Washington D.C.: A Compact yet Influential Capital
Washington D.C., the capital of the United States, is renowned for its historic monuments, political significance, and cultural institutions. But how big is Washington D.C. in miles? Let's delve into the geography and dimensions of this influential city.
Understanding Washington D.C.'s Boundaries
Washington D.C. is not a state, but a federal district that is not part of any state. It is bounded by the Potomac River to the south and west, and the Anacostia River to the east. The city's boundaries were established by the Residence Act of 1790, which set aside a 10-mile square area for the nation's capital.
Why a 10-Mile Square?
The 10-mile square (64 square miles) was chosen to ensure that the federal district would be large enough to accommodate the federal government's needs, yet small enough to be easily administered. This size also allowed for the creation of a separate jurisdiction for the federal government, independent of any one state.

Washington D.C.'s Area in Miles
So, how big is Washington D.C. in miles? The total area of Washington D.C. is approximately 68.34 square miles. The increase from the original 64 square miles is due to the addition of land from Virginia and Maryland in the late 19th and early 20th centuries.
Land and Water Area
Of the total area, 61.05 square miles is land, and the remaining 7.29 square miles is water. The water area includes the Potomac and Anacostia rivers, as well as several smaller bodies of water within the city.
Comparing Washington D.C.'s Size
To put Washington D.C.'s size into perspective, let's compare it to some other cities and entities:

- New York City: At approximately 302.6 square miles, New York City is more than four times the size of Washington D.C.
- San Francisco: San Francisco covers about 46.87 square miles, making it roughly two-thirds the size of Washington D.C.
- Vatican City: The independent city-state enclaved within Rome, Italy, is about 0.17 square miles, making it significantly smaller than Washington D.C.
Population Density: A Tale of Two Cities
Despite its relatively small size, Washington D.C. is the 23rd most populous city in the United States, with a population of over 700,000 residents. This high population density, with over 11,000 people per square mile, is a testament to the city's appeal and influence.
In Summary
Washington D.C., while compact in size, is a city of immense historical, political, and cultural significance. Its 68.34 square miles are home to iconic landmarks, vibrant neighborhoods, and a diverse population. Despite its small size, Washington D.C. punches well above its weight, serving as a global hub for politics, policy, and diplomacy.