Cost of Living: St. Petersburg, FL vs Naperville, IL (2026)

St. Petersburg

Florida
106
VS

Naperville

Illinois
147

St. Petersburg is 28% cheaper than Naperville.

$1,542/mo ↓ 17%
Median Rent
$1,852/mo ↑ 20%
$73,118/yr ↓ 52%
Median Income
$150,937/yr ↑ 106%
$331,500 ↓ 35%
Home Value
$509,900 ↑ 54%
$1,435/mo ↓ 34%
Owner Costs
$2,161/mo ↑ 51%
260,646
Population
149,424

Tax Comparison

0%
Income Tax
4.95%
6.0%
State Sales Tax
6.25%
0.86%
Property Tax
2.07%

Affordability

25.3%
rent-to-income
Affordability
14.7%
rent-to-income

Detailed Comparison

When comparing St. Petersburg, FL and Naperville, IL, the overall cost of living indices are 106 and 147 respectively (national median = 100). Rent is $310/month cheaper in St. Petersburg, saving renters about $3,720/year.

Median household income is $77,819/year higher in Naperville. Home values also differ significantly — the median in St. Petersburg is $331,500 compared to $509,900 in Naperville.

Florida has no state income tax, giving St. Petersburg residents a significant tax advantage over Illinois's 4.95% rate.

Frequently Asked Questions

St. Petersburg vs Naperville — common questions

Is St. Petersburg or Naperville cheaper to live in?
Based on our cost index, St. Petersburg is cheaper to live in with an index of 106 compared to 147 (US average = 100).
What is the rent difference between St. Petersburg and Naperville?
Median rent in St. Petersburg is $1,542/month and in Naperville it's $1,852/month — a difference of $310/month.
Which city has higher income, St. Petersburg or Naperville?
Median household income is $73,118 in St. Petersburg and $150,937 in Naperville. Median household income is $77,819/year higher in Naperville.
How do taxes compare between Florida and Illinois?
Florida has 0% income tax, 6.0% sales tax, and 0.86% property tax. Illinois has 4.95% income tax, 6.25% sales tax, and 2.07% property tax.
Should I move to St. Petersburg or Naperville?
It depends on your priorities. St. Petersburg has a cost index of 106 with median rent of $1,542/mo, while Naperville has a cost index of 147 with rent of $1,852/mo. Consider income potential, tax burden, and lifestyle preferences alongside raw cost data.
View St. Petersburg details → View Naperville details →

More Comparisons

Other cost of living comparisons for St. Petersburg and Naperville

St. Petersburg vs. Lubbock St. Petersburg vs. Laredo St. Petersburg vs. Fort Wayne St. Petersburg vs. Irving St. Petersburg vs. Toledo St. Petersburg vs. Chesapeake Naperville vs. Surprise Naperville vs. Pasadena Naperville vs. Joliet Naperville vs. Mesquite Naperville vs. Jackson Naperville vs. Pomona