$80K in Charleston = $72,577 in Sioux Falls
Your $80K salary in Charleston (COL 97) has the same purchasing power as $72,577 in Sioux Falls (COL 88). Sioux Falls is cheaper — your money goes 9% further there.
Budget breakdown — $80K in both cities
What $80K actually buys you in each city after taxes and core expenses.
| Expense | Charleston $80K | Sioux Falls $80K (same salary) |
|---|---|---|
| Monthly take-home | $4,643 | $5,057 |
| 1BR rent | $1,900 | $1,250 |
| Groceries | $376 | $365 |
| Transport | $55 | $42 |
| Utilities | $162 | $155 |
| Internet | $63 | $60 |
| Left after essentials | $2,087/month | $3,185/month |
Frequently asked questions
What is $80K in Charleston equivalent to in Sioux Falls?
$80K in Charleston (COL index 97) has the same purchasing power as $72,577 in Sioux Falls (COL index 88). That's 9% less than your current salary.
If I move from Charleston to Sioux Falls keeping my $80K salary, will I be better off?
Yes. If you keep earning $80K after moving to Sioux Falls, you'd have $1,098 more per month after core expenses — because Sioux Falls is cheaper than Charleston.
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 × (88 ÷ 97) = $72,577. This adjusts for differences in housing, food, transport, and general cost of living.
Other salary amounts — Charleston to Sioux Falls
Equivalency uses overall COL index ratio. Take-home uses simplified federal/state brackets. Zillow · BLS · Numbeo · Q1 2026 · For general guidance only