Moving from Montgomery to Rapid City (2026)
Rapid City has a COL index of 88 vs 81 for Montgomery (100 = US average). Expect to pay about 9% more for the same lifestyle.
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Key differences
Salary needed in Rapid City to match your Montgomery lifestyle
Based on the 9% cost of living increase between the two cities.
| Your salary in Montgomery | Equivalent in Rapid City |
|---|---|
| $40K | $43,457 |
| $50K | $54,321 |
| $60K | $65,185 |
| $75K | $81,481 |
| $80K | $86,914 |
| $100K | $108,642 |
| $120K | $130,370 |
| $150K | $162,963 |
💵 Household income (before tax)
Monthly budget at $75K — Montgomery vs Rapid City
| Expense | Montgomery | Rapid City |
|---|---|---|
| Monthly take-home | $4,428 | $4,741 |
| 1BR rent | $1,050 | $1,200 |
| Groceries | $353 | $365 |
| Transport | $38 | $40 |
| Utilities | $170 | $148 |
| Internet | $58 | $65 |
| Left after essentials | $2,759 | $2,923 |
Frequently asked questions
Is Rapid City cheaper than Montgomery?
No. Rapid City has a cost of living index of 88 vs 81 for Montgomery (100 = US average). That's about 9% more expensive.
How much will I save moving from Montgomery to Rapid City?
On a $75K salary, moving from Montgomery to Rapid City saves roughly $163/month on core expenses. That's ~$1,956/year.
What salary do I need in Rapid City to match my Montgomery lifestyle?
To maintain the same purchasing power as $75,000 in Montgomery, you'd need roughly $81,481/year in Rapid City. This is based on the overall COL index difference.
Estimates based on Q1 2026 COL index and market data. Budget uses simplified federal/state tax rates. Zillow · BLS · Numbeo · For general guidance only