
San Miguel Contra Costa County
- County:
- San Luis Obispo County
- County Seat:
- No
- Area (mi²):
- 1.05
- State:
- California
San Miguel is a CDP located in San Luis Obispo County, California. San Miguel has a 2025 population of 4,157. San Miguel is currently growing at a rate of 1.24% annually and its population has increased by 27.79% since the most recent census, which recorded a population of 3,253 in 2020.
The average household income in San Miguel is $307,141 with a poverty rate of 2.76%. The median age in San Miguel is 46.8 years: 46.9 years for males, and 46.8 years for females.