City Comparison

Rapid City vs Santa Rosa

Cost of Living Comparison · 2026

Rapid City

South Dakota
98
Average
$325,000
Median Home
$1,100/mo
Median Rent
$70,900
Median Income

Santa Rosa

California
152
Very Expensive
$720,000
Median Home
$2,100/mo
Median Rent
$94,300
Median Income

The Verdict

35.5%

Living in Rapid City costs 35.5% less than Santa Rosa. To match the purchasing power of a $75,000 salary in Rapid City, you would need $116,327 in Santa Rosa.

Category-by-Category Breakdown

Index values · National average = 100 · Lower is more affordable

Housing
91
Rapid City
233
Santa Rosa
Groceries
102
Rapid City
107
Santa Rosa
Utilities
87
Rapid City
135
Santa Rosa
Transportation
102
Rapid City
128
Santa Rosa
Healthcare
107
Rapid City
112
Santa Rosa

Salary Equivalence

A $75,000 salary in Rapid City has the same purchasing power as $116,327 in Santa Rosa.

Conversely, $75,000 in Santa Rosa equals $48,355 in Rapid City.

Living in Rapid City vs Santa Rosa

Housing Costs

Rapid City's housing index of 91 is lower Santa Rosa's 233, translating to median home prices of $325,000 vs $720,000. 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: $1,100/mo in Rapid City compared to $2,100/mo in Santa Rosa, a monthly difference of $1,000.

Grocery & Food Costs

Grocery expenses index at 102 in Rapid City and 107 in Santa Rosa. A household spending the national average of $475/month on groceries would pay approximately $485/month in Rapid City vs $508/month in Santa Rosa. 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 135 in Santa Rosa. Monthly utility bills average approximately $348 in Rapid City vs $540 in Santa Rosa. 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 Rapid City and 112 in Santa Rosa. 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 $94,300 in Santa Rosa. After adjusting for local costs, purchasing-power-equivalent incomes are approximately $72,347 and $62,039 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 $2,200/month in Santa Rosa. In Rapid City, median rent of $1,100/mo fits within this budget. In Santa Rosa, median rent of $2,100/mo remains manageable. The biggest category-level difference between these two cities is Housing, where the gap is 142 index points — focus your budget analysis there.

Frequently Asked Questions

Rapid City is 35.5% more affordable overall with an index of 98 vs 152.
A $75,000 salary in Rapid City has equivalent purchasing power to approximately $116,327 in Santa Rosa, based on the cost of living difference.
Rapid City's housing index is 91 with median homes at $325,000, while Santa Rosa's is 233 with median homes at $720,000.

Moving & Relocation Resources

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