The earliest residents of Dublin were Native Americans. Archaeological evidence suggests that Native Americans lived here for tens of thousands of years. They are undoubtedly the first residents and the residents who lived here longest. Their beliefs say they were here at the dawn of time.
Estimates suggest there were between 200 to 400 Native Americans living in the Amador Valley before the 1700s. Dublin-area Native American tribes spoke Chochenyo Ohlone and Bay Miwok. Specifically, the Seunen, Ssouyen, and Pelnen tribes lived in parts of what is now Dublin. Each tribe had a population varying from two hundred to four hundred people. Villages could be found along local streams or along the large marsh that then stretched from Dublin and Pleasanton. The plentiful wildlife, water and easy passage to the San Francisco Bay Area, the Central Valley, and the Santa Clara Valley resulted in a rich mixture of interacting and interconnected but separate communities.