Moving from Charleston to Idaho Falls (2026)
Idaho Falls has a COL index of 87 vs 97 for Charleston (100 = US average). You'd pay about 10% less for the same lifestyle.
Key differences
Salary needed in Idaho Falls to match your Charleston lifestyle
Based on the 10% cost of living decrease between the two cities.
| Your salary in Charleston | Equivalent in Idaho Falls |
|---|---|
| $40K | $35,876 |
| $50K | $44,845 |
| $60K | $53,814 |
| $75K | $67,268 |
| $80K | $71,753 |
| $100K | $89,691 |
| $120K | $107,629 |
| $150K | $134,536 |
Monthly budget at $75K — Charleston vs Idaho Falls
| Expense | Charleston | Idaho Falls |
|---|---|---|
| Monthly take-home | $4,353 | $4,378 |
| 1BR rent | $1,900 | $1,100 |
| Groceries | $376 | $365 |
| Transport | $55 | $35 |
| Utilities | $162 | $142 |
| Internet | $63 | $65 |
| Left after essentials | $1,797 | $2,671 |
Frequently asked questions
Is Idaho Falls cheaper than Charleston?
Yes. Idaho Falls has a cost of living index of 87 vs 97 for Charleston (100 = US average). That's about 10% cheaper.
How much will I save moving from Charleston to Idaho Falls?
On a $75K salary, moving from Charleston to Idaho Falls could save roughly $849/month on core expenses. That's ~$10,188/year.
What salary do I need in Idaho Falls to match my Charleston lifestyle?
To maintain the same purchasing power as $75,000 in Charleston, you'd need roughly $67,268/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