$120K in Idaho Falls = $117,241 in Lansing
Your $120K salary in Idaho Falls (COL 87) has the same purchasing power as $117,241 in Lansing (COL 85). Lansing is cheaper — your money goes 2% further there.
Budget breakdown — $120K in both cities
What $120K actually buys you in each city after taxes and core expenses.
| Expense | Idaho Falls $120K | Lansing $120K (same salary) |
|---|---|---|
| Monthly take-home | $6,575 | $6,745 |
| 1BR rent | $1,100 | $1,200 |
| Groceries | $365 | $361 |
| Transport | $35 | $55 |
| Utilities | $142 | $158 |
| Internet | $65 | $60 |
| Left after essentials | $4,868/month | $4,911/month |
Frequently asked questions
What is $120K in Idaho Falls equivalent to in Lansing?
$120K in Idaho Falls (COL index 87) has the same purchasing power as $117,241 in Lansing (COL index 85). That's 2% less than your current salary.
If I move from Idaho Falls to Lansing keeping my $120K salary, will I be better off?
Yes. If you keep earning $120K after moving to Lansing, you'd have $43 more per month after core expenses — because Lansing is cheaper than Idaho Falls.
How is the salary equivalent calculated?
The equivalent salary is calculated by multiplying your current salary by the ratio of the two cities' overall cost of living indices: $120K × (85 ÷ 87) = $117,241. This adjusts for differences in housing, food, transport, and general cost of living.
Other salary amounts — Idaho Falls to Lansing
Equivalency uses overall COL index ratio. Take-home uses simplified federal/state brackets. Zillow · BLS · Numbeo · Q1 2026 · For general guidance only