Moving from Boise to Rapid City (2026)
Rapid City has a COL index of 88 vs 105 for Boise (100 = US average). You'd pay about 16% less for the same lifestyle.
Save ~$404/mo
on core expenses · $75K salary baseline
Key differences
COL index
10588
100 = US avg
1BR rent
$1,600$1,200
per month
State tax
5.8%None
income tax
Take-home at $75K
$4,378$4,741
per month
Salary needed in Rapid City to match your Boise lifestyle
Based on the 16% cost of living decrease between the two cities.
| Your salary in Boise | Equivalent in Rapid City |
|---|---|
| $40K | $33,524 |
| $50K | $41,905 |
| $60K | $50,286 |
| $75K | $62,857 |
| $80K | $67,048 |
| $100K | $83,810 |
| $120K | $100,571 |
| $150K | $125,714 |
Monthly budget at $75K — Boise vs Rapid City
| Expense | Boise | Rapid City |
|---|---|---|
| Monthly take-home | $4,378 | $4,741 |
| 1BR rent | $1,600 | $1,200 |
| Groceries | $372 | $365 |
| Transport | $45 | $40 |
| Utilities | $145 | $148 |
| Internet | $60 | $65 |
| Left after essentials | $2,156 | $2,923 |
Frequently asked questions
Is Rapid City cheaper than Boise?
Yes. Rapid City has a cost of living index of 88 vs 105 for Boise (100 = US average). That's about 16% cheaper.
How much will I save moving from Boise to Rapid City?
On a $75K salary, moving from Boise to Rapid City could save roughly $404/month on core expenses. That's ~$4,848/year.
What salary do I need in Rapid City to match my Boise lifestyle?
To maintain the same purchasing power as $75,000 in Boise, you'd need roughly $62,857/year in Rapid City. This is based on the overall COL index difference between the two cities.
Moving from Rapid City to BoiseBoise vs Rapid City — full comparisonBoise cost of livingRapid City cost of living
Estimates based on Q1 2026 COL index and market data. Budget uses simplified federal/state tax rates at $75K. Zillow · BLS · Numbeo · For general guidance only