Sydney vs Mexico City
Sydney is about 8.2× larger than Mexico City by administrative area. Sydney (Australia) covers 12,145 km² (4,689 mi²) with a population of 5.5 million, while Mexico City (Mexico) covers 1,485 km² (573 mi²) with 9.2 million residents.
| Metric | Sydney | Mexico City |
|---|---|---|
| Area | 12,145 km² | 1,485 km² |
| Area (mi²) | 4,689 mi² | 573 mi² |
| Population | 5,450,496 | 9,209,944 |
| Population density | 449 /km² | 6,202 /km² |
| Area ratio | Sydney is ~8.2× larger by area than Mexico City. | |
Frequently asked questions
Is Sydney bigger than Mexico City?
Yes — Sydney is about 8.2× larger by area: 12,145 km² vs 1,485 km².
How big is Sydney?
Sydney, Australia, covers about 12,145 km² (4,689 mi²) of administrative area.
How big is Mexico City?
Mexico City, Mexico, covers about 1,485 km² (573 mi²) of administrative area.
Which city has more people, Sydney or Mexico City?
Mexico City has the larger population: 9.2 million vs 5.5 million. Population density is about 449 people/km² in Sydney and 6,202 people/km² in Mexico City.
City boundaries from OpenStreetMap. Last updated 2026-08-20.
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