F
182%
Overall NAT. AVG.
17%
Goods & Services NAT. AVG.
553%
Housing NAT. AVG.
Date & Last Updated: This data reflects 2025 and was released from C2ER in January, 2026; this is the most current data available.
The cost of living index is based on a national average of 100. For example, if the cost of living is 90, then it is 10% lower than average. If the cost of living is 110, then it is 10% higher than average. The breakdown for each index is as follows: goods & services (33%), groceries (13%), health care (5%), housing (30%), transportation (9%) and utilities (10%). If the cost of living data was unavailable for this city, estimates based upon nearby cities were used.
Index Foster City California National
Cost of living282143100
Goods & Services117115100
Groceries112108100
Health care121103100
Housing653197100
Transportation137136100
Utilities147144100
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An Overview of Cost of Living in Foster City, CA

Are you thinking about relocating, but curious about the potential cost of living in Foster City? Is it more expensive or more affordable than average? Based on the most recent report, the cost of living in Foster City stands at 282, making it 182% higher than the national average. The cost of living directly affects the affordability of one's desired lifestyle. Knowing the cost of housing, transportation, groceries and other essentials in the new area allows people to gauge whether they can maintain their preferred standard of living.

If affordability is among your top priorities when searching for a new place to live, this area may not be the ideal fit, as the cost of living in Foster City is among the most expensive in the United States. Just a minority of areas exhibit a cost of living at least 20% higher than the national average, and unfortunately, Foster City falls into this category, which may not align with your goal of finding a budget-friendly living environment.

Housing costs make up a big chunk of the cost of living in Foster City, and they usually eat into a large part of your take-home pay. Unfortunately, in this area, both buying a home and renting one costs 553.3% more than the average city. This includes stuff like home prices, rent, mortgage rates, and insurance.

Recurring goods and services expenses like haircuts, toothpaste, gym memberships and movie nights are a big part of your spending and make up 33% of the cost of living index. In Foster City, these items will cost you 17.1% more than what most folks pay, making it a bit more expensive to live here.

The substantial and relentless rise in grocery prices definitely warrants some attention. Over the past two years, grocery expenses have escalated by more than 10%. Having said that, the situation in Foster City is even less favorable, with grocery prices here being 12% higher than the national average.

Is Foster City Affordable?

Is Foster City an affordable place to live? That's a valid question to ask when you're thinking about moving to a new city. After all, how much it costs to live somewhere can be a huge factor in your decision. Affordability can be broken down into 3 common categories. The cost of living index (we talked about it earlier), housing expenses and income levels all play a big role in figuring out if a place is affordable. For instance, in Foster City, the median home price is 687.5% higher than what most folks pay across the country, and monthly rent prices are 240.2% higher than the usual rates. Income levels in Foster City come in at $238,926, which is 193.8% higher than the national average.

What Factors can Influence the Cost of Living in Foster City?

Taxes: Cities that impose higher taxes, including sales and income taxes, can contribute to an escalated cost of living. The added expense of taxes on everyday goods like clothing and food naturally results in higher overall costs. Similarly, a higher income tax rate can further elevate the cost of living. In Foster City, the general sales tax rate starts at 7.25%, and income tax rates begin at 1%.

Urbanization: Larger, urban areas boasting abundant amenities and robust employment prospects often exhibit a heightened cost of living, driven by the increased demand for services and residential relocation. Consequently, this leads to elevated home prices and higher rental rates. In contrast, sparsely populated rural locales or regions marked by diminished demand typically offer a more limited range of amenities and experience slower job market expansion. This translates into a more affordable cost of living.

Housing: When everyone's vying for homes in popular areas, it drives up property prices and rents, making the overall cost of living surge. On the flip side, in less sought-after locales, where housing demand is low, prices tend to dip, resulting in a more economical cost of living. In Foster City, the housing index comes in at 553.3% higher than the national average.

Where is the Data From?

The Foster City cost of living data you see above is sourced from the C2ER cost of living index, providing a practical and accurate means of comparing living expenses in urban areas. Updated quarterly, this index gathers data from over 300 independent researchers, covering more than 60 goods and services, in 6 different categories. These selections are made meticulously to represent a wide range of consumer expenditure categories. The weightings applied to cost differences are based on government survey data that tracks spending patterns among professional and executive households. It's important to note that while the C2ER index excludes data on sales or income tax rates, AreaVibes factors tax rates into the overall cost of living score for each region.

