Capital Cities of the World Explained

Tap a topic to see more detail.

What Defines a Capital City

A capital city is generally the seat of a country's government, hosting its main legislative, executive, and often judicial institutions, though it is not always the country's largest or most well-known city.

When the Capital Isn't the Largest City

In many countries, the capital is not the most populous city — for example, Washington, D.C. is not the largest U.S. city, and Canberra, not Sydney, is Australia's capital, often chosen deliberately as a neutral or planned location.

Countries with Multiple Capitals

A handful of countries officially designate more than one capital city, often splitting different government functions — such as legislative, judicial, and administrative — between separate cities.

Purpose-Built Capital Cities

Some capitals, like Brasília and Canberra, were specifically planned and constructed to serve as a capital, rather than growing organically as a pre-existing major city.

Countries That Have Changed Capitals

Several countries have relocated their capital city over time for political, economic, or strategic reasons, and a few are in the process of building or designating a new capital today.

Why some countries choose a smaller city as capital

Choosing a smaller or purpose-built city as the capital, rather than the largest existing city, is sometimes a deliberate strategy to avoid over-concentrating political and economic power in a single location, or to select a neutral site acceptable to competing regional interests.

Frequently Asked Questions

Why isn't New York City the capital of the United States?

Washington, D.C. was deliberately created as a new, neutral federal district specifically to serve as the national capital, partly to avoid giving any single existing state or city outsized influence over the federal government.

Do capital cities always have special legal status?

Often, yes — many capitals are established as a distinct administrative district or federal territory separate from the states or provinces around them, though the exact legal arrangement varies by country.