Median rent is 9% lower in Boise City ($1,446/mo vs $1,582/mo). Buying is cheaper in Phoenix, where the median home runs $420,700 versus $484,800. Households earn more in Boise City ($83,904 vs $81,332 a year). Taken together, Boise City is the more affordable choice with a cost index of 89.4 against 104.7 — about 15% lower overall prices. After adjusting income for local prices, a typical paycheck stretches further in Boise City, ID.
Cost of living verdict
Boise City is 15% cheaper overall
Cost of Living Index: 89.4 in Boise City vs 104.7 in Phoenix (US national average = 100)
City A
Boise City, ID
City B
Phoenix, AZ
How much would you need to earn in Phoenix, AZ to maintain your standard of living from Boise City, ID?
Equivalent salary in Phoenix, AZ
$87,861
You'd need $12,861 more (17% 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
Boise City
Idaho
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 Boise City at $1,446/mo compared to $1,582/mo in Phoenix (9% gap). Median home values are within 13% of each other: $484,800 in Boise City and $420,700 in Phoenix.
1BR Fair Market Rent
2BR Fair Market Rent
BLS OEWS 2023 — metro-level data
State tax data is not yet available for these cities.
Boise City
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 36.0 AQI (Good) in the other city. Lower AQI means cleaner, healthier air.
Pick Boise City if you prioritize lower overall cost of living (index 89.4 vs 104.7).
Pick Phoenix if you prioritize cleaner air quality (avg AQI 28.0).
Is Boise City cheaper than Phoenix?
Boise City is cheaper overall, with a cost of living index of 89.4 versus 104.7 (US average = 100). That means prices run about 15% lower in Boise City.
How much is rent in Boise City vs Phoenix?
Median rent is $1,446/mo in Boise City, ID and $1,582/mo in Phoenix, AZ. Boise City, ID has the lower rent by about 9%.
Which has higher salaries — Boise City or Phoenix?
Median household income is $83,904 in Boise City, ID and $81,332 in Phoenix, AZ. Boise City, ID 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?
Phoenix, AZ has better air quality on average: 28.0 AQI versus 36.0 AQI. Both are EPA AirNow annual averages; lower is better.
Which has lower taxes — Boise City or Phoenix?
State tax data is not yet available for one or both cities.
What salary do I need in Phoenix to match my Boise City income?
To maintain the same purchasing power, a salary of $100,000 in Boise City, ID is equivalent to roughly $117,148 in Phoenix, AZ (using the BEA Regional Price Parity ratio). Use the salary calculator above for any income amount.
Data last updated: December 1, 2026 · Sources: US Census ACS, BEA RPP, BLS OEWS, HUD FMR, EPA AirNow, Tax Foundation · Methodology
