Membership for U.S. Cities

In addition to resources and expertise, membership with Sister Cities International ensures that your program is in the largest network of citizen diplomats in the world, and is a part of a peacebuilding tradition that has made the sister cities movement spread across the globe. To find out if your city is already a member please visit our City Directory.

How Do You Join?

CLICK HERE to download our membership application. CLICK HERE for more information about membership rates.

Why Join?

With affordable rates based on the population of a community, Sister Cities International provides members with unique support and resources listed below.


  • Concord-Freeport Cities Seeking CitiesSister Cities Networking: At Sister Cities International, we believe in peer-to-peer learning. Want to host a youth exchange? Lead a business delegation? We can connect you with other experienced members for an exchange of ideas to help you find solutions.
  • Connect with the Diplomatic Corps: Sister Cities International works closely with the U.S. Department of State and its diplomats as well foreign embassies in the U.S. Let us connect you with the right officials and help you get the answers and support you need.
  • Annual Membership Directory: Be featured in the Annual Directory, Sister Cities International’s flagship publication! This listing of all member cities and their partnerships is distributed to our entire network, municipal and federal governments, and the diplomatic community.


  • Young Artists and Authors ShowcaseCities Seeking Cities: Looking for a sister city? Our Cities Seeking Cities program provides you dedicated staff assistance and the necessary connections to municipal officials, twinning organizations, and the diplomatic community to help you find a partner city.
  • Governance and Policy Services: Confused about how to start a sister city organization, structure your bylaws, or establish other policies to lay the foundation for a sister city program? We will guide you at every step as you establish and grow your partnerships.
  • Annual AwardsYoung Artists Showcase & Authors Showcase: Open to all youth in member cities, the Showcase is a chance for them to submit artwork, essays, and poems inspired by an annual theme. Winners receive cash prizes and top entries tour the U.S.
  • High School Homestay: This exchange program enables member cities to host high school students for a year or semester. We assist with processing exchange visas for the youth and make it a simple and rewarding experience for students and host families.
  • Annual Awards: The Awards highlight sister city programming excellence in a number of competitive categories and programmatic areas.


  • Share Your Story: Let us tell your story to the world. We publicize your success through website articles, social media, and press outreach.
  • Member Profiles: Show off your sister city program with a customizable member profile as well as profiles for all of your sister city partnerships.
  • Event & Delegation Promotion: Need help promoting an upcoming inbound or outbound delegation? We can help spread the word through targeted emails, social media, and press outreach.
  • Crisis Communications & Media Relations: International events can catch any communications team off guard. We can guide you on how to effectively represent your program in times of crisis or controversy. Our media partnerships and media outreach can ensure that your activities get the attention they deserve.


  • Visa Consultations: Worried about an upcoming delegation? Get pro bono consultations from immigration lawyers for questions regarding inbound delegations or visa applications.
  • Background Checks: All Sister Cities International members receive access to discounted Intellicorp’s background check services for host families, chaperones, and new hires.
  • Insurance: Get access to discounted traveler’s insurance for individuals or groups through Sister Cities International’s partnership with International Medical Group (IMG).
  • CertificateCertificates: Commemorate a new sister city partnership or anniversary with our custom-made certificates.
  • Toolkits and Templates: Get access to handy guidelines, templates, and best practices for exchanges, policies, and other topics relevant to sister city program development.
  • Grants Database: Sister Cities International provides members with information on opportunities from private foundations and public organizations to help you find resources to expand your program.
  • Webinars: Build key skills and hear from experts in our webinar series. Topics include grant-writing, fundraising, and volunteer recruitment.
  • Discounted Rates: As a valued member of Sister Cities International, you are eligible for discounted member rates to all our conferences and events.

CLICK HERE to become a member.

2017 Member Rates

Sister Cities International will be implementing a small dues increase of approximately 2% in the 2017 billing cycle. All dues increases are recommended by Sister Cities International’s Membership Committee and receive the approval of the full Board of Directors. Please plan your budgets accordingly and if you have any questions or concerns please contact Adam Kaplan at

Population Category 2017 Rates 2018 Rates Increase
Under 5,000 $180 $185 $5
5,000-10,000 $295 $300 $5
10,000-25,000 $425 $430 $5
25,000-50,000 $590 $595 $5
50,000-100,000 $780 $790 $10
100,000-300,000 $990 $1,000 $10
300,000-500,000 $1,325 $1,340 $15
500,000-1,000,000 $1,835 $1,855 $20
1,000,000 and above $2,190 $2,215 $25

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.
More Information


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