Can I Afford to Live in Des Moines vs Idaho Falls on $100K?
Here's how a $100K/year salary plays out in both cities after taxes, rent, and core living expenses — based on Q1 2026 data.
Monthly budget breakdown
| Expense | Des Moines IA | Idaho Falls ID |
|---|---|---|
| Monthly take-home (est.) | $5,846 | $5,838 |
| 1BR rent | $1,200 | $1,100 |
| Groceries (est.) | $365 | $365 |
| Transport (est.) | $50 | $35 |
| Utilities | $155 | $142 |
| Internet | $60 | $65 |
| Left after essentials | $4,016/month | $4,131/month |
Frequently asked questions
Is $100K a good salary in Des Moines?
At $100K/year in Des Moines, your estimated monthly take-home is $5,846. With 1BR rent around $1,200/month, rent takes up 21% of your take-home. That's considered very comfortable.
Is $100K a good salary in Idaho Falls?
At $100K/year in Idaho Falls, your estimated monthly take-home is $5,838. With 1BR rent around $1,100/month, rent takes up 19% of your take-home. That's considered very comfortable.
Which city is more affordable on a $100K salary?
Idaho Falls leaves you with more money after core expenses — $4,131/month vs $4,016/month in Des Moines.
Can I afford to live alone in Des Moines on $100K?
Yes. At $100K in Des Moines, rent takes 21% of your take-home, leaving $4,016/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