Kosai is a city located in far western Shizuoka Prefecture, Japan., the city had an estimated population of 59,770 in 24,232 households, and a population density of 690 persons per km². The total area of the city is 85.65sqkm.
Kosai is a city located in far western Shizuoka Prefecture, Japan., the city had an estimated population of 59,770 in 24,232 households, and a population density of 690 persons per km². The total area of the city is 85.65sqkm.