$40K in St. Louis = $36,322 in Jackson
Your $40K salary in St. Louis (COL 87) has the same purchasing power as $36,322 in Jackson (COL 79). Jackson is cheaper — your money goes 9% further there.
Budget breakdown — $40K in both cities
What $40K actually buys you in each city after taxes and core expenses.
| Expense | St. Louis $40K | Jackson $40K (same salary) |
|---|---|---|
| Monthly take-home | $2,572 | $2,572 |
| 1BR rent | $1,300 | $1,000 |
| Groceries | $369 | $346 |
| Transport | $75 | $38 |
| Utilities | $162 | $178 |
| Internet | $60 | $55 |
| Left after essentials | $606/month | $955/month |
Frequently asked questions
What is $40K in St. Louis equivalent to in Jackson?
$40K in St. Louis (COL index 87) has the same purchasing power as $36,322 in Jackson (COL index 79). That's 9% less than your current salary.
If I move from St. Louis to Jackson keeping my $40K salary, will I be better off?
Yes. If you keep earning $40K after moving to Jackson, you'd have $349 more per month after core expenses — because Jackson is cheaper than St. Louis.
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 × (79 ÷ 87) = $36,322. This adjusts for differences in housing, food, transport, and general cost of living.
Other salary amounts — St. Louis to Jackson
Equivalency uses overall COL index ratio. Take-home uses simplified federal/state brackets. Zillow · BLS · Numbeo · Q1 2026 · For general guidance only