$
USD — United States dollar
20 countries and territories use this currency (primary in REST Countries data).
Quick answer
USD (United States dollar) is used by 20 countries with a combined population of about 392M.
Countries / territories
20
Population
392M
Total area
10,121,510 km²
Exchange rate
1 EUR = 1.1745 USD
Countries using USD
| Country | Capital | Population |
|---|---|---|
| United States | Washington, D.C. | 340M |
| Ecuador | Quito | 18M |
| Cambodia | Phnom Penh | 18M |
| El Salvador | San Salvador | 6M |
| Panama | Panama City | 4.1M |
| Puerto Rico | San Juan | 3.2M |
| Timor-Leste | Dili | 1.4M |
| Bahamas | Nassau | 398.2K |
| Guam | Hagåtña | 153.8K |
| Micronesia | Palikir | 105.6K |
| United States Virgin Islands | Charlotte Amalie | 87.1K |
| Turks and Caicos Islands | Cockburn Town | 50.8K |
| American Samoa | Pago Pago | 49.7K |
| Northern Mariana Islands | Saipan | 47.3K |
| Marshall Islands | Majuro | 42.4K |
| British Virgin Islands | Road Town | 39.5K |
| Caribbean Netherlands | Kralendijk | 32K |
| Palau | Ngerulmud | 16.7K |
| British Indian Ocean Territory | Diego Garcia | — |
| United States Minor Outlying Islands | Washington DC | — |
Frequently Asked Questions
20 countries and territories currently use USD (United States dollar) as a primary currency in our REST Countries-based database. See the full table above for the complete list.
The symbol for USD (United States dollar) is $. It is commonly used in price formatting and financial displays.
By population, United States is the largest user of the USD, accounting for about 87% of all USD users.
The ISO 4217 alphabetic code for the United States dollar is USD; the numeric code is —.
FX rates from ExchangeRate-API. Snapshot base: EUR. Updated May 8, 2026.