Prefecture of Japan
Chiba
千葉県Chiba is a prefecture of Japan. It covers about 5,110 km² (1,970 mi²), the 27th largest of the 47 prefectures in Natural Earth’s file for Japan, and about the same size as Trinidad and Tobago. About 6.3 million people live there (Wikidata, 2021).
50 km
- Trinidad and Tobago
- Chiba
Facts
| Area, measured | 5,110 km²1,970 mi² |
|---|---|
| Official area | 5,160 km²Wikidata · agrees with our measure |
| Share of Japan | 1.4%of the area of the 47 prefectures |
| Rank by area | 27th of 47prefectures of Japan |
| Population | 6.3 millionWikidata, 2021 |
| Density | 1,228 people per km² |
| Capital | Chiba |
| Latitude range | 35°N to 36°N |
| Type | PrefectureJP-12 |
What the numbers say about Chiba
- Chiba covers 1.4% of the area of Japan and ranks 6th of 47 by population, against 27th by area.
- It would take 73.1 prefectures the size of Chiba to cover Japan.
- The largest, Hokkaido (Japan), is 15.4× the size of Chiba; the smallest, Kagawa, is 36% of it.
- Closest in size within Japan: Fukuoka (5,050 km², 1.01×) and Aichi (4,940 km², 1.03×).
- Counted as a country, Chiba would be larger than 65 of the 239 countries and territories listed on sizeversus, and would rank 175th by area, between Trinidad and Tobago (5,120 km²) and Cape Verde (3,930 km²).
- With 6.3 million people it would rank 111th of 238 by population.
- Chiba has 1,228 people per km², about the density of Bangladesh, which has 1,252 per km².
- That makes Chiba the 6th most densely populated of the 47 prefectures, 3.64× the average for Japan (338 per km²).
- On a standard web map (Web Mercator), a place at 36°N is drawn about 1.5× too large in area, so Chiba looks bigger there than it is.
- Laid out flat, Chiba stretches about 131 km north to south and 102 km east to west.
- Wikidata's official figure of 5,160 km² agrees with our measured area of 5,110 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.
- ChinaAreaShanghai76% · 6,750 km²PeopleQinghai1.06× · 5.9 million (2020)
- United StatesAreaDelaware0.99× · 5,170 km²PeopleMaryland1.02× · 6.2 million (2020)
- IndiaAreaSikkim74% · 6,940 km²PeopleHimachal Pradesh0.91× · 6.9 million (2011)
- GermanyAreaSaarland1.93× · 2,650 km²PeopleHesse1.01× · 6.2 million (2022)
- FranceAreaCorsica (France)59% · 8,670 km²PeopleNouvelle-Aquitaine1.03× · 6.1 million (2022)
- ItalyAreaLiguria0.93× · 5,490 km²PeopleLazio1.07× · 5.9 million (2019)
- SpainAreaBalearic Islands1.00× · 5,120 km²PeopleCommunity of Madrid90% · 7.0 million (2024)
- BrazilAreaFederal District88% · 5,790 km²PeopleMaranhão0.93× · 6.8 million (2022)
- CanadaAreaPrince Edward Island89% · 5,730 km²PeopleBritish Columbia1.26× · 5.0 million (2021)
- AustraliaAreanone within 2×PeopleVictoria90% · 7.0 million (2024)
- MexicoAreaMorelos1.01× · 5,080 km²PeoplePuebla1.02× · 6.2 million (2015)
- ThailandAreaSuphan Buri0.94× · 5,420 km²PeopleBangkok1.11× · 5.7 million (2018)
Where Chiba sits in Japan
All 47 drawn on one equal-area map, so sizes are comparable. Select another to open it.
Compare Chiba
- Puebla vs Chiba
- Maryland vs Chiba
- Hesse vs Chiba
- Cantabria vs Chiba
- La Rioja vs Chiba
- Delaware vs Chiba
- Balearic Islands vs Chiba
- Trinidad and Tobago vs Chiba
- Cyprus vs Chiba
- Republic of the Congo vs Chiba
- Denmark vs Chiba
- Finland vs Chiba
- Chiba vs Luxembourg
- Prince Edward Island vs Chiba
- Shanghai vs Chiba
- Federal District vs Chiba
- Sikkim vs Chiba
- Chiba vs Morelos
- Corsica (France) vs Chiba
- Chiba vs Saarland
- Liguria vs Chiba
- Suphan Buri vs Chiba
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