Rapid City vs St George
Cost of Living Comparison · 2026
Rapid City
St George
The Verdict
The cost gap between these cities is 10.9%, with Rapid City being the more affordable option. A $75,000 income in Rapid City has equivalent purchasing power to $84,184 in St George.
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 $84,184 in St George.
Conversely, $75,000 in St George equals $66,818 in Rapid City.
Living in Rapid City vs St George
Housing Costs
Rapid City's housing index of 91 is lower St George's 144, translating to median home prices of $325,000 vs $550,000. The $225,000 difference in home prices means roughly $14,628 per year in additional mortgage costs at current rates. Renters face a similar gap: $1,100/mo in Rapid City compared to $1,525/mo in St George, a monthly difference of $425.
Grocery & Food Costs
Grocery expenses index at 102 in Rapid City and 100 in St George. A household spending the national average of $475/month on groceries would pay approximately $485/month in Rapid City vs $475/month in St George. 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 87 in St George. Monthly utility bills average approximately $348 in Rapid City vs $348 in St George. Utility costs are relatively comparable between these two cities.
Healthcare
Healthcare costs index at 107 in Rapid City and 96 in St George. 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 $70,900 in Rapid City and $72,400 in St George. After adjusting for local costs, purchasing-power-equivalent incomes are approximately $72,347 and $65,818 respectively. Rapid City residents enjoy stronger real purchasing power despite lower nominal wages.
Relocation Considerations
Under the standard 28% rule, a median-income household can allocate $1,654/month to housing in Rapid City vs $1,689/month in St George. In Rapid City, median rent of $1,100/mo fits within this budget. In St George, median rent of $1,525/mo remains manageable. The biggest category-level difference between these two cities is Housing, where the gap is 53 index points — focus your budget analysis there.
Frequently Asked Questions
Moving & Relocation Resources
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