Houston
1,725 km²
Tehran
730 km²
United States
Iran
Area Comparison
Houston is 2.4x larger than Tehran
Population Comparison
Houston has 4.0x fewer people than Tehran
Houston is significantly larger, covering 2.4 times the area of Tehran. Houston spans 1,725 km² (666 mi²) while Tehran covers 730 km² (282 mi²) — a difference of 995 km². You could fit Tehran inside Houston approximately 2 times.
To put Houston's size in perspective, its area of 1,725 km² is roughly the same size as London. Meanwhile, Tehran at 730 km² is roughly the same size as New York City.
Picture Houston another way: its area is large enough to fit about 242,000 American football fields, 29 times the area of Manhattan, or 16 times the area of Paris. For Tehran, that's about 102,000 American football fields, 12 times the area of Manhattan, or 7 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.
Tehran is the capital and largest city of Iran. It is also the capital of Tehran province and the administrative center for Tehran County and its Central District. With a population of around 9 million in the city, and 16.8 million in the metropolitan area, Tehran is the most populous city in Iran and West Asia, the second-largest metropolitan area in the Middle East after Cairo, and the 24th-most-populous metropolitan area in the world.
Tehran has an area of 730 km² and is home to 9.1 million people. Its history stretches back to 1524. Visitors come for Azadi Tower, Milad Tower, Golestan Palace, and much more. Getting around is easy with the Tehran Metro.
Tehran's metropolitan area holds 16.8 million people, making it the second-largest metropolitan area in the Middle East after Cairo.
Houston has a population density of 1,333 people per km² — a relatively spread-out city. Tehran, with 12,507 people per km², is an extremely dense urban environment. Tehran is dramatically more crowded, with 9.4x the population density.
Size Ratio
Tehran fits inside Houston ~2 times
Density Gap
Tehran is 9.4x more densely populated
History
Tehran is ~312 years older
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).
Tehran covers 730 km². Cities with a similar urban footprint include Singapore (733 km²), Bangalore (741 km²), Hamburg (755 km²), Nairobi (696 km²), or New York (783 km²).
The straight-line distance from Houston to Tehran is 11,950 km (7,425 miles), with an estimated flight time of ~14h 34m.
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