Sister Cities Since 1978

The Cupertino Toyokawa Sister Cities (CTSC) organization promotes cultural awareness and friendship between the cities of Cupertino and Toyokawa, Japan.  The relationship celebrates its 45th anniversary in 2023

The friendship is built through the annual student exchange program, and also the quinquennial (every five years) adult exchange program. 

The cultural awareness is promoted through the annual Cupertino Cherry Blossom Festival (CBF) held every year on the last weekend in April. 

If you have any questions or comments, please contact the Cupertino-Toyokawa Sister Cities organization.

Cupertino-Toyokawa Sister Cities Inc. hosted
Community Bell-Ringing for Peace
Sunday, August 6, 2023 @ 2PM

Cupertino Memorial Park

In 2020, Cupertino-Toyokawa Sister Cities Inc. (CTSC) held a city-wide Bell Ringing for Peace Zoom event  recognizing 75 years of peace between the US and Japan.  In addition to the  well-known atomic bombings of Hiroshima and Nagasaki during WWII, Cupertino’s sister city of Toyokawa, Japan was also bombed as it was the location of Japan’s Naval Armory.

This year, CTSC held the fourth annual event to ring bells for Peace and we invited the community to join us.  You can view the 2023 event video here ->

Our Programs

Cupertino Cherry Blossom Festival

An annual community event in honor of our sister city, Toyokawa, typically held on the last weekend in April (Spring) at the Cupertino Memorial Park.

The 39th festival was held on April 29th - 30th, 2023 at Memorial Park, Cupertino. 

Thank you All for visiting and supporting our festival!!!

We look forwared to seeing you again on the weekend of April 27 - 28th, 2024!

Cherry Blossom Festival

To view past festival highlights, please visit our 

To view a special message from both city's Mayors :

Student Delegation Exchange

Also known as the Junior Goodwill Program, Cupertino and Toyokawa Student Delegation groups visit bilaterally every year.

Selected students from Cupertino and Toyokawa are introduced to cultural and educational activities while staying with their host families.

Due to the pandemic the student exchange program has been postponed. It is likely it will resume in 2024. 

Adult Delegation Exchange

CTSC Adult Delegation visit bilaterally every five years.  

The 40th year celebration included a visit from Toyokawa delegates to Cupertino in July 2018 and reversely, Cupertino delegates to Toyokawa, in November 2018.

Cupertino Delegation members were warmly welcomed in Toyokawa, November 16, 2018.

Farewell group photo for Toyokawa delegation with Mayor Darcy Paul and Mayor Minori Yamawaki at the Cupertino City Hall, July, 2018

Community and Volunteering

CTSC Board and Committee Members are actively involved in a variety of community and volunteering activities. 

June 15th, 2019 CTSC hosted the first CJSCN Silicon Valley and South Region meeting at the Cupertino City Hall. 

Source: CJSCN Newsletter July 2019

April 26, 2019 CTSC received the Cupertino Chamber of Commerce's Organization of the Year STAR award.

Source: CJSCN Newsletter July 2019