Cost of Living: St. Louis, MO vs Peoria, AZ (2026)

St. Louis

Missouri
66
VS

Peoria

Arizona
125

St. Louis is 47% cheaper than Peoria.

$978/mo ↓ 44%
Median Rent
$1,743/mo ↑ 78%
$55,279/yr ↓ 41%
Median Income
$93,403/yr ↑ 69%
$185,100 ↓ 57%
Home Value
$429,400 ↑ 132%
$1,013/mo ↓ 36%
Owner Costs
$1,589/mo ↑ 57%
293,109
Population
194,338

Tax Comparison

4.95%
Income Tax
2.5%
4.225%
State Sales Tax
5.6%
0.93%
Property Tax
0.62%

Affordability

21.2%
rent-to-income
Affordability
22.4%
rent-to-income

Detailed Comparison

When comparing St. Louis, MO and Peoria, AZ, the overall cost of living indices are 66 and 125 respectively (national median = 100). Rent is $765/month cheaper in St. Louis, saving renters about $9,180/year.

Median household income is $38,124/year higher in Peoria. Home values also differ significantly — the median in St. Louis is $185,100 compared to $429,400 in Peoria.

Arizona has a lower income tax rate, making Peoria slightly more tax-friendly.

Frequently Asked Questions

St. Louis vs Peoria — common questions

Is St. Louis or Peoria cheaper to live in?
Based on our cost index, St. Louis is cheaper to live in with an index of 66 compared to 125 (US average = 100).
What is the rent difference between St. Louis and Peoria?
Median rent in St. Louis is $978/month and in Peoria it's $1,743/month — a difference of $765/month.
Which city has higher income, St. Louis or Peoria?
Median household income is $55,279 in St. Louis and $93,403 in Peoria. Median household income is $38,124/year higher in Peoria.
How do taxes compare between Missouri and Arizona?
Missouri has 4.95% income tax, 4.225% sales tax, and 0.93% property tax. Arizona has 2.5% income tax, 5.6% sales tax, and 0.62% property tax.
Should I move to St. Louis or Peoria?
It depends on your priorities. St. Louis has a cost index of 66 with median rent of $978/mo, while Peoria has a cost index of 125 with rent of $1,743/mo. Consider income potential, tax burden, and lifestyle preferences alongside raw cost data.
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More Comparisons

Other cost of living comparisons for St. Louis and Peoria

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