The provided source material does not contain information regarding a city named Shikou in China. Instead, the source identifies Shikō (also spelled Shiko or Shikou) as a masculine Japanese given name.
Notable individuals with this name include Kagami Shikō, a Japanese haiku poet who lived from 1665 to 1731; Shikō Imamura, a Japanese artist born in 1880 and deceased in 1916; and Shikō Munakata, a Japanese printmaker and painter who lived from 1903 to 1975.