$120K in Seattle = $84,000 in Trenton
Your $120K salary in Seattle (COL 150) has the same purchasing power as $84,000 in Trenton (COL 105). Trenton is cheaper — your money goes 30% further there.
Budget breakdown — $120K in both cities
What $120K actually buys you in each city after taxes and core expenses.
| Expense | Seattle $120K | Trenton $120K (same salary) |
|---|---|---|
| Monthly take-home | $7,155 | $6,255 |
| 1BR rent | $2,400 | $1,700 |
| Groceries | $410 | $395 |
| Transport | $100 | $80 |
| Utilities | $120 | $215 |
| Internet | $65 | $68 |
| Left after essentials | $4,060/month | $3,797/month |
Frequently asked questions
What is $120K in Seattle equivalent to in Trenton?
$120K in Seattle (COL index 150) has the same purchasing power as $84,000 in Trenton (COL index 105). That's 30% less than your current salary.
If I move from Seattle to Trenton keeping my $120K salary, will I be better off?
Yes. If you keep earning $120K after moving to Trenton, you'd have $-263 more per month after core expenses — because Trenton is cheaper than Seattle.
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: $120K × (105 ÷ 150) = $84,000. This adjusts for differences in housing, food, transport, and general cost of living.
Other salary amounts — Seattle to Trenton
Equivalency uses overall COL index ratio. Take-home uses simplified federal/state brackets. Zillow · BLS · Numbeo · Q1 2026 · For general guidance only