Oakland
- County:
- Alameda County
- County Seat:
- Yes
- Area (mi²):
- 55.963
- State:
- California
Oakland is a city located in Alameda County, California. Oakland has a 2026 population of 443,554. It is also the county seat of Alameda County. Oakland is currently growing at a rate of 0.93% annually and its population has increased by 0.58% since the most recent census, which recorded a population of 440,983 in 2020.