California city guide
Housing Costs and Affordability in Foster City, California
Foster City has about 32,792 residents. Median gross rent is $3,501 per month, while median household income is $199,143.
Quick answer
What income supports the median rent?
A household would need about $140,000 per year to keep Foster City's median gross rent near 30% of gross income. The current citywide median-rent-to-median-income benchmark is 21%.
Moderate housing-cost benchmarkData scope: figures use 2020-2024 ACS 5-Year estimates. The latest official release was checked Aug 01, 2026 at 03:00 UTC. The benchmark compares citywide medians and is designed for broad relocation research, not an individual budget or a live apartment search.
Personal rent check
Test Foster City rent against your income
Enter gross annual household income to compare a 30% monthly housing target with the citywide median gross rent.
Partial precision data Margins of error use the Census ACS 90% confidence level. Smaller geographies and subgroups can have wider uncertainty.
How Foster City compares
Median rent is 112% above the dataset median, while household income is 137% above the dataset median. Within California, Foster City ranks #344 from lowest to highest rent and #13 from highest to lowest household income among 347 cities in the current dataset.
The citywide rent-to-income benchmark is between 20% and 25%. This benchmark is useful for comparing cities under one formula, but households with different incomes, unit sizes or debt loads will experience costs differently.
Renting snapshot
$42,012 in annual median rent
Twelve months of median gross rent totals about $42,012. Gross rent includes contract rent plus estimated tenant-paid utilities where applicable in the ACS definition.
Buying snapshot
43.8x price-to-rent baseline
Median home value is about 43.8x annual median rent. This is a broad market comparison and does not include mortgage rates, taxes, insurance or maintenance.
Search terms, defined
How to read rent, home price and AMI searches
These distinctions keep the Census estimates comparable and prevent a historical survey measure from being mistaken for a live market quote.
- Average rent vs. median gross rent
- If you searched for the average rent in Foster City, the closest consistent Census measure on this page is $3,501 median gross rent. It is the midpoint among renter-occupied homes, not a live average asking rent. Gross rent includes contract rent plus estimated tenant-paid utilities where applicable.
- Home price vs. median home value
- The reported $1,838,200 median home value is the midpoint of owner estimates for owner-occupied homes. It is not an average sale price, listing price or current automated valuation.
- Household income vs. AMI
- The $199,143 median household income is a Census city estimate. It is not HUD Area Median Income (AMI), an AMI eligibility limit or an affordable-housing contract amount.
Keep comparing
Similar-size cities in California
Questions people ask
What is the median rent in Foster City?
Median gross rent is $3,501 per month in the 2020-2024 ACS 5-Year estimates.
What is the average rent in Foster City?
This page reports Census median gross rent of $3,501 per month, not a live average asking rent. Median is the midpoint among renter-occupied homes; gross rent includes contract rent plus estimated tenant-paid utilities where applicable.
What income is needed for the median rent?
A gross household income of about $140,000 per year would keep median gross rent near 30% of income. This is a planning benchmark, not a landlord qualification rule.
Is housing affordable in Foster City?
The citywide median-rent-to-median-income benchmark is 21%, which this site labels a moderate housing-cost benchmark. Individual costs can differ substantially.
Does this page report Area Median Income or AMI?
No. The $199,143 figure is Census median household income for the city. It is not HUD Area Median Income, an AMI limit or an affordable-housing contract amount.
What is the median home value in Foster City?
The median value of owner-occupied homes is $1,838,200 in the 2020-2024 ACS 5-Year estimates.
What is the average home price in Foster City?
This page reports a Census median owner-occupied home value of $1,838,200, not an average sale price, current listing price or real-time market estimate.
Source: U.S. Census Bureau, 2020-2024 ACS 5-Year Estimates. Latest release checked Aug 01, 2026 at 03:00 UTC. Review the definitions and methodology.