About Koga
Koga is a city in Fukuoka, Japan, with a population of about 58,786 inhabitants. About 27.6% of residents are aged 65 or over and the median age is 47.3. The average taxable income is about 319.2万 yen per taxpayer (2023). The population density is about 1,396/km² (ranked #145 of 531 covered cities), the home-ownership rate is 57.4% and the city counts 5 hospitals. Since 1980, the population has grown by 65.3% (+1.4% between 2015 and 2020). On this page you can find driving distances, travel time and routes from Koga to major Japanese cities, nearby towns and the local climate.
Koga — key statistics
Source: e-Stat — Statistics Bureau of Japan (census, housing & land survey, medical facilities & school surveys, municipal finance)
Koga — population dynamics & households
In 2024, Koga recorded 365 births and 642 deaths (natural change -277), with 2,643 people moving in and 2,536 moving out (net migration +107).
Source: e-Stat — System of Social and Demographic Statistics (vital statistics, migration report, census)
Koga — official land prices 2026
The 2026 official land price survey lists 10 standard points in Koga: residential land averages 88,971 yen/m² (median 92,500, highest 101,000), commercial land averages 126,000 yen/m², with an average change of +4.97 % over one year.
Source: MLIT — National Land Numerical Information, Official Land Price (L01) 2026
Distances from Koga
Straight-line distance — click for the full driving route, time and fuel cost.
Nearby cities
Closest towns and cities around Koga.
Train stations near Koga
Closest railway stations.
Frequently asked questions
Koga population?
About 58,786 inhabitants (2020 census).
Population density of Koga?
About 1,396 inhabitants/km² (area 42.1 km²).
Average rent in Koga?
About 2,494 yen per tatami per month (2018 Housing and Land Survey).
Distance from Koga to Tokyo?
About 871 km in a straight line.