Honolulu's Sister City program is administered through the Office of the Mayor. The program has been in existence since May 19, 1959, with the establishment of Sister City relations with Hiroshima, Japan. Since then, Honolulu has established Sister City relations with cities around the world. For further information on Honolulu's Sister City program, please contact us at:

Sister City Program
Office of the Mayor
City and County of Honolulu 530 South King Street Honolulu, Hawaii 96813
U.S.A.