Boulder vs Flagstaff
Cost of Living Comparison · 2026
Boulder
Flagstaff
The Verdict
The cost gap between these cities is 27.6%, with Flagstaff being the more affordable option. A $75,000 income in Boulder has equivalent purchasing power to $58,784 in Flagstaff.
Category-by-Category Breakdown
Index values · National average = 100 · Lower is more affordable
Salary Equivalence
A $75,000 salary in Boulder has the same purchasing power as $58,784 in Flagstaff.
Conversely, $75,000 in Flagstaff equals $95,690 in Boulder.
Living in Boulder vs Flagstaff
Housing Costs
Boulder's housing index of 230 is higher Flagstaff's 178, translating to median home prices of $750,000 vs $655,000. The $95,000 difference in home prices means roughly $6,180 per year in additional mortgage costs at current rates. Renters face a similar gap: $2,300/mo in Boulder compared to $1,750/mo in Flagstaff, a monthly difference of $550.
Grocery & Food Costs
Grocery expenses index at 107 in Boulder and 102 in Flagstaff. A household spending the national average of $475/month on groceries would pay approximately $508/month in Boulder vs $485/month in Flagstaff. 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 Boulder and 92 in Flagstaff. Monthly utility bills average approximately $376 in Boulder vs $368 in Flagstaff. Utility costs are relatively comparable between these two cities.
Healthcare
Healthcare costs index at 104 in Boulder and 102 in Flagstaff. 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 $73,123 in Boulder and $68,000 in Flagstaff. After adjusting for local costs, purchasing-power-equivalent incomes are approximately $49,407 and $58,621 respectively. Flagstaff residents come out ahead in real purchasing power.
Relocation Considerations
Under the standard 28% rule, a median-income household can allocate $1,706/month to housing in Boulder vs $1,587/month in Flagstaff. In Boulder, median rent of $2,300/mo exceeds this threshold, suggesting renters may feel stretched. In Flagstaff, median rent of $1,750/mo pushes past the recommended limit. The biggest category-level difference between these two cities is Housing, where the gap is 52 index points — focus your budget analysis there.
Frequently Asked Questions
Moving & Relocation Resources
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