Moving from Idaho Falls to Lafayette (2026)
Lafayette has a COL index of 85 vs 87 for Idaho Falls (100 = US average). You'd pay about 2% less for the same lifestyle.
Key differences
Salary needed in Lafayette to match your Idaho Falls lifestyle
Based on the 2% cost of living decrease between the two cities.
| Your salary in Idaho Falls | Equivalent in Lafayette |
|---|---|
| $40K | $39,080 |
| $50K | $48,851 |
| $60K | $58,621 |
| $75K | $73,276 |
| $80K | $78,161 |
| $100K | $97,701 |
| $120K | $117,241 |
| $150K | $146,552 |
Monthly budget at $75K — Idaho Falls vs Lafayette
| Expense | Idaho Falls | Lafayette |
|---|---|---|
| Monthly take-home | $4,378 | $4,472 |
| 1BR rent | $1,100 | $1,100 |
| Groceries | $365 | $361 |
| Transport | $35 | $42 |
| Utilities | $142 | $208 |
| Internet | $65 | $58 |
| Left after essentials | $2,671 | $2,703 |
Frequently asked questions
Is Lafayette cheaper than Idaho Falls?
Yes. Lafayette has a cost of living index of 85 vs 87 for Idaho Falls (100 = US average). That's about 2% cheaper.
How much will I save moving from Idaho Falls to Lafayette?
On a $75K salary, core expenses in Lafayette run about $62/month more than Idaho Falls. Factor this into your salary negotiation when relocating.
What salary do I need in Lafayette to match my Idaho Falls lifestyle?
To maintain the same purchasing power as $75,000 in Idaho Falls, you'd need roughly $73,276/year in Lafayette. 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