Prefecture of Japan
Kochi
高知県Kochi is a prefecture of Japan. It covers about 7,090 km² (2,740 mi²), the 17th largest of the 47 prefectures in Natural Earth’s file for Japan, and 1.24× the size of Brunei. About 689,000 people live there (Wikidata, 2021).
50 km
- Kochi
- Brunei
Facts
| Area, measured | 7,090 km²2,740 mi² |
|---|---|
| Official area | 7,100 km²Wikidata · agrees with our measure |
| Share of Japan | 1.9%of the area of the 47 prefectures |
| Rank by area | 17th of 47prefectures of Japan |
| Population | 689,000Wikidata, 2021 |
| Density | 97 people per km² |
| Capital | Kōchi-shi |
| Latitude range | 33°N to 34°N |
| Type | PrefectureJP-39 |
What the numbers say about Kochi
- Kochi covers 1.9% of the area of Japan and ranks 45th of 47 by population, against 17th by area.
- It would take 52.7 prefectures the size of Kochi to cover Japan.
- The largest, Hokkaido (Japan), is 11.1× the size of Kochi; the smallest, Kagawa, is 26% of it.
- Closest in size within Japan: Okayama (6,930 km², 1.02×) and Kumamoto (7,250 km², 1.02×).
- Counted as a country, Kochi would be larger than 70 of the 239 countries and territories listed on sizeversus, and would rank 170th by area, between Puerto Rico (9,010 km²) and French Southern and Antarctic Lands (6,990 km²).
- With 689,000 people it would rank 167th of 238 by population.
- Kochi has 97 people per km², about the density of Ivory Coast, which has 97 per km².
- That makes Kochi the 43rd most densely populated of the 47 prefectures, 29% of the average for Japan (338 per km²).
- On a standard web map (Web Mercator), a place at 33°N is drawn about 1.4× too large in area, so Kochi looks bigger there than it is.
- Laid out flat, Kochi stretches about 128 km north to south and 163 km east to west.
- Wikidata's official figure of 7,100 km² agrees with our measured area of 7,090 km², to within 2%.
About the same size as
Beside the regions of other countries
The closest region by area and by people in each of the other countries that have regional pages here, within a factor of 2. All 395 regions side by side.
- ChinaAreaShanghai1.05× · 6,750 km²Peoplenone within 2×
- United StatesAreaDelaware1.37× · 5,170 km²PeopleWashington, D.C.1.00× · 690,000 (2020)
- IndiaAreaAndaman and Nicobar Islands1.00× · 7,110 km²PeopleSikkim1.05× · 658,000 (2011)
- GermanyAreanone within 2×PeopleBremen0.99× · 693,000 (2022)
- FranceAreaCorsica (France)82% · 8,670 km²PeopleRéunion (France)78% · 881,000 (2022)
- ItalyAreaFriuli-Venezia Giulia0.97× · 7,340 km²PeopleBasilicata1.22× · 563,000 (2019)
- SpainAreaBasque Country1.00× · 7,060 km²PeopleNavarre1.02× · 678,000 (2024)
- BrazilAreaFederal District1.22× · 5,790 km²PeopleAmapá0.94× · 734,000 (2022)
- CanadaAreaPrince Edward Island1.24× · 5,730 km²PeopleNew Brunswick89% · 776,000 (2021)
- AustraliaAreanone within 2×PeopleTasmania (Australia)1.28× · 540,000 (2020)
- MexicoAreaColima1.21× · 5,880 km²PeopleColima0.94× · 731,000 (2020)
- ThailandAreaSa Kaeo1.00× · 7,080 km²PeopleTak1.03× · 670,000 (2020)
Where Kochi sits in Japan
All 47 drawn on one equal-area map, so sizes are comparable. Select another to open it.
Compare Kochi
- Navarre vs Kochi
- Andaman and Nicobar Islands vs Kochi
- Kochi vs Brunei
- Kochi vs Cyprus
- Kochi vs Luxembourg
- Montenegro vs Kochi
- Kochi vs Prince Edward Island
- Kochi vs Shanghai
- Kochi vs Federal District
- Kochi vs Delaware
- Kochi vs Colima
- Kochi vs Basque Country
- Corsica (France) vs Kochi
- Friuli-Venezia Giulia vs Kochi
- Kochi vs Sa Kaeo
- Kochi vs Washington, D.C.
- Kochi vs Bremen
- Kochi vs Sukhothai
Share this outline
Sources and method
- Outline
- Natural Earth, 1:10m Admin 1 - States, Provinces, public domain
- Boundary
- De facto, as drawn by Natural Earth.
- Area
- Measured on the WGS84 ellipsoid from the full-detail outline, shown rounded. The region’s whole area is counted, every island included.
- Official figures
- Area, population and capital from Wikidata (CC0), fetched 2026-11-12
- Population
- Wikidata, 2021. Japan’s units share the 2021 figures where Wikidata has them; the year is shown wherever the figure is.
- Matching
- Countries come from Natural Earth’s country file. Places whose status is contested and dependencies are never used as automatic matches. A region under 2,500 km² is matched against the small countries and island nations.
- Data built
- 2026-11-12