Buenos Aires vs Mexico City - City Size Comparison

Is Buenos Aires Bigger Than Mexico City?

In terms of area, Mexico City is 7.3x the size of Buenos Aires. Mexico City spans 1,485 km² (573 mi²) while Buenos Aires covers 203 km² (78 mi²) — a difference of 1,282 km². You could fit Buenos Aires inside Mexico City approximately 7 times.

About Buenos Aires

Argentina's capital and a cultural powerhouse of South America. Known as "The Paris of South America", Buenos Aires covers 203 km² with a population of 3.1 million. The city was established in 1536. Buenos Aires is known for Tango dancing, La Boca neighborhood, Recoleta Cemetery, among other attractions. The city's main transit system is the Buenos Aires Subte.

Buenos Aires has more bookstores per capita than any other city in the world

About Mexico City

Mexico's capital and largest city. Nicknamed "CDMX", Mexico City has an area of 1,485 km² and is home to 9.2 million people. The city dates back to 1325. Visitors come for Zócalo plaza, Chapultepec Castle, Frida Kahlo Museum, and much more. Getting around is easy with the Mexico City Metro.

Mexico City is sinking 50 cm per year because it was built on a lake bed

Metropolitan Area Comparison

Looking beyond city limits, the Mexico City metropolitan area covers 7,854 km², which is 1.7x larger than greater Buenos Aires at 4,758 km². The Mexico City metro area is also more populous, with 21.8 million people compared to 15.2 million.

Population Density

Buenos Aires has a population density of 15,074 people per km² — an extremely dense urban environment. Mexico City, with 6,202 people per km², is a densely populated city. Buenos Aires is noticeably denser, packing 2.4 times more people per square kilometer.

Climate & Time Zone

Buenos Aires has a humid subtropical climate while Mexico City experiences subtropical highland conditions. When it's noon in Buenos Aires, it's 9:00 AM in Mexico City — a 3-hour time difference.