$100K in Henderson = $87,000 in Idaho Falls
Your $100K salary in Henderson (COL 100) has the same purchasing power as $87,000 in Idaho Falls (COL 87). Idaho Falls is cheaper — your money goes 13% further there.
Budget breakdown — $100K in both cities
What $100K actually buys you in each city after taxes and core expenses.
| Expense | Henderson $100K | Idaho Falls $100K (same salary) |
|---|---|---|
| Monthly take-home | $6,321 | $5,838 |
| 1BR rent | $1,600 | $1,100 |
| Groceries | $380 | $365 |
| Transport | $55 | $35 |
| Utilities | $168 | $142 |
| Internet | $65 | $65 |
| Left after essentials | $4,053/month | $4,131/month |
Frequently asked questions
What is $100K in Henderson equivalent to in Idaho Falls?
$100K in Henderson (COL index 100) has the same purchasing power as $87,000 in Idaho Falls (COL index 87). That's 13% less than your current salary.
If I move from Henderson to Idaho Falls keeping my $100K salary, will I be better off?
Yes. If you keep earning $100K after moving to Idaho Falls, you'd have $78 more per month after core expenses — because Idaho Falls is cheaper than Henderson.
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 × (87 ÷ 100) = $87,000. This adjusts for differences in housing, food, transport, and general cost of living.
Other salary amounts — Henderson to Idaho Falls
Equivalency uses overall COL index ratio. Take-home uses simplified federal/state brackets. Zillow · BLS · Numbeo · Q1 2026 · For general guidance only