Joliet vs Lafayette
Cost of Living Comparison · 2026
Joliet
Lafayette
The Verdict
Lafayette is 5.6% less expensive than Joliet overall. A household earning $75,000 in Joliet would need approximately $71,053 in Lafayette 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 Joliet has the same purchasing power as $71,053 in Lafayette.
Conversely, $75,000 in Lafayette equals $79,167 in Joliet.
Living in Joliet vs Lafayette
Housing Costs
Joliet's housing index of 85 is higher Lafayette's 73, translating to median home prices of $275,000 vs $214,000. The $61,000 difference in home prices means roughly $3,960 per year in additional mortgage costs at current rates. Renters face a similar gap: $1,325/mo in Joliet compared to $1,100/mo in Lafayette, a monthly difference of $225.
Grocery & Food Costs
Grocery expenses index at 101 in Joliet and 96 in Lafayette. A household spending the national average of $475/month on groceries would pay approximately $480/month in Joliet vs $456/month in Lafayette. 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 94 in Joliet and 97 in Lafayette. Monthly utility bills average approximately $376 in Joliet vs $388 in Lafayette. Utility costs are relatively comparable between these two cities.
Healthcare
Healthcare costs index at 102 in Joliet and 80 in Lafayette. This encompasses insurance premiums, doctor visit copays, dental care, and prescription costs. The 22-point gap reflects real differences in provider costs, insurance market competition, and regional healthcare infrastructure.
Income & Purchasing Power
Median household income is $88,000 in Joliet and $61,900 in Lafayette. After adjusting for local costs, purchasing-power-equivalent incomes are approximately $92,632 and $68,778 respectively. Joliet residents enjoy stronger real purchasing power despite higher nominal wages.
Relocation Considerations
Under the standard 28% rule, a median-income household can allocate $2,053/month to housing in Joliet vs $1,444/month in Lafayette. In Joliet, median rent of $1,325/mo fits within this budget. In Lafayette, median rent of $1,100/mo remains manageable. The biggest category-level difference between these two cities is Healthcare, where the gap is 22 index points — focus your budget analysis there.
Frequently Asked Questions
Moving & Relocation Resources
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