Karatsu Population 2026
Karatsu has a population of 117,663, making it the #230 biggest city in 🇯🇵 Japan, located in Saga. Roughly 0.1% of Japan's population lives here. It is about 83× smaller than Tokyo, the country's biggest city.
Population (city proper)
117,663
Rank in Japan
#230
Coordinates
33.44°N, 129.97°E
~7 m elevation · Asia/Tokyo
Distance to capital (Tokyo)
924 km
574 miles, straight line
Other big cities in Saga
| City | Population | Rank in Japan |
|---|---|---|
| Saga | 233,301 | #107 |
| Tosu | 74,196 | #377 |
| Imarichō-kō | 57,940 | #486 |
| Takeo | 47,914 | #582 |
| Ogi | 43,952 | #620 |
| Kanzakimachi-kanzaki | 31,022 | #815 |
| Kashima | 30,159 | #836 |
| Ureshinomachi-shimojuku | 25,848 | #922 |
Cities near Karatsu
- Imarichō-kō57,940 people · ~21 km away
- Taku18,295 people · ~23 km away
- Itoshima98,877 people · ~23 km away
- Maebaru-chūō70,339 people · ~25 km away
- Ogi43,952 people · ~28 km away
- Matsuura23,566 people · ~28 km away
FAQ
What is the population of Karatsu?
Karatsu has a population of 117,663 (city proper, latest official figure via GeoNames), making it the #230 biggest city in Japan.
What region is Karatsu in?
Karatsu is located in Saga, Japan.
Is Karatsu the capital of Japan?
No, the capital of Japan is Tokyo, about 924 km away.
Sources & notes
Population refers to the city proper (municipal boundaries), not the metropolitan area. Source: GeoNames (CC BY 4.0), retrieved 2026-07-07. Country data: UN World Population Prospects 2024.