Hanoi
3,359 km²
Mexico City
1,485 km²
Vietnam
Mexico
Area Comparison
Hanoi is 2.3x larger than Mexico City
Population Comparison
Hanoi has 1.1x fewer people than Mexico City
In terms of area, Hanoi is 2.3x the size of Mexico City. Hanoi spans 3,359 km² (1,297 mi²) while Mexico City covers 1,485 km² (573 mi²) — a difference of 1,874 km². You could fit Mexico City inside Hanoi approximately 2 times.
To put Hanoi's size in perspective, its area of 3,359 km² is about 1.2x smaller than Rhode Island. Meanwhile, Mexico City at 1,485 km² is roughly the same size as London.
Hanoi's footprint is roughly about 470,000 American football fields, 57 times the area of Manhattan, or 32 times the area of Paris — pick whichever unit feels intuitive. Mexico City, by comparison, equals about 208,000 American football fields, 25 times the area of Manhattan, or 14 times the area of Paris.
Hanoi is the capital and second-most populous municipality of Vietnam. It encompasses an area of 3,358.6 km2 (1,296.8 mi2), and as of 2025 has a population of 8,807,523. Hanoi had the second-highest gross regional domestic product of all Vietnamese provinces and municipalities at US$48 billion in 2023, behind Ho Chi Minh City. It hosts 78 foreign embassies, the headquarters of the Vietnam People's Army (VPA), its Vietnam National University system, and other governmental organizations.
Known as "City Between Rivers", Hanoi covers 3,359 km² with a population of 8.1 million. The city was established in 1010. Hanoi is known for Hoan Kiem Lake, Old Quarter, Temple of Literature, among other attractions. The city's main transit system is the Hanoi Metro.
Hanoi encompasses 3,358.6 square kilometers and had a population of nearly 8.8 million as of 2025.
Mexico City is the capital and most populous city of Mexico, as well as the most populous city in North America. It is one of the most important cultural and financial centers in the world, and is classified as an Alpha world city according to the Globalization and World Cities Research Network (GaWC) 2024 ranking. Mexico City is located in the Valley of Mexico within the high Mexican central plateau, at an altitude of 2,240 meters.
Nicknamed "CDMX", Mexico City has an area of 1,485 km² and is home to 9.2 million people. It was established in 1325. Visitors come for Zocalo square, Chapultepec Park, Frida Kahlo Museum, and much more. Getting around is easy with the Mexico City Metro.
Mexico City sits at an altitude of 2,240 meters in the Valley of Mexico on the high Mexican central plateau.
Looking beyond city limits, the Mexico City metropolitan area covers 7,854 km², which is 2.3x larger than greater Hanoi at 3,359 km². The Mexico City metro area is also more populous, with 21.8 million people compared to 8.1 million.
Hanoi has a population density of 2,397 people per km² — a moderately dense city. Mexico City, with 6,202 people per km², is a densely populated city. Mexico City is noticeably denser, packing 2.6 times more people per square kilometer.
This comparison spans continents — Hanoi in Asia versus Mexico City in North America. Despite the geographic distance, comparing their sizes reveals surprising insights about how cities grow worldwide.
Hanoi has a humid subtropical climate while Mexico City experiences subtropical highland conditions. Summers are notably different: Hanoi averages 30°C compared to 18°C in Mexico City. When it's noon in Hanoi, it's midnight in Mexico City — a 13-hour time difference.
Size Ratio
Mexico City fits inside Hanoi ~2 times
Density Gap
Mexico City is 2.6x more densely populated
Time Difference
13 hours apart
History
Hanoi is ~315 years older
Hanoi covers 3,359 km². Cities with a similar urban footprint include Karachi (3,527 km²), Cairo (3,085 km²), Dubai (4,114 km²), Lima (2,672 km²), or Moscow (2,511 km²).
Mexico City covers 1,485 km². Cities with a similar urban footprint include Delhi (1,484 km²), São Paulo (1,521 km²), Bangkok (1,569 km²), London (1,572 km²), or Bogotá (1,578 km²).
The straight-line distance from Hanoi to Mexico City is 14,759 km (9,171 miles), with an estimated flight time of ~17h 52m.
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