Kantō関東

Kantō. A region (地方, chihō) of Japan.

The plain around Tokyo and the six prefectures around it. About a third of Japan's population is here.

A region has no assembly, no governor, and no budget. It is a grouping used in weather forecasts, school textbooks, and business planning, and its borders are a convention, not a law. Each prefecture in it is a government.

Open Kantō on the map

Facts

Japanese name
関東
Prefectures
7
Population
43,653,441 (2020 census)
Area
32,433 km²
Density
1,346 people per km²
Municipalities
316
Most populous prefecture
Tokyo 14,047,594
Designated cities
Saitama City, Chiba City, Yokohama City, Kawasaki City, and Sagamihara City

The 7 prefectures in Kantō都道府県

PrefectureCapitalPopulationkm²Municipalities
Ibaraki茨城県Mito水戸市2,867,0096,09744
Tochigi栃木県Utsunomiya宇都宮市1,933,1466,40825
Gunma群馬県Maebashi前橋市1,939,1106,36235
Saitama埼玉県Saitamaさいたま市7,344,7653,79863
Chiba千葉県Chiba千葉市6,284,4805,15854
Tokyo東京都Shinjuku (seat of government)新宿区14,047,5942,19462
Kanagawa神奈川県Yokohama横浜市9,237,3372,41633

Designated cities in Kantō政令指定都市

A designated city is divided into wards and takes over some services from its prefecture. Each has a page with its wards.

Population: 2020 Population Census (令和2年国勢調査), the prefectures added up. Area: Geospatial Information Authority of Japan (全国都道府県市区町村別面積調, 2020). Municipality counts are from the boundary data on the map.