Honolulu vs Rapid City
Cost of Living Comparison · 2026
Honolulu
Rapid City
The Verdict
Rapid City is 89.8% less expensive than Honolulu overall. A household earning $75,000 in Honolulu would need approximately $39,516 in Rapid City 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 Honolulu has the same purchasing power as $39,516 in Rapid City.
Conversely, $75,000 in Rapid City equals $142,347 in Honolulu.
Living in Honolulu vs Rapid City
Housing Costs
Honolulu's housing index of 275 is higher Rapid City's 91, translating to median home prices of $720,000 vs $325,000. The $395,000 difference in home prices means roughly $25,680 per year in additional mortgage costs at current rates. Renters face a similar gap: $2,400/mo in Honolulu compared to $1,100/mo in Rapid City, a monthly difference of $1,300.
Grocery & Food Costs
Grocery expenses index at 138 in Honolulu and 102 in Rapid City. A household spending the national average of $475/month on groceries would pay approximately $656/month in Honolulu vs $485/month in Rapid City. Rapid City offers a meaningful advantage on everyday food costs, saving roughly $2052/year.
Utility Expenses
Utility costs — electricity, gas, water, internet — index at 159 in Honolulu and 87 in Rapid City. Monthly utility bills average approximately $636 in Honolulu vs $348 in Rapid City. 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 107 in Honolulu and 107 in Rapid City. 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 $71,465 in Honolulu and $70,900 in Rapid City. After adjusting for local costs, purchasing-power-equivalent incomes are approximately $38,422 and $72,347 respectively. Rapid City residents come out ahead in real purchasing power.
Relocation Considerations
Under the standard 28% rule, a median-income household can allocate $1,668/month to housing in Honolulu vs $1,654/month in Rapid City. In Honolulu, median rent of $2,400/mo exceeds this threshold, suggesting renters may feel stretched. In Rapid City, median rent of $1,100/mo remains manageable. The biggest category-level difference between these two cities is Housing, where the gap is 184 index points — focus your budget analysis there.
Frequently Asked Questions
Moving & Relocation Resources
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