Mexico
Australia
Area Comparison
Mexico City is 8.3x smaller than Sydney
Population Comparison
Mexico City has 1.7x more people than Sydney
In terms of area, Sydney is 8.3x the size of Mexico City. Sydney spans 12,368 km² (4,775 mi²) while Mexico City covers 1,485 km² (573 mi²) — a difference of 10,883 km². You could fit Mexico City inside Sydney approximately 8 times.
To put Mexico City's size in perspective, its area of 1,485 km² is roughly the same size as London. Meanwhile, Sydney at 12,368 km² is about 2.0x the size of Shanghai.
Mexico's capital and largest city. Known as "CDMX", Mexico City covers 1,485 km² with a population of 9.2 million. The city was established in 1325. Mexico City is known for Zócalo plaza, Chapultepec Castle, Frida Kahlo Museum, among other attractions. The city's main transit system is the Mexico City Metro.
Mexico City is sinking 50 cm per year because it was built on a lake bed
Australia's largest city, known for the Opera House. Often called "The Harbour City", Sydney has an area of 12,368 km² and is home to 5.3 million people. The city dates back to 1788. Visitors come for Sydney Opera House, Harbour Bridge, Bondi Beach, and much more. Getting around is easy with the Sydney Trains.
Sydney's administrative area is so large it stretches from the coast to the Blue Mountains foothills
Looking beyond city limits, the Sydney metropolitan area covers 12,368 km², which is 1.6x larger than greater Mexico City at 7,854 km². The Mexico City metro area is also more populous, with 21.8 million people compared to 5.3 million.
Mexico City has a population density of 6,202 people per km² — a densely populated city. Sydney, with 429 people per km², is a low-density, sprawling urban area. Mexico City is dramatically more crowded, with 14.5x the population density.
This comparison spans continents — Mexico City in North America versus Sydney in Oceania. Despite the geographic distance, comparing their sizes reveals surprising insights about how cities grow worldwide.
Mexico City has a subtropical highland climate while Sydney experiences humid subtropical conditions. When it's noon in Sydney, it's midnight in Mexico City — a 16-hour time difference.
Size Ratio
Mexico City fits inside Sydney ~8 times
Density Gap
Mexico City is 14.5x more densely populated
Time Difference
16 hours apart
History
Mexico City is ~463 years older
The straight-line distance from Mexico City to Sydney is 12,973 km (8,061 miles), with an estimated flight time of ~15h 46m. See full distance details, including timezone difference and city facts.
Want to explore more? Compare city sizes for any two cities worldwide, or share your location live with friends.