$40K in Green Bay = $40,465 in Duluth
Your $40K salary in Green Bay (COL 86) has the same purchasing power as $40,465 in Duluth (COL 87). Duluth is more expensive — you'd need 1% 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 | Green Bay $40K | Duluth $40K (same salary) |
|---|---|---|
| Monthly take-home | $2,472 | $2,398 |
| 1BR rent | $1,250 | $1,200 |
| Groceries | $365 | $369 |
| Transport | $48 | $60 |
| Utilities | $158 | $165 |
| Internet | $60 | $62 |
| Left after essentials | $591/month | $542/month |
Frequently asked questions
What is $40K in Green Bay equivalent to in Duluth?
$40K in Green Bay (COL index 86) has the same purchasing power as $40,465 in Duluth (COL index 87). That's 1% more than your current salary.
If I move from Green Bay to Duluth keeping my $40K salary, will I be better off?
Not necessarily. Core expenses in Duluth are higher, so on the same $40K salary you'd have $49 less per month. You'd need to earn $40,465 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 × (87 ÷ 86) = $40,465. This adjusts for differences in housing, food, transport, and general cost of living.
Other salary amounts — Green Bay to Duluth
Equivalency uses overall COL index ratio. Take-home uses simplified federal/state brackets. Zillow · BLS · Numbeo · Q1 2026 · For general guidance only