---
title: "Hong Kong vs Japan — area, population, currency"
description: "Hong Kong is 1,108 km² with 7,498,900 people; Japan is 377,915 km² with 123,366,734. Area, density, currency, languages and time zones side by side."
url: https://atoneplace.net/country-vs/hong-kong-vs-japan/
site: "At One Place"
---

# Hong Kong vs Japan

**Hong Kong vs Japan: Japan is larger; Japan has more people**

1,108 km² vs 377,915 km² · 7,498,900 vs 123,366,734

Japan is 341 times larger than Hong Kong — 377,915 against 1,108 km². Japan is 16 times more populous than Hong Kong — 123,366,734 against 7,498,900 people.

## Side by side

|  | Hong Kong | Japan |
| --- | --- | --- |
| Capital | Hong Kong | Tokyo |
| Area | 1,108 km² | 377,915 km² |
| Population | 7,498,900 (2025) | 123,366,734 (2025) |
| Density | 6768.0 /km² | 326.4 /km² |
| Currency | Hong Kong dollar (HKD) | Japanese yen (JPY) |
| Official languages | English, Chinese | Japanese |
| Time zones | UTC+08:00 | UTC+09:00 |
| Calling code | +852 | +81 |
| Drives on the | left | left |
| Continent | Asia | Asia |
| ISO codes | HK / HKG | JP / JPN |

## Population density

Hong Kong is 21 times more densely populated than Japan — 6,768 against 326 people per km². Density is where area and population interact, and it often reverses the impression the headline figures give — a large country with a small population can feel emptier than a small crowded one by an enormous margin.

## Practical differences

- Different currencies: the Hong Kong dollar and the Japanese yen.

## Hong Kong

One of the most densely populated places on Earth, yet roughly three-quarters of its land is undeveloped countryside and about forty percent is protected country park. It has 263 islands and around 730 km of coastline. There are more skyscrapers over 150 m here than in any other city.

## Japan

A 2023 government survey using digital mapping counted 14,125 islands, more than double the long-quoted figure of 6,852. About three-quarters of the land is mountain, so nearly everyone lives on a narrow band of coastal plain. Japan sits where four tectonic plates meet and records a fifth of the world's magnitude-6-and-above earthquakes.

> Neutral facts only. Nothing here addresses politics, government, economics or which country is preferable in any respect — population is the one figure that dates, and it carries its year.

## Common questions

### Is Hong Kong bigger than Japan?

Japan is larger — 377,915 km² against 1,108 km².

### Which has more people, Hong Kong or Japan?

Japan, with 123,366,734 against 7,498,900.

### What is the time difference between Hong Kong and Japan?

Hong Kong is UTC+08:00 and Japan is UTC+09:00. Daylight saving shifts the gap during the year in places that observe it.

## Related pages

- [Hong Kong](https://atoneplace.net/country/hong-kong/)
- [Japan](https://atoneplace.net/country/japan/)
- [India vs Japan](https://atoneplace.net/country-vs/india-vs-japan/)
- [China vs Japan](https://atoneplace.net/country-vs/china-vs-japan/)
- [China vs Hong Kong](https://atoneplace.net/country-vs/china-vs-hong-kong/)
- [Japan vs United States](https://atoneplace.net/country-vs/japan-vs-united-states/)
- [Japan vs United Kingdom](https://atoneplace.net/country-vs/japan-vs-united-kingdom/)
- [Japan vs New Zealand](https://atoneplace.net/country-vs/japan-vs-new-zealand/)
- [Japan vs Russia](https://atoneplace.net/country-vs/japan-vs-russia/)
- [Japan vs Mexico](https://atoneplace.net/country-vs/japan-vs-mexico/)
- [Japan vs Spain](https://atoneplace.net/country-vs/japan-vs-spain/)
- [Japan vs South Korea](https://atoneplace.net/country-vs/japan-vs-south-korea/)
- [Japan vs Netherlands](https://atoneplace.net/country-vs/japan-vs-netherlands/)
- [Japan vs Nigeria](https://atoneplace.net/country-vs/japan-vs-nigeria/)

## Sources

- The World Factbook — Central Intelligence Agency (https://www.cia.gov/the-world-factbook/) [Public domain (US Government)]
- World Bank Open Data — The World Bank (https://data.worldbank.org/) [CC BY 4.0]