Climate
About Niimi
Niimi is a city in Okayama, Japan, with a population of about 28,079 inhabitants. About 41.3% of residents are aged 65 or over and the median age is 59.5. The average taxable income is about 277.9万 yen per taxpayer (2023). The population density is about 35/km² (ranked #523 of 531 covered cities), the home-ownership rate is 58.6% and the city counts 4 hospitals. Since 1980, the population has declined by 37.4% (-8.4% between 2015 and 2020). On this page you can find driving distances, travel time and routes from Niimi to major Japanese cities, nearby towns and the local climate.
Niimi — key statistics
Source: e-Stat — Statistics Bureau of Japan (census, housing & land survey, medical facilities & school surveys, municipal finance)
Niimi — population dynamics & households
In 2024, Niimi recorded 82 births and 545 deaths (natural change -463), with 538 people moving in and 815 moving out (net migration -277).
Source: e-Stat — System of Social and Demographic Statistics (vital statistics, migration report, census)
Niimi — official land prices 2026
The 2026 official land price survey lists 4 standard points in Niimi: residential land averages 30,467 yen/m² (median 29,900, highest 37,500), commercial land averages 43,300 yen/m², with an average change of -0.53 % over one year.
Source: MLIT — National Land Numerical Information, Official Land Price (L01) 2026
Distances from Niimi
Straight-line distance — click for the full driving route, time and fuel cost.
Train stations near Niimi
Closest railway stations.
Frequently asked questions
Niimi population?
About 28,079 inhabitants (2020 census).
Population density of Niimi?
About 35 inhabitants/km² (area 793.3 km²).
Average rent in Niimi?
About 2,195 yen per tatami per month (2018 Housing and Land Survey).
Distance from Niimi to Tokyo?
About 571 km in a straight line.