---
title: "Japan vs Puerto Rico — area, population, currency"
description: "Japan is 377,915 km² with 123,366,734 people; Puerto Rico is 9,104 km² with 3,184,835. Area, density, currency, languages and time zones side by side."
url: https://atoneplace.net/country-vs/japan-vs-puerto-rico/
site: "At One Place"
---

# Japan vs Puerto Rico

**Japan vs Puerto Rico: Japan is larger; Japan has more people**

377,915 km² vs 9,104 km² · 123,366,734 vs 3,184,835

Japan is 42 times larger than Puerto Rico — 377,915 against 9,104 km². Japan is 39 times more populous than Puerto Rico — 123,366,734 against 3,184,835 people.

## Side by side

|  | Japan | Puerto Rico |
| --- | --- | --- |
| Capital | Tokyo | San Juan |
| Area | 377,915 km² | 9,104 km² |
| Population | 123,366,734 (2025) | 3,184,835 (2025) |
| Density | 326.4 /km² | 349.8 /km² |
| Currency | Japanese yen (JPY) | United States dollar (USD) |
| Official languages | Japanese | English, Spanish |
| Time zones | UTC+09:00 | UTC-04:00 |
| Calling code | +81 | +1 |
| Drives on the | left | right |
| Continent | Asia | North America |
| ISO codes | JP / JPN | PR / PRI |

## Population density

Puerto Rico is slightly more densely populated, by 7.2% — 350 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

- They drive on opposite sides — Japan on the left, Puerto Rico on the right.
- Different currencies: the Japanese yen and the United States dollar.
- Different continents — Asia and North America.

## 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.

## Puerto Rico

The Puerto Rico Trench off the north coast reaches about 8,400 m, the deepest point in the Atlantic Ocean. El Yunque is the only tropical rainforest in the United States National Forest system. Mosquito Bay on Vieques is the brightest bioluminescent bay in the world, lit by dinoflagellates in the water.

> 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 Japan bigger than Puerto Rico?

Japan is larger — 377,915 km² against 9,104 km².

### Which has more people, Japan or Puerto Rico?

Japan, with 123,366,734 against 3,184,835.

### What is the time difference between Japan and Puerto Rico?

Japan is UTC+09:00 and Puerto Rico is UTC-04:00. Daylight saving shifts the gap during the year in places that observe it.

## Related pages

- [Japan](https://atoneplace.net/country/japan/)
- [Puerto Rico](https://atoneplace.net/country/puerto-rico/)
- [India vs Japan](https://atoneplace.net/country-vs/india-vs-japan/)
- [India vs Puerto Rico](https://atoneplace.net/country-vs/india-vs-puerto-rico/)
- [China vs Japan](https://atoneplace.net/country-vs/china-vs-japan/)
- [China vs Puerto Rico](https://atoneplace.net/country-vs/china-vs-puerto-rico/)
- [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/)

## 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]