District of Columbia vs Illinois
Side-by-side cost of living comparison.
State Taxes
Sales Tax
6%
6.25%
+0.3 pp in Illinois
Income Tax (top rate)
10.75%
4.95%
+5.8 pp in District of Columbia
Housing (median across tracked cities)
Median 1BR Rent
$1,885
$1,258
+33% in District of Columbia
Median Home Value
$724,600
$315,200
+57% in District of Columbia
Income (median across tracked cities)
Median Household Income
$106,287
$75,134
+29% in District of Columbia
Climate (median across tracked cities)
Avg Annual Temperature
58.2°F
52.7°F
+5.5°F in District of Columbia
Housing, income, and climate are medians across the 1/1 cities we track in District of Columbia/Illinois — 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.