Moving from Boston to Rapid City (2026)
Rapid City has a COL index of 88 vs 162 for Boston (100 = US average). You'd pay about 46% less for the same lifestyle.
Key differences
Salary needed in Rapid City to match your Boston lifestyle
Based on the 46% cost of living decrease between the two cities.
| Your salary in Boston | Equivalent in Rapid City |
|---|---|
| $40K | $21,728 |
| $50K | $27,160 |
| $60K | $32,593 |
| $75K | $40,741 |
| $80K | $43,457 |
| $100K | $54,321 |
| $120K | $65,185 |
| $150K | $81,481 |
Monthly budget at $75K — Boston vs Rapid City
| Expense | Boston | Rapid City |
|---|---|---|
| Monthly take-home | $4,428 | $4,741 |
| 1BR rent | $3,000 | $1,200 |
| Groceries | $418 | $365 |
| Transport | $90 | $40 |
| Utilities | $185 | $148 |
| Internet | $70 | $65 |
| Left after essentials | $665 | $2,923 |
Frequently asked questions
Is Rapid City cheaper than Boston?
Yes. Rapid City has a cost of living index of 88 vs 162 for Boston (100 = US average). That's about 46% cheaper.
How much will I save moving from Boston to Rapid City?
On a $75K salary, moving from Boston to Rapid City could save roughly $1,945/month on core expenses. That's ~$23,340/year.
What salary do I need in Rapid City to match my Boston lifestyle?
To maintain the same purchasing power as $75,000 in Boston, you'd need roughly $40,741/year in Rapid City. This is based on the overall COL index difference between the two cities.
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