About Yanai
Yanai is a city in Yamaguchi, Japan, with a population of about 30,799 inhabitants. About 39.0% of residents are aged 65 or over and the median age is 57.0. The average taxable income is about 303.5万 yen per taxpayer (2023). The population density is about 220/km² (ranked #366 of 531 covered cities), the home-ownership rate is 53.9% and the city counts 4 hospitals. Since 1980, the population has declined by 28.2% (-6.5% between 2015 and 2020). On this page you can find driving distances, travel time and routes from Yanai to major Japanese cities, nearby towns and the local climate.
Yanai — key statistics
Source: e-Stat — Statistics Bureau of Japan (census, housing & land survey, medical facilities & school surveys, municipal finance)
Yanai — population dynamics & households
In 2024, Yanai recorded 139 births and 572 deaths (natural change -433), with 930 people moving in and 929 moving out (net migration +1).
Source: e-Stat — System of Social and Demographic Statistics (vital statistics, migration report, census)
Yanai — official land prices 2026
The 2026 official land price survey lists 6 standard points in Yanai: residential land averages 29,133 yen/m² (median 29,200, highest 31,900), commercial land averages 54,600 yen/m², with an average change of +0.47 % over one year.
Source: MLIT — National Land Numerical Information, Official Land Price (L01) 2026
Distances from Yanai
Straight-line distance — click for the full driving route, time and fuel cost.
Nearby cities
Closest towns and cities around Yanai.
Train stations near Yanai
Closest railway stations.
Frequently asked questions
Yanai population?
About 30,799 inhabitants (2020 census).
Population density of Yanai?
About 220 inhabitants/km² (area 140.1 km²).
Average rent in Yanai?
About 1,824 yen per tatami per month (2018 Housing and Land Survey).
Distance from Yanai to Tokyo?
About 718 km in a straight line.