Alameda County
geographical name
county in western California bordering on San Francisco Bay and containing the cities of Oakland and Berkeley population 1,510,271
Cite this Entry
“Alameda County.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Alameda%20County. Accessed 31 Oct. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share