Illinois vs Oklahoma

Side-by-side cost of living comparison.

Illinois

Oklahoma

State Taxes

Sales Tax

6.25%

4.5%

+1.8 pp in Illinois

Income Tax (top rate)

4.95%

4.50%

+0.5 pp in Illinois

Housing (median across tracked cities)

Median 1BR Rent

$1,258

$882

+30% in Illinois

Median Home Value

$315,200

$215,100

+32% in Illinois

Income (median across tracked cities)

Median Household Income

$75,134

$66,702

+11% in Illinois

Climate (median across tracked cities)

Avg Annual Temperature

52.7°F

61.5°F

+8.8°F in Oklahoma

Housing, income, and climate are medians across the 1/1 cities we track in Illinois/Oklahoma — not population-weighted statewide figures. Taxes are exact state-level rates. Sources: US Census Bureau, ACS 5-Year; NOAA Climate Normals 1981–2010; Tax Foundation 2026.