Sydney vs New York
Sydney is about 9.9× larger than New York by administrative area. Sydney (Australia) covers 12,145 km² (4,689 mi²) with a population of 5.5 million, while New York (United States) covers 1,224 km² (472 mi²) with 8.8 million residents.
| Metric | Sydney | New York |
|---|---|---|
| Area | 12,145 km² | 1,224 km² |
| Area (mi²) | 4,689 mi² | 472 mi² |
| Population | 5,450,496 | 8,804,190 |
| Population density | 449 /km² | 7,195 /km² |
| Area ratio | Sydney is ~9.9× larger by area than New York. | |
Frequently asked questions
Is Sydney bigger than New York?
Yes — Sydney is about 9.9× larger by area: 12,145 km² vs 1,224 km².
How big is Sydney?
Sydney, Australia, covers about 12,145 km² (4,689 mi²) of administrative area.
How big is New York?
New York, United States, covers about 1,224 km² (472 mi²) of administrative area.
Which city has more people, Sydney or New York?
New York has the larger population: 8.8 million vs 5.5 million. Population density is about 449 people/km² in Sydney and 7,195 people/km² in New York.
City boundaries from OpenStreetMap. Last updated 2026-08-26.
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