Boston vs Hanoi - City Size Comparison

Is Boston Bigger Than Hanoi?

Yes — Hanoi is 14.5x larger than Boston by area. Hanoi spans 3,359 km² (1,297 mi²) while Boston covers 232 km² (90 mi²) — a difference of 3,127 km². You could fit Boston inside Hanoi approximately 14 times.

About Boston

A historic city and academic center in the northeastern US. Known as "Beantown", Boston covers 232 km² with a population of 0.7 million. The city was established in 1630. Boston is known for Harvard & MIT, Freedom Trail, Fenway Park, among other attractions. The city's main transit system is the MBTA (The T).

Boston's subway system (the T) opened in 1897, making it the oldest subway in North America

About Hanoi

Vietnam's capital with over a thousand years of history. Nicknamed "The City of the Ascending Dragon", Hanoi has an area of 3,359 km² and is home to 8.1 million people. Its history stretches back to 1010. Visitors come for Hoàn Kiếm Lake, Old Quarter (36 Streets), Ho Chi Minh Mausoleum, and much more. Getting around is easy with the Hanoi Metro.

Hanoi's Old Quarter has been a trading hub for nearly 1,000 years, with each street historically dedicated to a specific trade

Metropolitan Area Comparison

Looking beyond city limits, the Boston metropolitan area covers 11,700 km², which is 3.5x larger than greater Hanoi at 3,359 km². The Hanoi metro area is also more populous, with 8.1 million people compared to 4.9 million.

Population Density

Boston has a population density of 2,931 people per km² — a moderately dense city. Hanoi, with 2,397 people per km², is a moderately dense city. Both cities have comparable density, though Boston is slightly more compact.

Climate & Time Zone

Boston has a humid continental climate while Hanoi experiences humid subtropical conditions. Winters differ dramatically: Hanoi stays around 17°C while Boston drops to -1°C. When it's noon in Hanoi, it's midnight in Boston — a 12-hour time difference.