Foster City is located in California. Foster City, California has a population of 33,511. Foster City is more family-centric than the surrounding county with 44.16% of the households containing married families with children. The county average for households married with children is 35.93%.
The median household income in Foster City, California is $173,721. The median household income for the surrounding county is $136,837 compared to the national median of $69,021. The median age of people living in Foster City is 39.6 years.
The average high temperature in July is 77.9 degrees, with an average low temperature in January of 41.1 degrees. The average rainfall is approximately 19.1 inches per year, with 0 inches of snow per year.
