Dublin (formerly, Amador and Dougherty's Station) is a suburban city of the East (San Francisco) Bay and Tri-Valley regions of Alameda County, California, United States. It is located along the north side of Interstate 580 at the intersection with Interstate 680, roughly 35 miles (56 km) east of downtown San Francisco, 23 miles (37 km) east of downtown Oakland, and 31 miles (50 km) north of downtown San Jose.
It was referred to as "Dublin" in reference to the city of Dublin in Ireland because of the large number of Irish who lived there. The post office formally adopted the name in the 1890s.
The population was 46,063 (2010 census), and the 2019 estimate at 64,826. In 2013, Dublin was the second fastest-growing city in the state of California, behind only Santa Clarita. In 2019, census data showed Dublin as one of the fastest growing cities in the country. Dublin was formerly home to the headquarters of Sybase, Inc (now part of SAP SE) and is currently home to the headquarters for CallidusCloud, Patelco Credit Union, Ross Stores, TriNet, Medley Health, Challenge Dairy and Arlen Ness.
In 2018, Dublin was ranked #7 in Money's list of "The Best Places to Live".
According to the United States Census Bureau, the city has a total area of 14.9 square miles (40 km2) of which 0.03% is water.
The 2010 United States Census reported that Dublin had a population of 46,036, which grew over 57,000 as of 2016, and nearly 65,000 in 2018. It has been one of the fastest-growing cities in California, with its population nearly doubling during the past decade.