$100K in Columbia = $95,455 in Birmingham
Your $100K salary in Columbia (COL 88) has the same purchasing power as $95,455 in Birmingham (COL 84). Birmingham is cheaper — your money goes 5% further there.
Budget breakdown — $100K in both cities
What $100K actually buys you in each city after taxes and core expenses.
| Expense | Columbia $100K | Birmingham $100K (same salary) |
|---|---|---|
| Monthly take-home | $5,929 | $5,904 |
| 1BR rent | $1,250 | $1,200 |
| Groceries | $365 | $357 |
| Transport | $45 | $40 |
| Utilities | $158 | $175 |
| Internet | $60 | $58 |
| Left after essentials | $4,051/month | $4,074/month |
Frequently asked questions
What is $100K in Columbia equivalent to in Birmingham?
$100K in Columbia (COL index 88) has the same purchasing power as $95,455 in Birmingham (COL index 84). That's 5% less than your current salary.
If I move from Columbia to Birmingham keeping my $100K salary, will I be better off?
Yes. If you keep earning $100K after moving to Birmingham, you'd have $23 more per month after core expenses — because Birmingham is cheaper than Columbia.
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 × (84 ÷ 88) = $95,455. This adjusts for differences in housing, food, transport, and general cost of living.
Other salary amounts — Columbia to Birmingham
Equivalency uses overall COL index ratio. Take-home uses simplified federal/state brackets. Zillow · BLS · Numbeo · Q1 2026 · For general guidance only