Can I Afford to Live in Seoul vs Boulder on $120K?
Here's how a $120K/year salary plays out in both cities after taxes, rent, and core living expenses — based on Q1 2026 data.
Monthly budget breakdown
| Expense | Seoul KR | Boulder CO |
|---|---|---|
| Monthly take-home (est.) | $5,655 | $6,715 |
| 1BR rent | $900 | $2,300 |
| Groceries (est.) | $380 | $414 |
| Transport (est.) | $150 | $80 |
| Utilities | $80 | $138 |
| Internet | $25 | $68 |
| Left after essentials | $4,120/month | $3,715/month |
Frequently asked questions
Is $120K a good salary in Seoul?
At $120K/year in Seoul, your estimated monthly take-home is $5,655. With 1BR rent around $900/month, rent takes up 16% of your take-home. That's considered very comfortable.
Is $120K a good salary in Boulder?
At $120K/year in Boulder, your estimated monthly take-home is $6,715. With 1BR rent around $2,300/month, rent takes up 34% of your take-home. That's considered manageable.
Which city is more affordable on a $120K salary?
Seoul leaves you with more money after core expenses — $4,120/month vs $3,715/month in Boulder.
Can I afford to live alone in Seoul on $120K?
Yes. At $120K in Seoul, rent takes 16% of your take-home, leaving $4,120/month after essentials. Most financial planners recommend keeping rent below 30%.
See the full cost-of-living comparison
Rent, groceries, taxes, transportation, and more — side by side.
Take-home estimates use simplified federal/state brackets and do not account for pre-tax deductions, 401(k), or local taxes. Data: Zillow, BLS, Numbeo · Q1 2026 · For general guidance only