Moving from Idaho Falls to Trenton (2026)
Trenton has a COL index of 105 vs 87 for Idaho Falls (100 = US average). Expect to pay about 21% more for the same lifestyle.
Key differences
Salary needed in Trenton to match your Idaho Falls lifestyle
Based on the 21% cost of living increase between the two cities.
| Your salary in Idaho Falls | Equivalent in Trenton |
|---|---|
| $40K | $48,276 |
| $50K | $60,345 |
| $60K | $72,414 |
| $75K | $90,517 |
| $80K | $96,552 |
| $100K | $120,690 |
| $120K | $144,828 |
| $150K | $181,034 |
Monthly budget at $75K — Idaho Falls vs Trenton
| Expense | Idaho Falls | Trenton |
|---|---|---|
| Monthly take-home | $4,378 | $4,178 |
| 1BR rent | $1,100 | $1,700 |
| Groceries | $365 | $395 |
| Transport | $35 | $80 |
| Utilities | $142 | $215 |
| Internet | $65 | $68 |
| Left after essentials | $2,671 | $1,720 |
Frequently asked questions
Is Trenton cheaper than Idaho Falls?
No. Trenton has a cost of living index of 105 vs 87 for Idaho Falls (100 = US average). That's about 21% more expensive.
How much will I save moving from Idaho Falls to Trenton?
On a $75K salary, core expenses in Trenton run about $751/month more than Idaho Falls. Factor this into your salary negotiation when relocating.
What salary do I need in Trenton to match my Idaho Falls lifestyle?
To maintain the same purchasing power as $75,000 in Idaho Falls, you'd need roughly $90,517/year in Trenton. 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