Side-by-side cost of living comparison for 2026
Hartford and Naperville have very similar costs of living, with less than a 3% difference overall.
Index values shown. National average = 100. Lower is cheaper.
To maintain the same standard of living:
See exact take-home pay: Connecticut salaries · Illinois salaries
Housing is typically the biggest factor in any cost-of-living comparison. Hartford has a housing index of 121 while Naperville sits at 130 (national average = 100). The median home in Hartford costs $215,000 compared to $430,000 in Naperville, a difference of $215,000. Monthly rent follows a similar pattern: $1,200 in Hartford versus $1,800 in Naperville.
Groceries and everyday expenses show a narrower gap: Hartford scores 106 while Naperville scores 104.
Healthcare costs in Hartford (114) are higher than Naperville (101).
Median household income in Hartford is $40,068 compared to $118,254 in Naperville. When adjusted for cost of living, purchasing power is similar in both cities.
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