Dublin
- County:
- Alameda County
- County Seat:
- No
- Area (mi²):
- 15.229
- State:
- California
Dublin is a city located in Alameda County, California. Dublin has a 2026 population of 70,544. Dublin is currently growing at a rate of 0.6% annually but its population has decreased by -2.4% since the most recent census, which recorded a population of 72,281 in 2020.