Dublin
115 km²
San Diego
964 km²
City Map Compare/Dublin vs San Diegovs
vs
2 km
Ireland
United States
Area Comparison
Dublin is 8.4x smaller than San Diego
Population Comparison
Dublin has 2.4x fewer people than San Diego
San Diego is significantly larger, covering 8.4 times the area of Dublin. San Diego spans 964 km² (372 mi²) while Dublin covers 115 km² (44 mi²) — a difference of 849 km². You could fit Dublin inside San Diego approximately 8 times.
To put Dublin's size in perspective, its area of 115 km² is roughly the same size as San Francisco. Meanwhile, San Diego at 964 km² is roughly the same size as Berlin.
Picture Dublin another way: its area is large enough to fit about 16,000 American football fields, 57 times the area of Monaco, or 34 times the area of Central Park. San Diego works out to about 135,000 American football fields, 16 times the area of Manhattan, or 9 times the area of Paris.
Dublin is the capital and largest city of Ireland. Situated on Dublin Bay at the mouth of the River Liffey, it is in the province of Leinster, and is bordered on the south by the Dublin Mountains, part of the Wicklow Mountains range. Dublin is the largest city by population on the island of Ireland; at the 2022 census, the city council area had a population of 592,713, while the city, including suburbs, had a population of 1,263,219, and County Dublin had a population of 1,501,500.
Known as "The Fair City", Dublin covers 115 km² with a population of 0.6 million. The city was established in 841. Dublin is known for Trinity College, Guinness Storehouse, Temple Bar, among other attractions.
Dublin sits on Dublin Bay at the mouth of the River Liffey, bordered to the south by the Dublin Mountains.
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.
Nicknamed "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.
Dublin has a population density of 5,130 people per km² — a densely populated city. San Diego, with 1,442 people per km², is a relatively spread-out city. Dublin is dramatically more crowded, with 3.6x the population density.
Size Ratio
Dublin fits inside San Diego ~8 times
Density Gap
Dublin is 3.6x more densely populated
History
Dublin is ~928 years older
Dublin covers 115 km². Cities with a similar urban footprint include Vancouver (115 km²), San Francisco (121 km²), Paris (105 km²), Barcelona (101 km²), or Doha (132 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 Dublin to San Diego is 8,369 km (5,200 miles), with an estimated flight time of ~10h 21m.
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