Median rent is 9% lower in Chicago ($1,440/mo vs $1,582/mo). Buying is cheaper in Chicago, where the median home runs $334,100 versus $420,700. Households earn more in Phoenix ($81,332 vs $77,902 a year). Taken together, Chicago is the more affordable choice with a cost index of 102.5 against 104.7 — about 2% lower overall prices. After adjusting income for local prices, a typical paycheck stretches further in Phoenix, AZ.
Cost of living verdict
Chicago is 2% cheaper overall
Cost of Living Index: 102.5 in Chicago vs 104.7 in Phoenix (US national average = 100)
City A
Chicago, IL
City B
Phoenix, AZ
How much would you need to earn in Phoenix, AZ to maintain your standard of living from Chicago, IL?
Equivalent salary in Phoenix, AZ
$76,603
You'd need $1,603 more (2% higher).
Based on BEA Regional Price Parity (cost index) for each metro area. This estimates overall purchasing power; it does not account for taxes or take-home pay differences.
Metric
Chicago
Illinois
Phoenix
Arizona
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: Census ACS, BEA, HUD Fair Market Rents, EPA AirNow, Tax Foundation
Median rent is modestly lower in Chicago at $1,440/mo compared to $1,582/mo in Phoenix (9% gap). Home buyers face a steeper market in Phoenix: the median home is $420,700 versus $334,100 in Chicago — 21% more expensive.
Metric
Chicago
Phoenix
Software Developer
Registered Nurse
Elementary Teacher
Electrician
Accountant
Higher wage highlighted · BLS OEWS 2023 (metro-level data)
State tax data is not yet available for these cities.
Chicago
Income tax: N/A
Sales tax: N/A
Phoenix
Income tax: N/A
Sales tax: N/A
Phoenix has cleaner air on average: 28.0 AQI (Good) compared to 31.0 AQI (Good) in the other city. Lower AQI means cleaner, healthier air.
Chicago is cheaper overall, with a cost of living index of 102.5 versus 104.7 (US average = 100). That means prices run about 2% lower in Chicago.
Median rent is $1,440/mo in Chicago, IL and $1,582/mo in Phoenix, AZ. Chicago, IL has the lower rent by about 9%.
Median household income is $77,902 in Chicago, IL and $81,332 in Phoenix, AZ. Phoenix, AZ has the higher median income. Note that BLS occupational wages in the table above show wages for specific jobs.
Phoenix, AZ has better air quality on average: 28.0 AQI versus 31.0 AQI. Both are EPA AirNow annual averages; lower is better.
State tax data is not yet available for one or both cities.
To maintain the same purchasing power, a salary of $100,000 in Chicago, IL is equivalent to roughly $102,137 in Phoenix, AZ (using the BEA Regional Price Parity ratio). Use the salary calculator above for any income amount.
Data last updated: June 1, 2026 · Sources: US Census ACS, BEA RPP, BLS OEWS, HUD FMR, EPA AirNow, Tax Foundation · Methodology
