What is "koishikawa"

is a locality within Bunkyo, Tokyo. It consists of five sub-areas, . It is located nearby with the same name are two well regarded gardens: the Koishikawa Botanical Garden (related to Tokyo University) in Hakusan, and the Koishikawa Korakuen Garden in Korakuen.

Train stations for accessing this locality include , , and Myōgadani Station.

The Koishikawa arsenal was an important military installation during the Meiji era.