Guangzhou
7,434 km²
San Diego
964 km²
China
United States
Area Comparison
Guangzhou is 7.7x larger than San Diego
Population Comparison
Guangzhou has 13.4x more people than San Diego
Guangzhou is significantly larger, covering 7.7 times the area of San Diego. Guangzhou spans 7,434 km² (2,870 mi²) while San Diego covers 964 km² (372 mi²) — a difference of 6,470 km². You could fit San Diego inside Guangzhou approximately 7 times.
To put Guangzhou's size in perspective, its area of 7,434 km² is about 1.2x the size of Shanghai. Meanwhile, San Diego at 964 km² is roughly the same size as Berlin.
Guangzhou's footprint is roughly about 1,000,000 American football fields, 130 times the area of Manhattan, or 71 times the area of Paris — pick whichever unit feels intuitive. San Diego, by comparison, equals about 135,000 American football fields, 16 times the area of Manhattan, or 9 times the area of Paris.
Guangzhou, also known as Canton, is the capital and largest city of Guangdong in southern China. Located on the Pearl River, about 120 kilometres (75 mi) northwest of Hong Kong and 145 kilometres (90 mi) north of Macau, Guangzhou has a history of over 2,200 years and was a major terminus of the Silk Road.
Known as "Canton", Guangzhou covers 7,434 km² with a population of 18.7 million. The city was founded around 214 BC. Guangzhou is known for Canton Tower, Chen Clan Ancestral Hall, Shamian Island, among other attractions. The city's main transit system is the Guangzhou Metro.
Guangzhou boasts a history of over 2,200 years and served as a major terminus of the ancient Silk Road
San Diego is a city on the Pacific coast of Southern California, adjacent to the Mexico–United States border. It is the eighth-most populous city in the U.S. and second-most populous city in California with a population of over 1.4 million, while the San Diego metropolitan area with over 3.3 million residents is the 18th-largest metropolitan area in the country. San Diego is the county seat of San Diego County.
Also known as "America's Finest City", San Diego has an area of 964 km² and is home to 1.4 million people. The city dates back to 1769. Visitors come for San Diego Zoo, Balboa Park, Coronado Beach, and much more.
San Diego sits directly on the Mexico-United States border, making it California's southwesternmost major city.
Guangzhou has a population density of 2,513 people per km² — a moderately dense city. San Diego, with 1,442 people per km², is a relatively spread-out city. Guangzhou is noticeably denser, packing 1.7 times more people per square kilometer.
Size Ratio
San Diego fits inside Guangzhou ~7 times
Density Gap
Guangzhou is 1.7x more densely populated
History
Guangzhou is ~1,983 years older
Guangzhou covers 7,434 km². Cities with a similar urban footprint include Wuhan (8,569 km²), Perth (6,417 km²), Shanghai (6,341 km²), Melbourne (9,993 km²), or Xi'an (10,097 km²).
San Diego covers 964 km². Cities with a similar urban footprint include Abu Dhabi (972 km²), Dallas (997 km²), Berlin (892 km²), Santiago (838 km²), or Hong Kong (1,114 km²).
The straight-line distance from Guangzhou to San Diego is 11,820 km (7,344 miles), with an estimated flight time of ~14h 24m.
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