Naperville vs St George
Cost of Living Comparison · 2026
Naperville
St George
The Verdict
St George is 1.8% less expensive than Naperville overall. A household earning $75,000 in Naperville would need approximately $73,661 in St George to maintain the same standard of living.
Category-by-Category Breakdown
Index values · National average = 100 · Lower is more affordable
Salary Equivalence
A $75,000 salary in Naperville has the same purchasing power as $73,661 in St George.
Conversely, $75,000 in St George equals $76,364 in Naperville.
Living in Naperville vs St George
Housing Costs
Naperville's housing index of 130 is lower St George's 144, translating to median home prices of $430,000 vs $550,000. The $120,000 difference in home prices means roughly $7,800 per year in additional mortgage costs at current rates. Renters face a similar gap: $1,800/mo in Naperville compared to $1,525/mo in St George, a monthly difference of $275.
Grocery & Food Costs
Grocery expenses index at 104 in Naperville and 100 in St George. A household spending the national average of $475/month on groceries would pay approximately $494/month in Naperville vs $475/month in St George. The difference in grocery costs between these cities is relatively minor and unlikely to be a deciding factor in relocation.
Utility Expenses
Utility costs — electricity, gas, water, internet — index at 99 in Naperville and 87 in St George. Monthly utility bills average approximately $396 in Naperville vs $348 in St George. Climate differences between the two cities drive much of this gap, with heating and cooling costs varying substantially by region.
Healthcare
Healthcare costs index at 101 in Naperville and 96 in St George. This encompasses insurance premiums, doctor visit copays, dental care, and prescription costs. Healthcare costs are relatively similar between these two cities, though individual plan costs can still vary.
Income & Purchasing Power
Median household income is $118,254 in Naperville and $72,400 in St George. After adjusting for local costs, purchasing-power-equivalent incomes are approximately $105,584 and $65,818 respectively. Naperville residents enjoy stronger real purchasing power despite higher nominal wages.
Relocation Considerations
Under the standard 28% rule, a median-income household can allocate $2,759/month to housing in Naperville vs $1,689/month in St George. In Naperville, median rent of $1,800/mo fits within this budget. In St George, median rent of $1,525/mo remains manageable. The biggest category-level difference between these two cities is Housing, where the gap is 14 index points — focus your budget analysis there.
Frequently Asked Questions
Moving & Relocation Resources
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