Moving from Boulder to Idaho Falls (2026)
Idaho Falls has a COL index of 87 vs 132 for Boulder (100 = US average). You'd pay about 34% less for the same lifestyle.
Key differences
Salary needed in Idaho Falls to match your Boulder lifestyle
Based on the 34% cost of living decrease between the two cities.
| Your salary in Boulder | Equivalent in Idaho Falls |
|---|---|
| $40K | $26,364 |
| $50K | $32,955 |
| $60K | $39,545 |
| $75K | $49,432 |
| $80K | $52,727 |
| $100K | $65,909 |
| $120K | $79,091 |
| $150K | $98,864 |
Monthly budget at $75K — Boulder vs Idaho Falls
| Expense | Boulder | Idaho Falls |
|---|---|---|
| Monthly take-home | $4,466 | $4,378 |
| 1BR rent | $2,300 | $1,100 |
| Groceries | $414 | $365 |
| Transport | $80 | $35 |
| Utilities | $138 | $142 |
| Internet | $68 | $65 |
| Left after essentials | $1,466 | $2,671 |
Frequently asked questions
Is Idaho Falls cheaper than Boulder?
Yes. Idaho Falls has a cost of living index of 87 vs 132 for Boulder (100 = US average). That's about 34% cheaper.
How much will I save moving from Boulder to Idaho Falls?
On a $75K salary, moving from Boulder to Idaho Falls could save roughly $1,293/month on core expenses. That's ~$15,516/year.
What salary do I need in Idaho Falls to match my Boulder lifestyle?
To maintain the same purchasing power as $75,000 in Boulder, you'd need roughly $49,432/year in Idaho Falls. 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