THE MILLBRAE LAND BRIEF
Land in the
San Francisco Peninsula setting.
Millbrae city has 3.27 square miles of land in San Mateo County. Its Census reference point is in San Francisco Peninsula, within Central California Foothills and Coastal Mountains.
Oak woodland, chaparral and grassland occupy foothills and low coastal mountains around the Central Valley. Narrow agricultural valleys interrupt this landscape of dry summers and wetter winters.
Regional context: Central California Foothills and Coastal Mountains ↗ · Classification at the Census reference point
Millbrae and San Mateo County
Millbrae is associated with San Mateo County in the Census boundary data. Start with the parcel’s tax bill to match the property to that jurisdiction, then confirm which government handles its land use.
Millbrae by land and water
The Census records 0.02 square miles of water within Millbrae, or 0.7% of its total area. It is 38.7 percentage points lower than the 39.5% recorded for San Mateo County. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Millbrae city has 74.4% of the land area of nearby Burlingame city (4.39 square miles). These areas describe boundaries, not comparable property prices.

