Kujūkuri is a town located in Chiba Prefecture, Japan. As of 1 December 2020, the town had an estimated population of 15,343 in 7,092 households and a population density of 650 persons per km². The total area of the city is 23.72 square kilometres. Kujūkuri owes its name to its beach, Kujūkuri Beach, which is Japan's second longest.