Cost of Living: Naperville, IL vs New Haven, CT (2026)

Naperville

Illinois
147
VS

New Haven

Connecticut
95

Naperville is 55% more expensive than New Haven.

$1,852/mo ↑ 28%
Median Rent
$1,442/mo ↓ 22%
$150,937/yr ↑ 181%
Median Income
$53,771/yr ↓ 64%
$509,900 ↑ 105%
Home Value
$249,000 ↓ 51%
$2,161/mo ↑ 42%
Owner Costs
$1,520/mo ↓ 30%
149,424
Population
132,893

Tax Comparison

4.95%
Income Tax
6.99%
6.25%
State Sales Tax
6.35%
2.07%
Property Tax
2.15%

Affordability

14.7%
rent-to-income
Affordability
32.2%
rent-to-income

Detailed Comparison

When comparing Naperville, IL and New Haven, CT, the overall cost of living indices are 147 and 95 respectively (national median = 100). Rent is $410/month cheaper in New Haven, saving renters about $4,920/year.

Median household income is $97,166/year higher in Naperville. Home values also differ significantly — the median in Naperville is $509,900 compared to $249,000 in New Haven.

Illinois has a lower income tax rate, making Naperville slightly more tax-friendly.

Frequently Asked Questions

Naperville vs New Haven — common questions

Is Naperville or New Haven cheaper to live in?
Based on our cost index, New Haven is cheaper to live in with an index of 95 compared to 147 (US average = 100).
What is the rent difference between Naperville and New Haven?
Median rent in Naperville is $1,852/month and in New Haven it's $1,442/month — a difference of $410/month.
Which city has higher income, Naperville or New Haven?
Median household income is $150,937 in Naperville and $53,771 in New Haven. Median household income is $97,166/year higher in Naperville.
How do taxes compare between Illinois and Connecticut?
Illinois has 4.95% income tax, 6.25% sales tax, and 2.07% property tax. Connecticut has 6.99% income tax, 6.35% sales tax, and 2.15% property tax.
Should I move to Naperville or New Haven?
It depends on your priorities. Naperville has a cost index of 147 with median rent of $1,852/mo, while New Haven has a cost index of 95 with rent of $1,442/mo. Consider income potential, tax burden, and lifestyle preferences alongside raw cost data.
View Naperville details → View New Haven details →

More Comparisons

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