$100K in Idaho Falls = $94,253 in South Bend
Your $100K salary in Idaho Falls (COL 87) has the same purchasing power as $94,253 in South Bend (COL 82). South Bend is cheaper — your money goes 6% 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 | South Bend $100K (same salary) |
|---|---|---|
| Monthly take-home | $5,838 | $6,054 |
| 1BR rent | $1,100 | $1,050 |
| Groceries | $365 | $353 |
| Transport | $35 | $42 |
| Utilities | $142 | $155 |
| Internet | $65 | $58 |
| Left after essentials | $4,131/month | $4,396/month |
Frequently asked questions
What is $100K in Idaho Falls equivalent to in South Bend?
$100K in Idaho Falls (COL index 87) has the same purchasing power as $94,253 in South Bend (COL index 82). That's 6% less than your current salary.
If I move from Idaho Falls to South Bend keeping my $100K salary, will I be better off?
Yes. If you keep earning $100K after moving to South Bend, you'd have $265 more per month after core expenses — because South Bend 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 × (82 ÷ 87) = $94,253. This adjusts for differences in housing, food, transport, and general cost of living.
Other salary amounts — Idaho Falls to South Bend
Equivalency uses overall COL index ratio. Take-home uses simplified federal/state brackets. Zillow · BLS · Numbeo · Q1 2026 · For general guidance only