Millbrae is located in San mateo county California with a geographic area of 3.3 square miles. The total population in Millbrae is 22,998 with 48.9% male and 51.1% female. Children under age 5 represent 5.2% of the population, under age 18 equal 19.3% of the population and over age 65 is 19.7% of the population. The median household income is $126,319, per capita income is $58,695. There are a total of 7,959 housing units with 63.2% owner occupied. Education includes 14.8% of residents that are high school graduates and 52.5% with a bachelor's degree or higher. The average temperature in Millbrae in the summer is 63 degrees, and in the winter 43 degrees.
