Mortgage Rates in Foster City, California — March 2026
Updated March 2026 | Based on Foster City market data and regional lending conditions
Foster City is a growing city in California with a population of 33,901. The current 30-year fixed mortgage rate in Foster City is 6.83%, which is 0.18% above the national average. With a median home price of $781,000 and a 20% down payment of $156,200, homebuyers can expect a monthly principal and interest payment of approximately $4,086.
Current Mortgage Rates in Foster City, CA
Below are the current average mortgage rates available in the Foster City area as of March 2026. Rates vary by lender, credit score, and loan-to-value ratio. Use our free calculator above to see your personalized estimate.
| Loan Type | Rate | National Avg | Difference |
|---|---|---|---|
| 30-Year Fixed | 6.83% | 6.65% | +0.18% |
| 15-Year Fixed | 6.05% | 5.89% | +0.16% |
| 5/1 ARM | 6.3% | 6.15% | +0.15% |
| FHA | 6.54% | 6.25% | +0.29% |
| VA | 6.29% | 6.05% | +0.24% |
| Jumbo | 7.08% | 6.85% | +0.23% |
Foster City Housing Market Overview
The Foster City housing market is competitive with prices well above the national median. The median household income in Foster City is $82,500, and the cost of living index is 153.1 (national average = 100). Based on the 28% affordability rule, you would need an income of approximately $195,771 to comfortably afford the median-priced home in Foster City, which exceeds the current median household income.
Monthly Payment Breakdown for Foster City
Based on the median home price of $781,000 with 20% down ($156,200), here is what you can expect to pay monthly in Foster City:
15-Year vs. 30-Year Mortgage in Foster City
Choosing a 15-year mortgage in Foster City at 6.05% instead of a 30-year at 6.83% would save you $518,940 in total interest over the life of the loan. However, your monthly payment would be $5,289 instead of $4,086 — an increase of $1,203 per month.
Calculate Your Foster City Mortgage Payment
Use our free calculator to get a personalized estimate based on your loan amount, interest rate, and term.
Open Free CalculatorFrequently Asked Questions About Mortgages in Foster City
What are the current mortgage rates in Foster City, CA?
As of March 2026, the average 30-year fixed mortgage rate in Foster City, California is 6.83%, while the 15-year fixed rate is 6.05%. FHA loans average 6.54% and VA loans 6.29%. These rates are 0.18% above the national average of 6.65%.
How much is a monthly mortgage payment in Foster City?
Based on the median home price of $781,000 with 20% down, the estimated monthly mortgage payment in Foster City is $4,086 for principal and interest. Including property taxes of $482/month, the total monthly housing cost is approximately $4,568.
What income do I need to buy a home in Foster City?
Using the 28% rule, you would need an annual income of approximately $195,771 to afford the median-priced home in Foster City at $781,000. The median household income in Foster City is $82,500. This means most households would need to either earn above the median or consider homes below $781,000.
Is Foster City a good place to buy a home in 2026?
Foster City has a higher cost of living than average with a cost of living index of 153.1 (national average = 100). The property tax rate in California is 0.74%, which is below the national average. Foster City has a population of 33,901 and offers a balanced lifestyle.
Mortgage Rates in Other California Cities
Related Tools & Guides
Last updated: March 2026. Rates are approximate averages based on regional lending data for the Foster City, California area. Individual rates may vary by lender, credit score, loan amount, and other factors. Use our free calculator for a personalized estimate.