Cost of Living in Illinois (IL)
Compare costs across 8 Illinois cities. From home services to salaries, see how IL stacks up against the national average.
8
Cities
93
Avg Cost Index
$61K
Avg Income
📊 Illinois Highlights: Most affordable city: Decatur (index 78). Most expensive: Naperville (index 118). The gap between cheapest and most expensive is 40 index points.
Cheapest and Most Expensive Cities in Illinois
| City | Population | Cost Index | Median Income | Tier |
|---|---|---|---|---|
| Chicago | 2.7M | 107 | $62K | major |
| Joliet | 150K | 96 | $66K | mid |
| Naperville | 150K | 118 | $126K | small |
| Rockford | 149K | 84 | $40K | mid |
| Springfield | 114K | 87 | $53K | small |
| Champaign | 88K | 86 | $40K | small |
| Bloomington | 78K | 90 | $62K | small |
| Decatur | 71K | 78 | $37K | small |