Cost Of Living Quick Facts

  • The cost of living in Foster City is 97% higher than the California average
  • The cost of living in Foster City is 182% higher than the national average
  • Foster City housing is 553% higher than the national average
  • California general sales tax is 42% higher than the national average
  • California state income tax is 61% lower than the national average

Most Affordable Places to Live in and Around Foster City

See all the best places to live around Foster City

Compare Foster City, CA Cost of Living

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      Price difference in compared to
      Cost of living index
      Goods & Services index
      Groceries index
      Health care index
      Housing index
      Transportation index
      Utilities index

      Median Income & Debt-To-Income Ratio

      Median Income Per Year Per Month Max Budget (28% DTI) Max Budget (36% DTI)
      Owners$247,963$20,664$5,785$7,440
      Renters$246,140$20,512$5,743$7,385
      To approximate the cost of living and the housing affordability in Foster City, CA, we can look at the percentage of income that is available to be spent on monthly housing, otherwise known as the debt-to-income ratio (DTI). To stay on the safe side, a consumer should not spend more than 28% of his or her gross income on housing-related expenses and costs and not more than 36% of income on all expenses and debts. Homeowners in Foster City have a median income of $247,963. Therefore, the amount that a consumer should spend on housing costs should be no more than $5,785 per month to avoid calamity and poverty. The renters in the city have an income of about $246,140, which would make their monthly maximum allowable rental costs $5,743.

      California Sales Tax

      State General Sales Tax With Max Surtax
      California 7.25% 10.5%

      California Income Tax

      State Income Tax (Low) Income Tax (High)
      California 1% 13.3%

      Goods & Services

      Item Foster City National avg. Difference
      Haircut $29.86$27.628.1%
      Beauty Salon $78.71$51.1154.0%
      Toothpaste $4.30$4.095.1%
      Shampoo $2.23$1.5444.6%
      Movie $15.15$12.8817.6%
      Yoga $24.17$19.6622.9%

      Groceries

      Item Foster City National avg. Difference
      Ground Beef $7.67$7.700.5%
      Fried Chicken $2.64$1.6658.8%
      Milk $5.25$4.7310.9%
      Potatoes $4.85$5.267.7%
      Pizza $18.08$12.7641.7%
      Beer $11.38$10.557.9%

      Health Care

      Item Foster City National avg. Difference
      Optometrist $178.91$140.0627.7%
      Doctor $179.78$153.8216.9%
      Dentist $165.31$123.1534.2%
      Ibuprofen $12.57$11.737.1%
      Lipitor $23.55$23.610.3%

      Housing

      Item Foster City National avg. Difference
      Home Price $2,572,042.00$326,622.00687.5%
      Avg. Mortgage Payment $3,832.30$2,480.2554.5%
      Apartment Rent $4,913.00$1,444.00240.2%

      Transportation

      Item Foster City National avg. Difference
      Gasoline $4.58$3.0649.8%
      Tire Balancing $70.08$65.217.5%

      Utilities

      Item Foster City National avg. Difference
      All Electricity $387.33$220.1276.0%
      Phone $193.96$195.710.9%
      Although the cost of living data is updated regularly, this cost of living information is to be used as estimates only as prices can change on an ongoing basis.

      Nearby cities with low cost of living

      City Population Cost of Living Index National Avg.
      Mountain View CDP, CA2,67513535.4%
      Cherryland, CA16,43016262.4%
      Ashland, CA24,25416868.2%
      Hayward, CA163,49117574.7%
      San Lorenzo, CA31,09417675.6%
      Foster City, CA34,247282182.4%

      Cities with similar population

      City Population Cost of Living Index National Avg.
      Stratford, ON34,224n/a 
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      Douglasville, GA34,3221000.4%
      Leduc, AB34,166n/a 
      Prairieville, LA34,1531066.4%
      Foster City, CA34,247282182.4%
      Date & Last Updated: This data reflects 2025 and was released from C2ER in January, 2026; this is the most current data available.