San Francisco
121 km²
Zurich
88 km²
USA
Switzerland
Area Comparison
San Francisco is 1.4x larger than Zurich
Population Comparison
San Francisco has 2.0x more people than Zurich
San Francisco is significantly larger, covering 1.4 times the area of Zurich. San Francisco spans 121 km² (47 mi²) while Zurich covers 88 km² (34 mi²) — a difference of 33 km².
To put San Francisco's size in perspective, its area of 121 km² is about 1.2x the size of Paris (city proper). Meanwhile, Zurich at 88 km² is about 1.2x smaller than Paris (city proper).
In more relatable units, San Francisco's 121 km² is about 17,000 American football fields, 60 times the area of Monaco, or 35 times the area of Central Park. Zurich works out to about 12,000 American football fields, 180 times the area of Vatican City, or 44 times the area of Monaco.
San Francisco, officially the City and County of San Francisco, is the fourth-most populous city in California and the 17th-most populous in the United States, with a population of 826,079 in 2025. Among U.S. cities with a population of 300,000 or more, San Francisco is ranked first by per capita income, second by population density, and sixth by aggregate income as of 2023.
Known as "The City by the Bay", San Francisco covers 121 km² with a population of 0.9 million. The city was established in 1776. San Francisco is known for Golden Gate Bridge, Alcatraz Island, Cable cars, among other attractions. The city's main transit system is the BART & Muni.
San Francisco ranks first by per capita income among all US cities with 300,000+ residents as of 2023.
Zurich is the largest city in Switzerland and the capital of the canton of Zurich. It is in north-central Switzerland, at the northwestern tip of Lake Zurich. As of the end of 2024, the municipality had a population of 436,551, while the urban area was home to 1.45 million people (2020), and the Zurich metropolitan area had a total population of 2.1 million (2020). Zurich is a hub for railways, roads, and air traffic.
Zurich has an area of 88 km² and is home to 0.4 million people. It was founded around 15 BC. Visitors come for Lake Zurich, Bahnhofstrasse, Grossmünster, and much more. Getting around is easy with the ZVV (S-Bahn & Tram).
Zurich is Switzerland's largest city and sits at the northwestern tip of Lake Zurich in north-central Switzerland.
Looking beyond city limits, the San Francisco metropolitan area covers 6,984 km², which is 5.2x larger than greater Zurich at 1,334 km². The San Francisco metro area is also more populous, with 4.7 million people compared to 1.4 million.
San Francisco has a population density of 7,190 people per km² — a densely populated city. Zurich, with 4,886 people per km², is a moderately dense city. Both cities have comparable density, though San Francisco is slightly more compact.
This comparison spans continents — San Francisco in North America versus Zurich in Europe. Despite the geographic distance, comparing their sizes reveals surprising insights about how cities grow worldwide.
San Francisco has a Mediterranean climate while Zurich experiences oceanic conditions. When it's noon in Zurich, it's 3:00 AM in San Francisco — a 9-hour time difference.
Density Gap
San Francisco is 1.5x more densely populated
Time Difference
9 hours apart
History
Zurich is ~1,791 years older
San Francisco covers 121 km². Cities with a similar urban footprint include Vancouver (115 km²), Paris (105 km²), Miami (143 km²), Barcelona (101 km²), or Lisbon (100 km²).
Zurich covers 88 km². Cities with a similar urban footprint include Copenhagen (91 km²), Lisbon (100 km²), Barcelona (101 km²), Paris (105 km²), or Vancouver (115 km²).
The straight-line distance from San Francisco to Zurich is 9,370 km (5,822 miles), with an estimated flight time of ~11h 31m.
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