Can I Afford to Live in San Francisco vs Naperville 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 | San Francisco CA | Naperville IL |
|---|---|---|
| Monthly take-home (est.) | $6,225 | $6,655 |
| 1BR rent | $3,600 | $1,650 |
| Groceries (est.) | $448 | $380 |
| Transport (est.) | $100 | $72 |
| Utilities | $160 | $158 |
| Internet | $70 | $62 |
| Left after essentials | $1,847/month | $4,333/month |
Frequently asked questions
Is $120K a good salary in San Francisco?
At $120K/year in San Francisco, your estimated monthly take-home is $6,225. With 1BR rent around $3,600/month, rent takes up 58% of your take-home. That's considered difficult.
Is $120K a good salary in Naperville?
At $120K/year in Naperville, your estimated monthly take-home is $6,655. With 1BR rent around $1,650/month, rent takes up 25% of your take-home. That's considered comfortable.
Which city is more affordable on a $120K salary?
Naperville leaves you with more money after core expenses — $4,333/month vs $1,847/month in San Francisco.
Can I afford to live alone in San Francisco on $120K?
It's tight. Rent in San Francisco would take 58% of your $120K take-home pay. You may need to find roommates or look at studios to stay within the 30% rule.
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