Port St Lucie vs Rapid City
Cost of Living Comparison · 2026
Port St Lucie
Rapid City
The Verdict
Rapid City is 1.0% less expensive than Port St Lucie overall. A household earning $75,000 in Port St Lucie would need approximately $74,242 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 Port St Lucie has the same purchasing power as $74,242 in Rapid City.
Conversely, $75,000 in Rapid City equals $75,765 in Port St Lucie.
Living in Port St Lucie vs Rapid City
Housing Costs
Port St Lucie's housing index of 103 is higher Rapid City's 91, translating to median home prices of $384,000 vs $325,000. The $59,000 difference in home prices means roughly $3,840 per year in additional mortgage costs at current rates. Renters face a similar gap: $1,800/mo in Port St Lucie compared to $1,100/mo in Rapid City, a monthly difference of $700.
Grocery & Food Costs
Grocery expenses index at 102 in Port St Lucie and 102 in Rapid City. A household spending the national average of $475/month on groceries would pay approximately $485/month in Port St Lucie vs $485/month in Rapid City. 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 93 in Port St Lucie and 87 in Rapid City. Monthly utility bills average approximately $372 in Port St Lucie vs $348 in Rapid City. Utility costs are relatively comparable between these two cities.
Healthcare
Healthcare costs index at 96 in Port St Lucie and 107 in Rapid City. This encompasses insurance premiums, doctor visit copays, dental care, and prescription costs. The 11-point gap reflects real differences in provider costs, insurance market competition, and regional healthcare infrastructure.
Income & Purchasing Power
Median household income is $81,100 in Port St Lucie and $70,900 in Rapid City. After adjusting for local costs, purchasing-power-equivalent incomes are approximately $81,919 and $72,347 respectively. Port St Lucie residents enjoy stronger real purchasing power despite higher nominal wages.
Relocation Considerations
Under the standard 28% rule, a median-income household can allocate $1,892/month to housing in Port St Lucie vs $1,654/month in Rapid City. In Port St Lucie, median rent of $1,800/mo fits within this budget. 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 12 index points — focus your budget analysis there.
Frequently Asked Questions
Moving & Relocation Resources
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