$40K in Las Cruces = $51,220 in Boise
Your $40K salary in Las Cruces (COL 82) has the same purchasing power as $51,220 in Boise (COL 105). Boise is more expensive — you'd need 28% more to maintain the same lifestyle.
Budget breakdown — $40K in both cities
What $40K actually buys you in each city after taxes and core expenses.
| Expense | Las Cruces $40K | Boise $40K (same salary) |
|---|---|---|
| Monthly take-home | $2,565 | $2,535 |
| 1BR rent | $1,000 | $1,600 |
| Groceries | $350 | $372 |
| Transport | $38 | $45 |
| Utilities | $152 | $145 |
| Internet | $60 | $60 |
| Left after essentials | $965/month | $313/month |
Frequently asked questions
What is $40K in Las Cruces equivalent to in Boise?
$40K in Las Cruces (COL index 82) has the same purchasing power as $51,220 in Boise (COL index 105). That's 28% more than your current salary.
If I move from Las Cruces to Boise keeping my $40K salary, will I be better off?
Not necessarily. Core expenses in Boise are higher, so on the same $40K salary you'd have $652 less per month. You'd need to earn $51,220 to maintain the same standard of living.
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: $40K × (105 ÷ 82) = $51,220. This adjusts for differences in housing, food, transport, and general cost of living.
Other salary amounts — Las Cruces to Boise
Equivalency uses overall COL index ratio. Take-home uses simplified federal/state brackets. Zillow · BLS · Numbeo · Q1 2026 · For general guidance only