Government & politics — United States
Government structure, legal system, citizenship, and international relations.
Profile updated 2026-06-02
⚡ Government & politics at a glance
Government structure, legal system, citizenship, and international relations. Key figure for United States: United States of America
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Identity & names
- Full Country Name
United States of America
- Country Name
United States
- Abbreviation
US or USA
- Etymology- history of name
the name America is derived from that of Amerigo VESPUCCI (1454-1512) - Italian explorer, navigator, and cartographer - using the Latin form of his name, Americus, feminized to America
- Independence
4 July 1776 (declared independence from Great Britain); 3 September 1783 (recognized by Great Britain)
- National Holiday
Independence Day, 4 July (1776)
Political system
- Government Type
constitutional federal republic
- Constitution
- Legal System:
- Executive Branch:
- Legislative Branch:
- Judicial Branch:
- Regions or States:
- Political Parties and Leaders:
- Suffrage:
18 years of age; universal
- Citizenship Criteria:
Capital & time
- Capital Name
Washington, DC
- Capital - geographic coordinate
38 53 N, 77 02 W
- Capital Time Difference
UTC-5 (during Standard Time) time zone note: the 50 United States cover six time zones
- Daylight Savings Time
+1hr, begins second Sunday in March; ends first Sunday in November
International role
- International Organization Participation:
- International Law Organization Participation:
withdrew acceptance of compulsory ICJ jurisdiction in 2005; withdrew acceptance of ICCt jurisdiction in 2002
