Green Bay vs Naperville
Cost of Living Comparison · 2026
Green Bay
Naperville
The Verdict
Green Bay is 23.2% less expensive than Naperville overall. A household earning $75,000 in Green Bay would need approximately $97,674 in Naperville 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 Green Bay has the same purchasing power as $97,674 in Naperville.
Conversely, $75,000 in Naperville equals $57,589 in Green Bay.
Living in Green Bay vs Naperville
Housing Costs
Green Bay's housing index of 72 is lower Naperville's 130, translating to median home prices of $235,000 vs $430,000. The $195,000 difference in home prices means roughly $12,672 per year in additional mortgage costs at current rates. Renters face a similar gap: $950/mo in Green Bay compared to $1,800/mo in Naperville, a monthly difference of $850.
Grocery & Food Costs
Grocery expenses index at 98 in Green Bay and 104 in Naperville. A household spending the national average of $475/month on groceries would pay approximately $466/month in Green Bay vs $494/month in Naperville. Green Bay offers a meaningful advantage on everyday food costs, saving roughly $336/year.
Utility Expenses
Utility costs — electricity, gas, water, internet — index at 84 in Green Bay and 99 in Naperville. Monthly utility bills average approximately $336 in Green Bay vs $396 in Naperville. 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 96 in Green Bay and 101 in Naperville. 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 $55,200 in Green Bay and $118,254 in Naperville. After adjusting for local costs, purchasing-power-equivalent incomes are approximately $64,186 and $105,584 respectively. Naperville residents come out ahead in real purchasing power.
Relocation Considerations
Under the standard 28% rule, a median-income household can allocate $1,288/month to housing in Green Bay vs $2,759/month in Naperville. In Green Bay, median rent of $950/mo fits within this budget. In Naperville, median rent of $1,800/mo remains manageable. The biggest category-level difference between these two cities is Housing, where the gap is 58 index points — focus your budget analysis there.
Frequently Asked Questions
Moving & Relocation Resources
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