Moving from Bismarck to Idaho Falls (2026)

Idaho Falls has a COL index of 87 vs 87 for Bismarck (100 = US average). Expect to pay about 0% more for the same lifestyle.

Pay ~$71 more/mo
on core expenses · $75K salary baseline

Key differences

COL index
8787
100 = US avg
1BR rent
$1,150$1,100
per month
State tax
2.5%5.8%
income tax
Take-home at $75K
$4,584$4,378
per month

Salary needed in Idaho Falls to match your Bismarck lifestyle

Based on the 0% cost of living increase between the two cities.

Your salary in BismarckEquivalent in Idaho Falls
$40K$40,000
$50K$50,000
$60K$60,000
$75K$75,000
$80K$80,000
$100K$100,000
$120K$120,000
$150K$150,000

Monthly budget at $75K — Bismarck vs Idaho Falls

ExpenseBismarckIdaho Falls
Monthly take-home$4,584$4,378
1BR rent$1,150$1,100
Groceries$369$365
Transport$42$35
Utilities$152$142
Internet$65$65
Left after essentials$2,806$2,671

Frequently asked questions

Is Idaho Falls cheaper than Bismarck?

No. Idaho Falls has a cost of living index of 87 vs 87 for Bismarck (100 = US average). That's about 0% more expensive.

How much will I save moving from Bismarck to Idaho Falls?

On a $75K salary, moving from Bismarck to Idaho Falls could save roughly $71/month on core expenses. That's ~$852/year.

What salary do I need in Idaho Falls to match my Bismarck lifestyle?

To maintain the same purchasing power as $75,000 in Bismarck, you'd need roughly $75,000/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