Chicago vs St. Louis
Cost of living comparison — C2ER 2024-2025 data
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St. Louis is 18% cheaper than Chicago overall.Chicago has a cost of living index of 107 vs St. Louis at 88 (national average = 100). The biggest difference is housing — Chicago costs 38% more.

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Chicago
IL
107
COLI index
VS
St. Louis
MO
88
COLI index
Category Breakdown
| Category | Chicago | St. Louis | Difference |
|---|---|---|---|
| Overall COLI | 107 | 88 | -18% |
| Housing | 130 | 80 | -38% |
| Groceries | 105 | 101 | -4% |
| Transport | 108 | 100 | -7% |
| Healthcare | 103 | 102 | -1% |
| Utilities | 112 | 107 | -4% |
Median 1BR Rent
Chicago
$1,750/mo
St. Louis
$1,050/mo
Median Home Price
Chicago
$310,000
St. Louis
$205,000
Median Household Income
Chicago
$62,097
St. Louis
$48,438
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Last updated: June 2026
Methodology: Cost of living indices from C2ER Cost of Living Index 2024-2025. Rent data from Zillow December 2024. Home price data from Zillow Home Value Index December 2024. Household income from US Census Bureau ACS 2023. National average COLI = 100. Data updated annually.