City · Japan
Karuizawa
Karuizawa is a resort town in Nagano Prefecture, Japan. As of 1 October 2025, it had an estimated population of 21,834 in 11,285 households, and a population density of 139 persons per km2. The total area of the town is 156.03 km2 (60.24 sq mi).
Good to know
- Population: 20,023.
- Founded: 1889.
- Area: 156 sq km.
- Timezone: Asia/Tokyo.