Sydney vs Madrid
Sydney is about 20× larger than Madrid by administrative area. Sydney (Australia) covers 12,145 km² (4,689 mi²) with a population of 5.5 million, while Madrid (Spain) covers 604 km² (233 mi²) with 3.5 million residents.
| Metric | Sydney | Madrid |
|---|---|---|
| Area | 12,145 km² | 604 km² |
| Area (mi²) | 4,689 mi² | 233 mi² |
| Population | 5,450,496 | 3,506,730 |
| Population density | 449 /km² | 5,801 /km² |
| Area ratio | Sydney is ~20× larger by area than Madrid. | |
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Both outlines are drawn at the same scale.
Frequently asked questions
Is Sydney bigger than Madrid?
Yes — Sydney is about 20× larger by area: 12,145 km² vs 604 km².
How big is Sydney?
Sydney, Australia, covers about 12,145 km² (4,689 mi²) of administrative area.
How big is Madrid?
Madrid, Spain, covers about 604 km² (233 mi²) of administrative area.
Which city has more people, Sydney or Madrid?
Sydney has the larger population: 5.5 million vs 3.5 million. Population density is about 449 people/km² in Sydney and 5,801 people/km² in Madrid.
City boundaries from OpenStreetMap. Last updated 2026-10-27.
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