Lafayette vs Naperville
Cost of Living Comparison · 2026
Lafayette
Naperville
The Verdict
Lafayette is 19.6% less expensive than Naperville overall. A household earning $75,000 in Lafayette would need approximately $93,333 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 Lafayette has the same purchasing power as $93,333 in Naperville.
Conversely, $75,000 in Naperville equals $60,268 in Lafayette.
Living in Lafayette vs Naperville
Housing Costs
Lafayette's housing index of 73 is lower Naperville's 130, translating to median home prices of $214,000 vs $430,000. The $216,000 difference in home prices means roughly $14,040 per year in additional mortgage costs at current rates. Renters face a similar gap: $1,100/mo in Lafayette compared to $1,800/mo in Naperville, a monthly difference of $700.
Grocery & Food Costs
Grocery expenses index at 96 in Lafayette and 104 in Naperville. A household spending the national average of $475/month on groceries would pay approximately $456/month in Lafayette vs $494/month in Naperville. Lafayette offers a meaningful advantage on everyday food costs, saving roughly $456/year.
Utility Expenses
Utility costs — electricity, gas, water, internet — index at 97 in Lafayette and 99 in Naperville. Monthly utility bills average approximately $388 in Lafayette vs $396 in Naperville. Utility costs are relatively comparable between these two cities.
Healthcare
Healthcare costs index at 80 in Lafayette and 101 in Naperville. This encompasses insurance premiums, doctor visit copays, dental care, and prescription costs. The 21-point gap reflects real differences in provider costs, insurance market competition, and regional healthcare infrastructure.
Income & Purchasing Power
Median household income is $61,900 in Lafayette and $118,254 in Naperville. After adjusting for local costs, purchasing-power-equivalent incomes are approximately $68,778 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 $1,444/month to housing in Lafayette vs $2,759/month in Naperville. In Lafayette, median rent of $1,100/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 57 index points — focus your budget analysis there.
Frequently Asked Questions
Moving & Relocation Resources
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