Sydney vs Barcelona
Sydney is about 120× larger than Barcelona by administrative area. Sydney (Australia) covers 12,145 km² (4,689 mi²) with a population of 5.5 million, while Barcelona (Spain) covers 101 km² (39 mi²) with 1.7 million residents.
| Metric | Sydney | Barcelona |
|---|---|---|
| Area | 12,145 km² | 101 km² |
| Area (mi²) | 4,689 mi² | 39 mi² |
| Population | 5,450,496 | 1,686,208 |
| Population density | 449 /km² | 16,629 /km² |
| Area ratio | Sydney is ~120× larger by area than Barcelona. | |
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Both outlines are drawn at the same scale.
Frequently asked questions
Is Sydney bigger than Barcelona?
Yes — Sydney is about 120× larger by area: 12,145 km² vs 101 km².
How big is Sydney?
Sydney, Australia, covers about 12,145 km² (4,689 mi²) of administrative area.
How big is Barcelona?
Barcelona, Spain, covers about 101 km² (39 mi²) of administrative area.
Which city has more people, Sydney or Barcelona?
Sydney has the larger population: 5.5 million vs 1.7 million. Population density is about 449 people/km² in Sydney and 16,629 people/km² in Barcelona.
City boundaries from OpenStreetMap. Last updated 2026-10-18.
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