Houston
1,725 km²
Perth
6,417 km²
United States
Australia
Area Comparison
Houston is 3.7x smaller than Perth
Population Comparison
Houston has 1.1x more people than Perth
Perth is significantly larger, covering 3.7 times the area of Houston. Perth spans 6,417 km² (2,478 mi²) while Houston covers 1,725 km² (666 mi²) — a difference of 4,692 km². You could fit Houston inside Perth approximately 3 times.
To put Houston's size in perspective, its area of 1,725 km² is roughly the same size as London. Meanwhile, Perth at 6,417 km² is roughly the same size as Shanghai.
Houston's footprint is roughly about 242,000 American football fields, 29 times the area of Manhattan, or 16 times the area of Paris — pick whichever unit feels intuitive. Perth, by comparison, equals about 899,000 American football fields, 110 times the area of Manhattan, or 61 times the area of Paris.
Houston is the most populous city in the U.S. state of Texas and the Southern United States. It is the fourth-most populous city in the United States, with a population of 2.3 million at the 2020 census. The Greater Houston metropolitan area, at 7.8 million residents, is the fifth-most populous metropolitan area in the nation and second-most populous in Texas. Located in Southeast Texas near Galveston Bay and the Gulf of Mexico, Houston is the county seat of Harris County.
Known as "Space City", Houston covers 1,725 km² with a population of 2.3 million. The city was established in 1836. Houston is known for NASA Johnson Space Center, Space Center Houston, Houston Astros, among other attractions.
Houston is the fourth-most populous US city with 2.3 million residents at the 2020 census, leading the entire South.
Perth is the capital city of Western Australia. It is the fourth-most-populous city in Australia, with a population of over 2.3 million within Greater Perth as of 2023. The world's most isolated major city by certain criteria, Perth is part of the South West Land Division of Western Australia, with most of Perth's metropolitan area on the Swan Coastal Plain between the Indian Ocean and the Darling Scarp.
Also known as "City of Light", Perth has an area of 6,417 km² and is home to 2.1 million people. The city dates back to 1829. Visitors come for Swan River, Kings Park, Cottesloe Beach, and much more.
Perth is considered the world's most isolated major city by certain criteria, sitting on Australia's west coast.
Houston has a population density of 1,333 people per km² — a relatively spread-out city. Perth, with 333 people per km², is a low-density, sprawling urban area. Houston is dramatically more crowded, with 4.0x the population density.
Size Ratio
Houston fits inside Perth ~3 times
Density Gap
Houston is 4.0x more densely populated
Houston covers 1,725 km². Cities with a similar urban footprint include Riyadh (1,798 km²), Johannesburg (1,644 km²), Bogotá (1,578 km²), London (1,572 km²), or Bangkok (1,569 km²).
Perth covers 6,417 km². Cities with a similar urban footprint include Shanghai (6,341 km²), Guangzhou (7,434 km²), Istanbul (5,461 km²), Wuhan (8,569 km²), or Melbourne (9,993 km²).
The straight-line distance from Houston to Perth is 17,035 km (10,585 miles), with an estimated flight time of ~20h 32m.
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