One of the wealthiest and most affluent neighborhoods in San Mateo is Hillsborough. While Hillsborough is technically a separate town adjacent to San Mateo, it is often associated with the broader San Mateo area due to its proximity and shared amenities.
Hillsborough is renowned for its exclusive estates, grand mansions, and luxurious properties. The neighborhood is characterized by large, beautiful homes, well-manicured gardens, and a prestigious reputation. Many high-net-worth individuals, executives, and prominent figures reside in Hillsborough, contributing to its reputation as one of the wealthiest neighborhoods in the region.