For most of us, living in these high end San Mateo neighborhoods may be well beyond our means, as these neighborhoods include some of the highest real estate and rental prices in California. Listed below are the most expensive neighborhoods in San Mateo for 2026, sorted by overall cost of living which includes: groceries, goods and services, real estate and rent prices. In case you’re wondering, the cost of living average for all cities across the nation is 100.
