$100K in Idaho Falls = $88,506 in Flint
Your $100K salary in Idaho Falls (COL 87) has the same purchasing power as $88,506 in Flint (COL 77). Flint is cheaper — your money goes 11% further there.
Budget breakdown — $100K in both cities
What $100K actually buys you in each city after taxes and core expenses.
| Expense | Idaho Falls $100K | Flint $100K (same salary) |
|---|---|---|
| Monthly take-home | $5,838 | $5,979 |
| 1BR rent | $1,100 | $880 |
| Groceries | $365 | $346 |
| Transport | $35 | $48 |
| Utilities | $142 | $168 |
| Internet | $65 | $55 |
| Left after essentials | $4,131/month | $4,482/month |
Frequently asked questions
What is $100K in Idaho Falls equivalent to in Flint?
$100K in Idaho Falls (COL index 87) has the same purchasing power as $88,506 in Flint (COL index 77). That's 11% less than your current salary.
If I move from Idaho Falls to Flint keeping my $100K salary, will I be better off?
Yes. If you keep earning $100K after moving to Flint, you'd have $351 more per month after core expenses — because Flint 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: $100K × (77 ÷ 87) = $88,506. This adjusts for differences in housing, food, transport, and general cost of living.
Other salary amounts — Idaho Falls to Flint
Equivalency uses overall COL index ratio. Take-home uses simplified federal/state brackets. Zillow · BLS · Numbeo · Q1 2026 · For general guidance only