Home › Counties › San Mateo County, CA
The median home value in San Mateo County, CA is $1,581,355 as of 2026-08-31, up 3.55% from a year earlier.
Median Home Value
$1,581,355
Year-over-Year
+3.55%
National Rank
#5 of 3071
San Mateo County ranks 1st out of 58 counties in CA by median home price, and is +572.7% above the U.S. national median of $235,072. Within CA, the typical county has a median home value of $500,264, making San Mateo County +216.1% above the CA state median.
The typical home value decreased by 1.7%, from $1,609,425 in May 2026 to $1,581,355 in Aug 2026.
Monthly Zillow Home Value Index snapshots retained by HomePriceMap. A short history is shown now and grows automatically as each new monthly release arrives.
| Month | Typical home value | Year-over-year change |
|---|---|---|
| May 2026 | $1,609,425 | +1.0% |
| Jun 2026 | $1,595,764 | +1.7% |
| Jul 2026 | $1,596,366 | +2.5% |
| Aug 2026 | $1,581,355 | +3.5% |
Households here earn a median of $158,855 a year against a typical home value of $1,581,355 — a price-to-income ratio of 10.0×, past the 5× level generally described as severely unaffordable. That makes it one of the least affordable counties in the country relative to local wages. (How this is calculated.)
Reporting agencies in San Mateo County recorded a violent crime rate of 260 per 100,000 residents in 2024 — around the middle of the national range. Property crime runs at 1,900 per 100,000.
Based on 12 reporting cities covering 376,065 residents (FBI UCR data — what this covers).
The median home value in San Mateo County is $1,581,355. That's up 3.55% from a year earlier. That is about 572.7% above the U.S. national county median of $235,072, and makes San Mateo County the 1st most expensive of 58 counties in California.
Median household income here is $158,855, so a typical home costs about 10.0× annual household earnings — expensive compared with other U.S. counties.
Reporting police departments in San Mateo County recorded 260 violent crimes per 100,000 residents. That figure covers 376,065 residents across 12 reporting cities, so it reflects the county's incorporated areas rather than every community within its borders.
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