$100K in Boise = $87,619 in Allentown
Your $100K salary in Boise (COL 105) has the same purchasing power as $87,619 in Allentown (COL 92). Allentown is cheaper — your money goes 12% further there.
Budget breakdown — $100K in both cities
What $100K actually buys you in each city after taxes and core expenses.
| Expense | Boise $100K | Allentown $100K (same salary) |
|---|---|---|
| Monthly take-home | $5,838 | $6,063 |
| 1BR rent | $1,600 | $1,400 |
| Groceries | $372 | $380 |
| Transport | $45 | $72 |
| Utilities | $145 | $172 |
| Internet | $60 | $63 |
| Left after essentials | $3,616/month | $3,976/month |
Frequently asked questions
What is $100K in Boise equivalent to in Allentown?
$100K in Boise (COL index 105) has the same purchasing power as $87,619 in Allentown (COL index 92). That's 12% less than your current salary.
If I move from Boise to Allentown keeping my $100K salary, will I be better off?
Yes. If you keep earning $100K after moving to Allentown, you'd have $360 more per month after core expenses — because Allentown is cheaper than Boise.
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 × (92 ÷ 105) = $87,619. This adjusts for differences in housing, food, transport, and general cost of living.
Other salary amounts — Boise to Allentown
Equivalency uses overall COL index ratio. Take-home uses simplified federal/state brackets. Zillow · BLS · Numbeo · Q1 2026 · For general guidance only