UNITED STATES OF AMERICA
Conventional long form: United States of America
Conventional short form: United States
Abbreviation: US or USA
Population: 313,232,044 (2011 estimate)
Median age: 36.9 years
Age structure: (2011 estimates)0–14 years: 20.1%15–64 years: 66.8%65 years and over: 13.1%
GDP per capita (PPP): $47,400 (2010 estimate)
Suffrage: 18 years old; universal
Legal drinking age: Varies by state, but the federal government mandates that 21 years of age is the minimum age to purchase or publicly possess alcohol
Cultural Note
The United States of America breaks records—from scientific and technological discoveries to bailouts of entire industries. It is a country of superlatives, and virtually every multinational corporation in the world ...
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