$40K in Peoria = $42,410 in Louisville
Your $40K salary in Peoria (COL 83) has the same purchasing power as $42,410 in Louisville (COL 88). Louisville is more expensive — you'd need 6% 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 | Peoria $40K | Louisville $40K (same salary) |
|---|---|---|
| Monthly take-home | $2,562 | $2,595 |
| 1BR rent | $1,050 | $1,300 |
| Groceries | $361 | $361 |
| Transport | $55 | $60 |
| Utilities | $158 | $162 |
| Internet | $60 | $60 |
| Left after essentials | $878/month | $652/month |
Frequently asked questions
What is $40K in Peoria equivalent to in Louisville?
$40K in Peoria (COL index 83) has the same purchasing power as $42,410 in Louisville (COL index 88). That's 6% more than your current salary.
If I move from Peoria to Louisville keeping my $40K salary, will I be better off?
Not necessarily. Core expenses in Louisville are higher, so on the same $40K salary you'd have $226 less per month. You'd need to earn $42,410 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 × (88 ÷ 83) = $42,410. This adjusts for differences in housing, food, transport, and general cost of living.
Other salary amounts — Peoria to Louisville
Equivalency uses overall COL index ratio. Take-home uses simplified federal/state brackets. Zillow · BLS · Numbeo · Q1 2026 · For general guidance only