---
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  "coordinates": {
    "latitude": 36.2048,
    "longitude": 138.2529
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  "createdAt": "2026-10-28T00:00:00+08:00",
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      "locator": "日本語ウィキペディア・公式サイト, 2026-10-28確認",
      "title": "日本",
      "url": "https://ja.wikipedia.org/wiki/%E6%97%A5%E6%9C%AC"
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  "status": "published",
  "summary": "An island nation in East Asia made up of 47 prefectures, with a developed rail network centered on the Shinkansen.",
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---

# Japan

An island nation in East Asia made up of 47 prefectures, with a developed rail network centered on the Shinkansen.

## Overview

Japan is an island nation in East Asia comprising the four main islands of Hokkaido, Honshu, Shikoku and Kyushu plus some 14,000 islands. Its total area is about 378,000 km2 and its population about 120 million (2024). The capital is Tokyo; it is a constitutional monarchy with a parliamentary system.

## Basic information

- Capital: Tokyo
- Total area: about 378,000 km2
- Population: about 120 million (2024, 47 prefectures)
- Climate: temperate monsoon (subarctic in Hokkaido, subtropical in Okinawa)
- Language: Japanese
- Currency: yen

## Administrative divisions

Japan consists of 47 prefectures (1 to, 1 do, 2 fu, 43 ken), grouped into eight regions: Hokkaido, Tohoku, Kanto, Chubu, Kansai, Chugoku, Shikoku and Kyushu.

## Rail network

Japan opened the world's first high-speed railway, the [Tokaido Shinkansen](/en/concepts/jp-shinkansen-tokaido.html), in 1964; the conventional and Shinkansen networks now total about 27,000 km. The Shinkansen network comprises the [Sanyo](/en/concepts/jp-shinkansen-sanyo.html), [Tohoku](/en/concepts/jp-shinkansen-tohoku.html), [Joetsu](/en/concepts/jp-shinkansen-joetsu.html), [Hokuriku](/en/concepts/jp-shinkansen-hokuriku.html), [Kyushu](/en/concepts/jp-shinkansen-kyushu.html), [Hokkaido](/en/concepts/jp-shinkansen-hokkaido.html) and [Nishi-Kyushu Shinkansen](/en/concepts/jp-shinkansen-nishikyushu.html) plus the Yamagata and Akita Mini-Shinkansen, operated by [JR Hokkaido](/en/organizations/jp-jr-hokkaido.html), [JR East](/en/organizations/jp-jr-east.html), [JR Central](/en/organizations/jp-jr-central.html), [JR West](/en/organizations/jp-jr-west.html), [JR Kyushu](/en/organizations/jp-jr-kyushu.html) and [JR Shikoku](/en/organizations/jp-jr-shikoku.html). Urban areas are served by the [Yamanote Line](/en/concepts/jp-rail-yamanote.html), [Osaka Loop Line](/en/concepts/jp-rail-osaka-loop.html), [Tokaido Main Line](/en/concepts/jp-rail-tokaido-main.html), subways and buses.

更新时间：2026-10-28

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## 正文反向链接

- [Administrative divisions and railways of Japan](/en/concepts/japan-admin-rail-overview.html)
- [Aichi](/en/places/jp-pref-aichi.html)
- [Akita](/en/places/jp-pref-akita.html)
- [Aomori](/en/places/jp-pref-aomori.html)
- [Chiba](/en/places/jp-pref-chiba.html)
- [Ehime](/en/places/jp-pref-ehime.html)
- [Fukui](/en/places/jp-pref-fukui.html)
- [Fukuoka](/en/places/jp-pref-fukuoka.html)
- [Fukushima](/en/places/jp-pref-fukushima.html)
- [Gifu](/en/places/jp-pref-gifu.html)

## 来源

- 日本：https://ja.wikipedia.org/wiki/%E6%97%A5%E6%9C%AC 日本語ウィキペディア・公式サイト, 2026-10-28確認