2,103 cities · 47 states/provinces · Capital: Tokyo · Asia
| Capital | Tokyo |
| Continent | Asia |
| Region | Asia |
| Subregion | Eastern Asia |
| Languages | Japanese |
| Currency | Yen (JPY) |
| Population | 126,529,100 |
| Density | 334.9/km² |
| Median Age | 49.1 |
| Urban Population | 92.1% |
| Birth Rate | 6.0 per 1K |
| Death Rate | 13.0 per 1K |
| Fertility Rate | 1.20 |
| GDP | $4,213.2 billion |
| GDP per Capita | $33,836 |
| HDI | 0.925 |
| Gini Index | 32.9 |
| Internet Users | 87.0% |
| Area | 377,835 km² |
| Driving Side | Left |
| Landlocked | No |
| Calling Code | ++81 |
| TLD | .jp |
| ISO Code | JP / JPN |
| UN Member | Yes |
| Independent | Yes |
| Life Expectancy | 84.0 years |
| # | City | State/Province | Population | Avg Temp | Elevation |
|---|---|---|---|---|---|
| 1 | Tokyo | Tokyo | 9,733,276 | 62°F | 144 ft |
| 2 | Yokohama | Kanagawa | 3,777,491 | 62°F | 69 ft |
| 3 | Osaka | Osaka | 2,753,862 | 61°F | 13 ft |
| 4 | Nagoya | Aichi | 2,332,176 | 60°F | 75 ft |
| 5 | Sapporo | Hokkaido | 1,973,832 | 47°F | 85 ft |
| 6 | Fukuoka | Fukuoka | 1,612,392 | 61°F | 10 ft |
| 7 | Kawasaki | Kanagawa | 1,538,262 | 62°F | 3 ft |
| 8 | Kobe | Hyōgo | 1,525,152 | 58°F | 115 ft |
| 9 | Kyoto | Kyoto | 1,463,723 | 56°F | 164 ft |
| 10 | Saitama | Saitama | 1,324,854 | 62°F | 52 ft |
| 11 | Hiroshima | Hiroshima | 1,200,754 | 59°F | 52 ft |
| 12 | Sendai | Miyagi | 1,096,704 | 54°F | 174 ft |
| 13 | Chiba | Chiba | 979,768 | 63°F | 16 ft |
| 14 | Kitakyushu | Fukuoka | 940,978 | 61°F | 187 ft |
| 15 | Setagaya | Tokyo | 940,071 | 62°F | 144 ft |
| 16 | Sakai | Osaka | 826,161 | 61°F | 7 ft |
| 17 | Niigata | Niigata | 797,591 | 56°F | 3 ft |
| 18 | Hamamatsu | Shizuoka | 791,707 | 61°F | 10 ft |
| 19 | Ōta | Tokyo | 748,081 | 62°F | 39 ft |
| 20 | Kumamoto | Kumamoto | 738,907 | 62°F | 30 ft |