Cost of Living in Foster City, CA
Cost of Living in Foster City, CA has an overall index of 315, 215% above the U.S. baseline of 100. The typical home value is $1,861,130; typical monthly rent is $3,613; and median household income is $193,633.
Cost index: committed city housing/rent inputs and BEA 2024 metro-area price parities. Home value: Zillow ZHVI market signal as of 2026-02. Rent: Zillow ZORI market signal as of 2026-02. A place-level signal, not a personal affordability decision or financial recommendation.
Home prices are the main source of pressure. This describes the local market, not your household.
Can your household carry the housing cost?
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Other California cities with a useful tradeoff.
Recommendations require usable housing and income data and exclude very small places for a city of this scale.
Frequently asked questions about Foster City
Living in Foster City
Is Foster City, CA an expensive place to live?+
Yes — Foster City is about 215% more expensive than the national average, with an overall Cost Index of 315. Housing is the biggest factor: the typical home here is valued around $1,861,130, and monthly rents average roughly $3,613. Day-to-day costs like groceries and utilities tend to run higher than average as well.
How does Foster City fit a household housing budget?+
Start with housing. Typical monthly rent is $3,613, while local median household income is $193,633. That implies a rent-burden proxy of about 22% before utilities and other costs. Use that as a planning signal for whether the place looks manageable under your own household assumptions.
How much are taxes in Foster City, CA?+
California uses a progressive model; 13.3% is top marginal-rate context. Applying the 0.71% state-level effective owner-occupied proxy to a home worth $1,861,130 gives a planning estimate near $13,214 per year; it is not a city, county, parcel, or individual tax bill. State plus average local sales-tax context is around 8.85%.
How much does it cost to rent in Foster City, CA?+
The typical monthly rent in Foster City is around $3,613. That's about 168% higher than the $1,348 national median. For comparison, the median home value here is $1,861,130, so buyers should also factor in mortgage payments, property taxes, and insurance.
How much does a house cost in Foster City, CA?+
The typical home value in Foster City is $1,861,130. With 20% down and the committed 6.11% national 30-year fixed benchmark as of 2026-03-12, principal and interest are roughly $9,032/month before property tax and insurance. This is a planning estimate, not a local lender quote. About 51% of residents here own their homes.
Are groceries and utilities expensive in Foster City?+
Grocery prices in Foster City are noticeably pricier compared to the rest of the US (index: 108, where 100 is the national average). Utility bills (electricity, gas, water) are on the high side (index: 173). Both add meaningful weight to your monthly budget here.
What is Foster City, CA like to live in?+
Foster City is a smaller city with a population of about 32,964. The median age of residents is 39.7, which is close to the national median. The local poverty rate is 4.64%, well below the national average of 12.4%.