About Karatsu
Karatsu is a city in Saga, Japan, with a population of about 117,373 inhabitants. About 32.7% of residents are aged 65 or over and the median age is 51.4. The average taxable income is about 290.8万 yen per taxpayer (2023). The population density is about 241/km² (ranked #357 of 531 covered cities), the home-ownership rate is 59.0% and the city counts 16 hospitals. Since 1980, the population has declined by 17.5% (-4.4% between 2015 and 2020). On this page you can find driving distances, travel time and routes from Karatsu to major Japanese cities, nearby towns and the local climate.
Karatsu — key statistics
Source: e-Stat — Statistics Bureau of Japan (census, housing & land survey, medical facilities & school surveys, municipal finance)
Karatsu — population dynamics & households
In 2024, Karatsu recorded 695 births and 1,884 deaths (natural change -1,189), with 2,491 people moving in and 2,887 moving out (net migration -396).
Source: e-Stat — System of Social and Demographic Statistics (vital statistics, migration report, census)
Karatsu — official land prices 2026
The 2026 official land price survey lists 17 standard points in Karatsu: residential land averages 43,400 yen/m² (median 46,400, highest 62,500), commercial land averages 45,300 yen/m², with an average change of +1.35 % over one year.
Source: MLIT — National Land Numerical Information, Official Land Price (L01) 2026
Distances from Karatsu
Straight-line distance — click for the full driving route, time and fuel cost.
Train stations near Karatsu
Closest railway stations.
Frequently asked questions
Karatsu population?
About 117,373 inhabitants (2020 census).
Population density of Karatsu?
About 241 inhabitants/km² (area 487.6 km²).
Average rent in Karatsu?
About 2,102 yen per tatami per month (2018 Housing and Land Survey).
Distance from Karatsu to Tokyo?
About 925 km in a straight line.