$80K in Trenton = $64,000 in Birmingham
Your $80K salary in Trenton (COL 105) has the same purchasing power as $64,000 in Birmingham (COL 84). Birmingham is cheaper — your money goes 20% further there.
Budget breakdown — $80K in both cities
What $80K actually buys you in each city after taxes and core expenses.
| Expense | Trenton $80K | Birmingham $80K (same salary) |
|---|---|---|
| Monthly take-home | $4,457 | $4,723 |
| 1BR rent | $1,700 | $1,200 |
| Groceries | $395 | $357 |
| Transport | $80 | $40 |
| Utilities | $215 | $175 |
| Internet | $68 | $58 |
| Left after essentials | $1,999/month | $2,893/month |
Frequently asked questions
What is $80K in Trenton equivalent to in Birmingham?
$80K in Trenton (COL index 105) has the same purchasing power as $64,000 in Birmingham (COL index 84). That's 20% less than your current salary.
If I move from Trenton to Birmingham keeping my $80K salary, will I be better off?
Yes. If you keep earning $80K after moving to Birmingham, you'd have $894 more per month after core expenses — because Birmingham is cheaper than Trenton.
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: $80K × (84 ÷ 105) = $64,000. This adjusts for differences in housing, food, transport, and general cost of living.
Other salary amounts — Trenton to Birmingham
Equivalency uses overall COL index ratio. Take-home uses simplified federal/state brackets. Zillow · BLS · Numbeo · Q1 2026 · For general guidance only