Joining the Sister Cities International network is a commitment to promoting peace, respect and mutual understanding across borders. Sister city relationships enable communities to realize and strengthen cultural and historical bonds, increase youth education opportunities, develop diverse economies, and collaboratively tackle emerging issues. Our relationships foster thriving, globally competitive communities.
If your community is interested in becoming part of a network of nearly 300 member communities, 1,400 partnerships, and tens of thousands of citizen diplomats, please fill out the appropriate application below.
Click here to learn more about the Benefits of Membership
Click here to learn more about the Benefits of Membership for Global Members
Click here to learn more about Introducing Sister Cities to your Community
Click here for a Quick Guide to Establishing a Sister City
| Community Population | Annual Cost | |
|---|---|---|
| Under 5,000 | $190 | Apply Now |
| 5,000‐10,000 | $310 | Apply Now |
| 10,000‐25,000 | $440 | Apply Now |
| 25,000‐50,000 | $610 | Apply Now |
| 50,000‐100,000 | $810 | Apply Now |
| 100,000‐300,000 | $1,030 | Apply Now |
| 300,000‐500,000 | $1,380 | Apply Now |
| 500,000‐1,000,000 | $1,910 | Apply Now |
| 1,000,000 and above | $2,280 | Apply Now |
| Community Population | Annual Cost | |
|---|---|---|
| Under 100,000 | $750 | Apply Now |
| 100,000‐500,000 | $1,750 | Apply Now |
| Above 500,000 | $2,500 | Apply Now |
Sister Cities International knows how to create and foster environments where relationships take seed and grow, in what’s maybe the most fertile soil of oil: curiosity about discovering the familiar in the unfamiliar.