Houston
1,725 km²
Riyadh
1,798 km²
United States
Saudi Arabia
Area Comparison
Houston is 1.0x smaller than Riyadh
Population Comparison
Houston has 3.0x fewer people than Riyadh
Yes — Riyadh is 1.0x larger than Houston by area. Riyadh spans 1,798 km² (694 mi²) while Houston covers 1,725 km² (666 mi²) — a difference of 73 km².
To put Houston's size in perspective, its area of 1,725 km² is roughly the same size as London. Meanwhile, Riyadh at 1,798 km² is about 1.1x the size of London.
In more relatable units, Houston's 1,725 km² is about 242,000 American football fields, 29 times the area of Manhattan, or 16 times the area of Paris. Riyadh works out to about 252,000 American football fields, 30 times the area of Manhattan, or 17 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.
Riyadh is the capital and largest city of Saudi Arabia. It is also the capital of the Riyadh Province and the centre of the Riyadh Governorate. Located on the eastern bank of Wadi Hanifa, the current form of the metropolis largely emerged in the 1950s as an expansion of the 18th-century walled town, following the dismantling of its defensive fortifications.
Riyadh has an area of 1,798 km² and is home to 7.0 million people. It was established in 1746. Visitors come for Kingdom Centre Tower, Masmak Fortress, Al Faisaliah Tower, and much more.
Riyadh is the capital and largest city of Saudi Arabia, sitting on the eastern bank of Wadi Hanifa.
Houston has a population density of 1,333 people per km² — a relatively spread-out city. Riyadh, with 3,899 people per km², is a moderately dense city. Riyadh is noticeably denser, packing 2.9 times more people per square kilometer.
Density Gap
Riyadh is 2.9x 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).
Riyadh covers 1,798 km². Cities with a similar urban footprint include Houston (1,725 km²), Johannesburg (1,644 km²), Shenzhen (1,997 km²), Bogotá (1,578 km²), or London (1,572 km²).
The straight-line distance from Houston to Riyadh is 12,739 km (7,915 miles), with an estimated flight time of ~15h 29m.
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