Ibaraki, Japan

Kamisu is a city located in the southeastern most portion Ibaraki Prefecture, in the northern Kanto region of Japan. Kamisu, like its sister city Eureka, is a coastal city about 60 miles east of Tokyo. The city has an estimated population of 94,281.


California, USA

Eureka is the principal city and county seat of Humboldt County in the Redwood Empire region of California. The city is located on U.S. Route 101 on the shores of Humboldt Bay, 270 miles north of San Francisco. The city is considerably smaller than Kamisu with an estimated population of 26,913.


The Eureka-Kamisu Sister City Association was originally founded in 1991. After becoming Sister Cities, Kamisu and Eureka enjoyed a lively relationship into the 1990's and early 2000's.  


EKSCA is committed to promoting global communities through the exchange of arts and culture while developing bonds between the two sister cities of Eureka and Kamisu. The Eureka-Kamisu Sister Cities Association (EKSCA) is an all-volunteer, nonprofit organization promoting citizen diplomacy between Eureka, California, and Kamisu, Japan.

We work to enhance our community’s global awareness through cultural, educational, and humanitarian connections. The organization also brings like-minded people to and from Kamisu and Eureka to develop cross-cultural relationships through youth exchanges, family home-stay and cultural events.