United States: Key Information & Facts

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Updated: 2018-05-02.

General points to know about the United States – demographics, important ages, phone numbers, key statistics, and more – whether you are traveling there or not.

Capital: Washington, D.C.

Largest City: New York City

Population: 326 million (2018 estimate)

Language(s): English & Spanish mainly

President: Donald Trump

Prime Minister: Mike Pence

CurrencyUS Dollar $ (USD)

Area: 3,796,742 km2 (9,833,520 mi2)

Dialing Code: +1

Time Zone: UTC-4 through UTC-12, UTC+10 & UTC+11

Demonym: American (what’s this?)

Endonym: America or United States
(their name for their country)
Emergency Dialing Tel. Number: 911 (general number for police, fire, ambulance, etc.)

Drinking Age: 21

Smoking Age: 18

Age of Consent: 16+

Drives on the: Right

Electricity & Adapter: 120 V, 60 Hz, Plug Types A / B (define)

Country Code (ISO): US (also the country’s primary TLD {top-level domain})

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