The modern city of Yoshikawa was established on April 1, 1996. The area was previously Yoshikawa-machi, but population increase necessitated the change to 'shi' (city)
It is approximately 20 km (12 mi) north-west of Tokyo and bordered on both sides by two small rivers; Edogawa to the west and Nakagawa to the east. Due to this location, Yoshikawa is known for its high-quality river eel production or 'unagi'. Its main industries are farming and retail.
Yoshikawa is infamous among foreigners living in the area for having city hall officials and a police force that discriminates heavily against any non Japanese person.