We are a state-wide non-profit organization operating under the umbrella of Sister Cities International. We provide guidance to all active Illinois Sister Cities.
ISCA was incorporated in the state of Illinois in 2007 and has been a 501 (c)(3) non-profit since 2009.
Read more below!

To build and promote people-to-people relationships, "citizen diplomacy", between Illinois communities, cultures, and countries across the globe.

Provide a forum for communications and interaction among Sister Cities organizations within the State of Illinois. This is done through social media and our Annual Conference.

Provide programming assistance and serve as a resource to local Sister Cities organizations or Illinois cities that wish to become a Sister City.

Promote the programs, activities, and events of Sister Cities organizations across the state. Please visit our Member News Tab above to learn more.

All Illinois Sister Cities are extremely involved in their respective communities. We encourage education, volunteerism, and cultural engagement.
A “sister city” or a “twin town” relationship is a form of legal or social agreement between two geographically and politically distinct localities for the purpose of promoting cultural and commercial ties. Similarities like geography, population, economic needs, and exchanges are solidified through these long-term partnerships. A relationship is officially recognized after the highest elected or appointed official from both communities signs off on an agreement to become sister cities. These relationships are non-political.

Each sister city organization is independent and pursues the activities and thematic areas that are important to them and their community, including:
The possibilities are endless!
Today, Illinois is 3rd most connected state after California and Florida; a leader in the sister cities movement. We have vibrant sister city programs at the grassroots levels, including the winners of state, national, and international awards.
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