Sister cities

Semarang, Indonesia Kawasaki, Japan Iwaki, Japan Shizuoka, Japan Kagoshima, Japan Okinawa, Japan Shandong, People's Republic of China Jiangsu, People's Republic of China Qingdao, People's Republic of China Macau, People's Republic of China Kaohsiung, Taiwan Hai Phong, Vietnam Oakland, California, United States Tacoma, Washington, United States San Diego, California, United States San Francisco, California, United States Jersey City, New Jersey, United States Pittsburgh, Pennsylvania, United States Newcastle, Australia İzmir, Turkey Yaroslavl, Russia