Median rent is 61% lower in Chicago ($1,380/mo vs $3,501/mo). Buying is cheaper in Chicago, where the median home runs $315,200 versus $1,774,500. Households earn more in Foster City ($193,633 vs $75,134 a year).
City A
Chicago, IL
City B
Foster City, CA
How much would you need to earn in Foster City, CA to maintain your standard of living from Chicago, IL?
A cost-of-living index isn't available for one of these cities yet, so we can't compute an equivalent salary.
Based on BEA Regional Price Parity (cost index) for each city's metro area. A rough estimate of overall purchasing power, not tax or take-home pay.
Metric
Chicago
Illinois
Foster City
California
👥Population
💰Median Household Income
Annual
🏠Median Gross Rent
Per month
🏡Median Home Value
📊Cost of Living Index
US avg = 100
🔑1BR Fair Market Rent
HUD FMR
🔑2BR Fair Market Rent
HUD FMR
🔑3BR Fair Market Rent
HUD FMR
🌬️Air Quality Index
Lower = cleaner
🏛️Top State Income Tax
Top marginal rate
🧾State Sales Tax
Statewide base rate
🎂Median Age
Years
✓ = better value · Sources: US Census ACS, BEA RPP, HUD FMR, EPA AirNow, Tax Foundation
Renters will find significantly cheaper housing in Chicago — median rent of $1,380/mo versus $3,501/mo in Foster City, a 61% difference. Home buyers face a steeper market in Foster City: the median home is $1,774,500 versus $315,200 in Chicago — 82% more expensive.
1BR Fair Market Rent
2BR Fair Market Rent
BLS OEWS 2023 — metro-level data
Illinois's top income tax rate is 4.95% versus 13.30% in California, so Chicago is more tax-friendly for high earners. Sales tax is 6.25% in Illinois and 7.25% in California; Chicago has the lower rate (local add-ons may apply in both).
Chicago
Income tax: 4.95%
Sales tax: 6.25%
Foster City
Income tax: 13.30%
Sales tax: 7.25%
Air quality data is available for Chicago (avg AQI 21.0) but not yet for Foster City.
Pick Foster City if you prioritize higher median household income ($193,633/yr).
Pick Chicago if you prioritize cheaper rent ($1,380/mo median).
Pick Chicago if you prioritize lower state income tax (4.95%).
Is Chicago cheaper than Foster City?
Cost of living index data is not yet available for one or both cities.
How much is rent in Chicago vs Foster City?
Median rent is $1,380/mo in Chicago, IL and $3,501/mo in Foster City, CA. Chicago, IL has the lower rent by about 61%.
Which has higher salaries — Chicago or Foster City?
Median household income is $75,134 in Chicago, IL and $193,633 in Foster City, CA. Foster City, CA has the higher median income. Note that BLS occupational wages in the table above show wages for specific jobs.
Which city has better air quality?
Air quality data is not yet available for one or both cities.
Which has lower taxes — Chicago or Foster City?
Illinois's top income tax rate is 4.95% and California's is 13.30%. Chicago, IL has the lower rate.
What salary do I need in Foster City to match my Chicago income?
RPP data needed for salary equivalence calculation is not yet available.
Data last updated: December 1, 2024 · Sources: US Census ACS, BEA RPP, BLS OEWS, HUD FMR, EPA AirNow, Tax Foundation · Methodology