Auckland
559 km²
San Diego
964 km²
New Zealand
United States
Area Comparison
Auckland is 1.7x smaller than San Diego
Population Comparison
Auckland has 1.1x more people than San Diego
San Diego is significantly larger, covering 1.7 times the area of Auckland. San Diego spans 964 km² (372 mi²) while Auckland covers 559 km² (216 mi²) — a difference of 405 km².
To put Auckland's size in perspective, its area of 559 km² is roughly the same size as Seoul. Meanwhile, San Diego at 964 km² is roughly the same size as Berlin.
In more relatable units, Auckland's 559 km² is about 78,000 American football fields, 160 times the area of Central Park, or 9 times the area of Manhattan. San Diego, by comparison, equals about 135,000 American football fields, 16 times the area of Manhattan, or 9 times the area of Paris.
Auckland is a large metropolitan city in the North Island of New Zealand. It has an urban population of about 1,547,200. It is located in the greater Auckland Region, the area governed by Auckland Council, which includes outlying rural areas and the islands of the Hauraki Gulf, and which has a total population of 1,816,000 as of June 2025. It is the most populous city of New Zealand and the fifth-most populous city in Oceania.
Known as "City of Sails", Auckland covers 559 km² with a population of 1.5 million. The city was established in 1840. Auckland is known for Sky Tower, Hauraki Gulf islands, Auckland Harbour Bridge, among other attractions.
Auckland is the most populous city in New Zealand and the fifth-most populous city in all of Oceania.
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. Its history stretches 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.
Auckland has a population density of 2,630 people per km² — a moderately dense city. San Diego, with 1,442 people per km², is a relatively spread-out city. Auckland is noticeably denser, packing 1.8 times more people per square kilometer.
Density Gap
Auckland is 1.8x more densely populated
Auckland covers 559 km². Cities with a similar urban footprint include Budapest (525 km²), Mumbai (603 km²), Madrid (604 km²), Warsaw (517 km²), or Seoul (605 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 Auckland to San Diego is 10,471 km (6,506 miles), with an estimated flight time of ~12h 49m.
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