Rapid City vs St. Paul
Cost of Living Comparison · 2026
Rapid City
St. Paul
The Verdict
Living in Rapid City costs 2.0% less than St. Paul. To match the purchasing power of a $75,000 salary in Rapid City, you would need $76,531 in St. Paul.
Category-by-Category Breakdown
Index values · National average = 100 · Lower is more affordable
Salary Equivalence
A $75,000 salary in Rapid City has the same purchasing power as $76,531 in St. Paul.
Conversely, $75,000 in St. Paul equals $73,500 in Rapid City.
Living in Rapid City vs St. Paul
Housing Costs
Rapid City's housing index of 91 is lower St. Paul's 98, translating to median home prices of $325,000 vs $260,000. The $65,000 difference in home prices means roughly $4,224 per year in additional mortgage costs at current rates. Renters face a similar gap: $1,100/mo in Rapid City compared to $1,300/mo in St. Paul, a monthly difference of $200.
Grocery & Food Costs
Grocery expenses index at 102 in Rapid City and 103 in St. Paul. A household spending the national average of $475/month on groceries would pay approximately $485/month in Rapid City vs $489/month in St. Paul. 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 87 in Rapid City and 97 in St. Paul. Monthly utility bills average approximately $348 in Rapid City vs $388 in St. Paul. Utility costs are relatively comparable between these two cities.
Healthcare
Healthcare costs index at 107 in Rapid City and 105 in St. Paul. 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 $70,900 in Rapid City and $57,718 in St. Paul. After adjusting for local costs, purchasing-power-equivalent incomes are approximately $72,347 and $57,718 respectively. Rapid City residents enjoy stronger real purchasing power despite higher nominal wages.
Relocation Considerations
Under the standard 28% rule, a median-income household can allocate $1,654/month to housing in Rapid City vs $1,347/month in St. Paul. In Rapid City, median rent of $1,100/mo fits within this budget. In St. Paul, median rent of $1,300/mo remains manageable. The biggest category-level difference between these two cities is Utilities, where the gap is 10 index points — focus your budget analysis there.
Frequently Asked Questions
Moving & Relocation Resources
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