Iida Population 2026
Iida has a population of 101,536, making it the #268 biggest city in 🇯🇵 Japan, located in Nagano. Roughly 0.1% of Japan's population lives here. It is about 96× smaller than Tokyo, the country's biggest city.
Population (city proper)
101,536
Rank in Japan
#268
Coordinates
35.52°N, 137.82°E
~517 m elevation · Asia/Tokyo
Distance to capital (Tokyo)
170 km
106 miles, straight line
Other big cities in Nagano
Cities near Iida
- Komagane32,202 people · ~24 km away
- Nakatsugawa78,930 people · ~29 km away
- Ina68,177 people · ~36 km away
- Ena48,777 people · ~40 km away
- Minamiminowa15,797 people · ~42 km away
- Kinoshita24,989 people · ~45 km away
FAQ
What is the population of Iida?
Iida has a population of 101,536 (city proper, latest official figure via GeoNames), making it the #268 biggest city in Japan.
What region is Iida in?
Iida is located in Nagano, Japan.
Is Iida the capital of Japan?
No, the capital of Japan is Tokyo, about 170 km away.
Sources & notes
Population refers to the city proper (municipal boundaries), not the metropolitan area. Source: GeoNames (CC BY 4.0), retrieved 2026-07-07. Country data: UN World Population Prospects 2024.