Sister cities

Twinned with San Diego

9 of 19 in this atlas

San Diego maintains twinning ties with municipalities across four continents, from Tijuana and Ciudad Juárez in Mexico to León de los Aldama, Panama City, Warsaw, Yokohama, and the Chinese cities of Quanzhou and Yantai, alongside Taichung in Taiwan. Every pairing recorded here is mutual, with each city naming San Diego in return, unlike arrangements elsewhere marked one-sided.