San Mateo County is home to more Fortune 500 headquarters per square mile than almost anywhere else in the country, which explains both the housing prices and the parking situation. Oracle, Gap, Gilead Sciences, and dozens of major tech and biotech firms call the Peninsula home, which creates a permanent baseline of housing demand that doesn't flex much even when broader markets soften. When your neighbors include some of the largest companies in the world, property values tend to hold up rather well.

Real estate in San Mateo County operates at a level of intensity that rewards buyers who are prepared and well-represented. Burlingame, San Mateo, and Foster City attract families who want top schools and bay access. Menlo Park and Atherton anchor the county's ultra-luxury end, Atherton consistently ranks as one of the most expensive zip codes in the entire United States, which is either inspiring or humbling depending on your budget. Redwood City and San Carlos offer more accessible entry points along Caltrain with strong appreciation histories. And then there's the coast: Half Moon Bay, Montara, and Pacifica provide a completely different pace of life just 20 minutes from the heart of Silicon Valley.

The San Mateo County coast is California at its most dramatically beautiful, fog rolling in over ochre bluffs, pumpkin patches that feel completely out of time, and whale watching from shore during migration season. The county's bay side offers the Coyote Point Recreation Area, Crystal Springs Reservoir, and Edgewood County Park for hiking, kayaking, and mountain biking within easy reach of every Peninsula city. If you're buying in San Mateo County, you're buying into one of the most enduring real estate markets in the state — and EO&A will make sure you do it right. Check out our Alameda County guide across the bay for more Bay Area options.