Moving from Philadelphia to Idaho Falls (2026)
Idaho Falls has a COL index of 87 vs 107 for Philadelphia (100 = US average). You'd pay about 19% less for the same lifestyle.
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Key differences
Salary needed in Idaho Falls to match your Philadelphia lifestyle
Based on the 19% cost of living decrease between the two cities.
| Your salary in Philadelphia | Equivalent in Idaho Falls |
|---|---|
| $40K | $32,523 |
| $50K | $40,654 |
| $60K | $48,785 |
| $75K | $60,981 |
| $80K | $65,047 |
| $100K | $81,308 |
| $120K | $97,570 |
| $150K | $121,963 |
💵 Household income (before tax)
Monthly budget at $75K — Philadelphia vs Idaho Falls
| Expense | Philadelphia | Idaho Falls |
|---|---|---|
| Monthly take-home | $4,547 | $4,378 |
| 1BR rent | $2,000 | $1,100 |
| Groceries | $391 | $365 |
| Transport | $96 | $35 |
| Utilities | $160 | $142 |
| Internet | $65 | $65 |
| Left after essentials | $1,835 | $2,671 |
30-Year Wealth Builder
If you invest your monthly savings of $1,005 in a low-cost index fund (7% avg return), you'd accumulate an extra:
over 30 years compared to staying in Philadelphia — that's the real price of a city.
Frequently asked questions
Is Idaho Falls cheaper than Philadelphia?
Yes. Idaho Falls has a cost of living index of 87 vs 107 for Philadelphia (100 = US average). That's about 19% cheaper.
How much will I save moving from Philadelphia to Idaho Falls?
On a $75K salary, moving from Philadelphia to Idaho Falls saves roughly $731/month on core expenses. That's ~$8,772/year.
What salary do I need in Idaho Falls to match my Philadelphia lifestyle?
To maintain the same purchasing power as $75,000 in Philadelphia, you'd need roughly $60,981/year in Idaho Falls. 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