Quick answer
St. Louis costs $795/month less overall ($1,580 vs $2,375/mo). But Boulder's 4.4% state income tax erases some of that gap — on an $80K salary, the tax difference is $440/year.
City Comparison · 2026
Boulder vs St. Louis
Side-by-side on rent, home prices, taxes, walkability, jobs, and climate — with a straight verdict for each type of mover.
Last updated: April 23, 2026
Boulder vs St. Louis at a Glance
| Metric | Boulder | St. Louis |
|---|---|---|
| 1BR Monthly Rent | $1,850 | $1,380 ✓ |
| 2BR Monthly Rent | $2,400 | $1,380 ✓ |
| Median Home Price | $1200K | $215K ✓ |
| Avg Utilities/mo | $145 ✓ | $145 |
| Avg Groceries/mo | $380 | $335 ✓ |
| Monthly Cost (1BR) | $2,375 | $1,580 ✓ |
| Walk Score | 74/100 ✓ | 52/100 |
| Transit Score | 42/100 ✓ | 38/100 |
| State Income Tax | 4.4% ✓ | Up to 4.95% |
Monthly cost = 1BR rent + utilities + groceries for one person. ✓ marks the lower/better value.
Cost of Living: What the Numbers Actually Mean
Rent gap: St. Louis's 1BR averages $1,100/month vs $1,850 in Boulder — a $750/month difference, or $9,000/year. That's a meaningful gap worth factoring into your decision.
State tax: Boulder charges 4.4% state income tax vs Up to 4.95% in St. Louis. On an $80K salary that's a $440/year difference. On $120K, the gap grows to $5,940 vs $5,280 — important context if you're choosing between tech job offers.
Home buying: Median homes in St. Louis are $215K vs $1200K in Boulder. At a 20% down payment, that's a $197,000 difference in upfront cash — significant at early-career savings rates.
Utilities: Utilities are essentially equal between both cities at $145/month.
Walkability, Transit & Daily Life
Boulder, CO
Boulder's walkability means you can genuinely live without a car in the right neighborhoods.
TOP NEIGHBORHOODS
St. Louis, MO
St. Louis is partially walkable in denser neighborhoods but car-dependent in most areas.
TOP NEIGHBORHOODS
Climate
Boulder
High altitude (5,430 ft) with 300+ sunny days yearly. Winters are mild for the elevation with moderate snow; summers are cool and dry.
St. Louis
Four seasons; hot humid summers, cold winters with ice storms, severe thunderstorm season
Job Market
Boulder top industries
St. Louis top industries
Who Should Pick Which City
Move to Boulder if…
- →You're a Tech workers
- →You're a Outdoor enthusiasts
- →You're a Scientists & researchers
- →You're a Remote workers seeking active communities
- →You want to live without a car
Move to St. Louis if…
- →You're a healthcare workers
- →You're a remote workers
- →You're a value-seekers
- →You're a manufacturing professionals
- →You're buying a home and want more for your money
Frequently Asked Questions
Is Boulder or St. Louis cheaper to live in?
St. Louis is cheaper overall. Monthly costs (1BR rent + utilities + groceries) run $1,580 in St. Louis vs $2,375 in Boulder — a $795/month difference.
Which city is more walkable — Boulder or St. Louis?
Boulder is more walkable with a Walk Score of 74/100 vs 52/100. St. Louis is more car-dependent.
Boulder vs St. Louis: which has lower state income tax?
Boulder has lower state income tax (4.4%). On an $80K salary, that saves $440/year vs St. Louis (Up to 4.95%).
Is Boulder or St. Louis better for buying a home?
St. Louis has lower median home prices at $215K vs $1200K in Boulder — a $985,000 difference on the median home.