$120K in Anchorage = $105,600 in Rapid City
Your $120K salary in Anchorage (COL 100) has the same purchasing power as $105,600 in Rapid City (COL 88). Rapid City is cheaper — your money goes 12% further there.
Budget breakdown — $120K in both cities
What $120K actually buys you in each city after taxes and core expenses.
| Expense | Anchorage $120K | Rapid City $120K (same salary) |
|---|---|---|
| Monthly take-home | $7,155 | $7,155 |
| 1BR rent | $1,800 | $1,200 |
| Groceries | $391 | $365 |
| Transport | $45 | $40 |
| Utilities | $165 | $148 |
| Internet | $90 | $65 |
| Left after essentials | $4,664/month | $5,337/month |
Frequently asked questions
What is $120K in Anchorage equivalent to in Rapid City?
$120K in Anchorage (COL index 100) has the same purchasing power as $105,600 in Rapid City (COL index 88). That's 12% less than your current salary.
If I move from Anchorage to Rapid City keeping my $120K salary, will I be better off?
Yes. If you keep earning $120K after moving to Rapid City, you'd have $673 more per month after core expenses — because Rapid City is cheaper than Anchorage.
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 × (88 ÷ 100) = $105,600. This adjusts for differences in housing, food, transport, and general cost of living.
Other salary amounts — Anchorage to Rapid City
Equivalency uses overall COL index ratio. Take-home uses simplified federal/state brackets. Zillow · BLS · Numbeo · Q1 2026 · For general guidance only