Select two cities to compare
Discover the True Size of Cities
Click on either location name in the comparison panel to open a search box. Type to search for any city, state, or country - the search automatically finds matches across all types.
Once you select two locations, their shapes appear overlaid at their true relative scale. Mix and match different types - compare a city to a country to see how they stack up!
Most locations display their actual geographic boundaries. Some locations show a circular placeholder when detailed boundary data isn't available. These circles are sized correctly based on the location's area, so size comparisons remain accurate.
The comparison panel shows key statistics for each selection. The colored bars indicate which location has a higher value for each metric.
Press Esc to close any open window or search box.
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CityVersusCity is an interactive tool that lets you visually compare the true geographic size of cities, states, and countries around the world. Ever wondered how New York compares to Tokyo? Or how Texas stacks up against Germany? Now you can see it with your own eyes.
We overlay real geographic boundaries to scale, so you can finally understand just how big (or small) different places really are.
All data is for informational purposes only. Statistics are updated periodically and may not reflect real-time values.
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Last updated: January 2026
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Last updated: January 2026
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Last updated: January 2026
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Compare Sydney, Australia and Allen, Texas across population, geographic size, cost of living, housing, climate, safety, air quality, and income using CityVersusCity's interactive map and statistics.
| Metric | Sydney, Australia | Allen, Texas |
|---|---|---|
| Population | 5,312,000 | 105,623 |
| Area | 12,368 km² | 68 km² |
| Cost of living index | 85 | 103 |
| Median rent | $1,800 | $1,747 |
| Median income | $48,000 | $121,259 |
| Crime index | 25 | 45 |
| Air quality | 38 | 55 |
| Avg. temperature | 3°C to 38°C | 7°C to 16°C |
| Annual rainfall | 1,123 mm | 956 mm |
Sydney, Australia has a larger population than Allen, Texas (5,312,000 vs 105,623).
Sydney, Australia covers more land area than Allen, Texas (12,368 km² vs 68 km²).
The cost of living index is higher in Allen, Texas than in Sydney, Australia.
Median rent is higher in Sydney, Australia ($1,800 vs $1,747).
Sydney, Australia has a warmer average climate than Allen, Texas.