Climate
About Iiyama
Iiyama is a city in Nagano, Japan, with a population of about 19,539 inhabitants. About 38.1% of residents are aged 65 or over and the median age is 56.9. The average taxable income is about 274.1万 yen per taxpayer (2023). The population density is about 97/km² (ranked #455 of 531 covered cities), the home-ownership rate is 71.4% and the city counts 1 hospitals. Since 1980, the population has declined by 35% (-8.9% between 2015 and 2020). On this page you can find driving distances, travel time and routes from Iiyama to major Japanese cities, nearby towns and the local climate.
Iiyama — key statistics
Source: e-Stat — Statistics Bureau of Japan (census, housing & land survey, medical facilities & school surveys, municipal finance)
Iiyama — population dynamics & households
In 2024, Iiyama recorded 59 births and 335 deaths (natural change -276), with 448 people moving in and 592 moving out (net migration -144).
Source: e-Stat — System of Social and Demographic Statistics (vital statistics, migration report, census)
Iiyama — official land prices 2026
The 2026 official land price survey lists 4 standard points in Iiyama: residential land averages 18,567 yen/m² (median 19,600, highest 25,300), commercial land averages 24,600 yen/m², with an average change of -0.83 % over one year.
Source: MLIT — National Land Numerical Information, Official Land Price (L01) 2026
Distances from Iiyama
Straight-line distance — click for the full driving route, time and fuel cost.
Nearby cities
Closest towns and cities around Iiyama.
Train stations near Iiyama
Closest railway stations.
Frequently asked questions
Iiyama population?
About 19,539 inhabitants (2020 census).
Population density of Iiyama?
About 97 inhabitants/km² (area 202.4 km²).
Average rent in Iiyama?
About 1,828 yen per tatami per month (2018 Housing and Land Survey).
Distance from Iiyama to Tokyo?
About 176 km in a straight line.