What is the population of the United States?

As of 2024 estimates, the US population is approximately 335 million people, making it the third most populous country in the world after China and India.

What is the capital of the United States?

Washington, D.C. (District of Columbia) is the capital city. It is not part of any state and serves exclusively as the seat of the federal government.

How many states are in the USA?

The United States consists of 50 states plus the District of Columbia, which serves as the federal capital. There are also several territories including Puerto Rico, Guam, and the US Virgin Islands.

What is the GDP of the United States?

The US nominal GDP is approximately $27–28 trillion USD (2024), making it the largest economy in the world by nominal GDP. By purchasing power parity (PPP), it ranks second after China.

What languages are spoken in the USA?

English is the de facto national language and is spoken by the vast majority of residents. Spanish is the second most widely spoken language. The US has no constitutionally designated official language at the federal level.

How many time zones does the USA have?

The contiguous 48 states span four time zones: Eastern, Central, Mountain, and Pacific. Including Alaska and Hawaii, the US has six main time zones, and nine if overseas territories are included.

USA Country Facts

Name: USA Country Facts
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Author: Nham Vu

Explore key facts about the United States — population, area, economy, government, and geography — all in one quick-reference page.

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Identity & Geography

Full Name

United States of America

Also: USA, US, America

Capital City

Washington, D.C.

District of Columbia

Largest City

New York City

~8.3 million residents

Total Area

3,796,742 sq mi

3rd largest country by area

Number of States

50 states

+ D.C. & territories

Continent

North America

Borders Canada & Mexico

Coastline

12,380 mi

Atlantic, Pacific & Gulf coasts

Highest Point

Denali, 20,310 ft

Located in Alaska

Longest River

Missouri River, 2,341 mi

By length (debated)

Demographics

Population (2024 est.)

~335 million

3rd most populous country

Population Density

~87 per sq mi

Varies greatly by region

Official Language

English (de facto)

No federally designated official language

Median Age

38.9 years

2023 estimate

Life Expectancy

76.4 years

At birth (2022 CDC data)

Literacy Rate

~99%

Ages 15 and over

Government

Government Type

Federal Republic

Presidential constitutional democracy

Independence Day

July 4, 1776

Declaration from Great Britain

Constitution Ratified

June 21, 1788

Oldest written national constitution in use

Legislature

U.S. Congress

Senate (100) + House of Representatives (435)

Head of State

President of the US

Also head of government

Presidential Term

4 years

Maximum 2 terms (22nd Amendment)

Economy

Currency

US Dollar (USD)

Symbol: $ — World reserve currency

Nominal GDP (2024)

~$27.4 trillion USD

Largest economy in the world

GDP per Capita (2024)

~$80,400 USD

Among highest globally

Main Industries

Tech, Finance, Healthcare

Also: Defense, Agriculture, Manufacturing

Stock Exchanges

NYSE & NASDAQ

Largest equity markets globally

Internet TLD

.us

Also uses .gov, .mil, .edu, .org

Practical Info

Time Zones

6 main time zones

EST, CST, MST, PST, AKST, HST

International Dialing Code

Shared with Canada (NANP)

Drives On

Right side

Standard North American traffic pattern

National Anthem

The Star-Spangled Banner

Adopted 1931; lyrics by Francis Scott Key

National Bird

Bald Eagle

On the Great Seal since 1782

National Motto

In God We Trust

Adopted 1956; on all US currency

Summary

Explore key facts about the United States — population, area, economy, government, and geography — all in one quick-reference page.

How it works

Browse the fact cards organized by category: geography, demographics, government, and economy.
Use the search box to filter facts by keyword.
Click any fact card to copy its value to your clipboard.
Switch between metric and imperial units using the toggle.
All data is static and sourced from publicly available reference figures.

Use cases

Quick homework or exam reference for US geography and civics.
Trivia and quiz preparation about the United States.
Journalism and writing research for background statistics.
Teaching materials for US history and social studies classes.
Comparing US stats against other countries for research papers.
Immigration and citizenship study aid.
General knowledge enrichment about the world's largest economy.
Travel planning reference for time zones and dialing codes.

Frequently Asked Questions

Last updated: 2026-06-10 · Reviewed by Nham Vu