, and solve problems together through educational, civic, business, cultural, professional, and technical exchanges and projects.
