City Comparison

Great Falls vs Sioux Falls

Cost of Living Comparison · 2026

Great Falls

Montana
88
Below Average
$325,000
Median Home
$1,050/mo
Median Rent
$55,800
Median Income

Sioux Falls

South Dakota
93
Below Average
$265,000
Median Home
$1,100/mo
Median Rent
$61,714
Median Income

The Verdict

5.4%

The cost gap between these cities is 5.4%, with Great Falls being the more affordable option. A $75,000 income in Great Falls has equivalent purchasing power to $79,261 in Sioux Falls.

Category-by-Category Breakdown

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

Housing
82
Great Falls
80
Sioux Falls
Groceries
99
Great Falls
97
Sioux Falls
Utilities
90
Great Falls
94
Sioux Falls
Transportation
95
Great Falls
98
Sioux Falls
Healthcare
92
Great Falls
101
Sioux Falls

Salary Equivalence

A $75,000 salary in Great Falls has the same purchasing power as $79,261 in Sioux Falls.

Conversely, $75,000 in Sioux Falls equals $70,968 in Great Falls.

Living in Great Falls vs Sioux Falls

Housing Costs

Great Falls's housing index of 82 is higher Sioux Falls's 80, translating to median home prices of $325,000 vs $265,000. The $60,000 difference in home prices means roughly $3,900 per year in additional mortgage costs at current rates. Renters face a similar gap: $1,050/mo in Great Falls compared to $1,100/mo in Sioux Falls, a monthly difference of $50.

Grocery & Food Costs

Grocery expenses index at 99 in Great Falls and 97 in Sioux Falls. A household spending the national average of $475/month on groceries would pay approximately $470/month in Great Falls vs $461/month in Sioux Falls. 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 90 in Great Falls and 94 in Sioux Falls. Monthly utility bills average approximately $360 in Great Falls vs $376 in Sioux Falls. Utility costs are relatively comparable between these two cities.

Healthcare

Healthcare costs index at 92 in Great Falls and 101 in Sioux Falls. This encompasses insurance premiums, doctor visit copays, dental care, and prescription costs. The 9-point gap reflects real differences in provider costs, insurance market competition, and regional healthcare infrastructure.

Income & Purchasing Power

Median household income is $55,800 in Great Falls and $61,714 in Sioux Falls. After adjusting for local costs, purchasing-power-equivalent incomes are approximately $63,409 and $66,359 respectively. Sioux Falls residents come out ahead in real purchasing power.

Relocation Considerations

Under the standard 28% rule, a median-income household can allocate $1,302/month to housing in Great Falls vs $1,440/month in Sioux Falls. In Great Falls, median rent of $1,050/mo fits within this budget. In Sioux Falls, median rent of $1,100/mo remains manageable. The biggest category-level difference between these two cities is Healthcare, where the gap is 9 index points — focus your budget analysis there.

Frequently Asked Questions

Great Falls is 5.4% more affordable overall with an index of 88 vs 93.
A $75,000 salary in Great Falls has equivalent purchasing power to approximately $79,261 in Sioux Falls, based on the cost of living difference.
Great Falls's housing index is 82 with median homes at $325,000, while Sioux Falls's is 80 with median homes at $265,000.

Moving & Relocation Resources

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