| Government | Federal Constitutional Republic |
| Capital | Washington, D.C. |
| Official languages | English (de facto) |
| Demonym | American |
| Population | 306m (2009 est) |
| Currency | US dollar (USD) |
References: Wikipedia
| Government | Federal Constitutional Republic |
| Capital | Washington, D.C. |
| Official languages | English (de facto) |
| Demonym | American |
| Population | 306m (2009 est) |
| Currency | US dollar (USD) |
References: Wikipedia