Cost of Living in St. Louis, MO
St. Louis's cost of living index is 91 — making it 9.9% more affordable than the US national average. To maintain your current standard of living here, you would need to earn $91,000 for every $100,000 of national-average income.
The St. Louis Tax & Cost Impact
St. Louis offers a balanced tax profile. While Missouri does have an income tax, it remains competitive compared to coastal hubs, especially when adjusted for local housing costs.
Decision Matrix
- ✓Housing: Housing is a value-play compared to national tiers.
- ✓Savings Rate: To save $2,000/mo here, you need a gross household income of ~$76,440.
COL Index
91
100 = national avg
Monthly Budget
$4,550
vs $5,000 national
Population
0.3M
Metro area
State Tax
Yes
Missouri
Monthly Cost Breakdown
Estimated monthly costs in St. Louis vs national average for a typical household.
| Category | National Avg | St. Louis | Difference |
|---|---|---|---|
| Housing | $1,650 | $1,427 | -$223 |
| Groceries | $650 | $603 | -$47 |
| Transportation | $800 | $735 | -$65 |
| Healthcare | $400 | $375 | -$25 |
| Utilities | $300 | $273 | -$27 |
| Other | $1,200 | $1,114 | -$86 |
| Total | $5,000 | $4,550 | -$450 |
Estimated Budget: Single vs. Family of Four
Estimates from LifeCalc's model, not surveyed prices. We treat the $5,000 national baseline as a family-of-four budget, scale each category by St. Louis's index (housing moves 1.5x as much as the index, groceries 0.8x, and so on), then apply assumed single-adult shares per category (housing 65%, groceries 30%, transportation 55%, healthcare 30%, utilities 60%, other 45%).
| Category | Single adult / mo | Family of four / mo |
|---|---|---|
| Housing | $928 | $1,427 |
| Groceries | $181 | $603 |
| Transportation | $404 | $735 |
| Healthcare | $113 | $375 |
| Utilities | $164 | $273 |
| Other | $501 | $1,114 |
| Total (estimate) | $2,291 | $4,527 |
For comparison, the same model gives about $2,548 (single) and $5,000 (family of four) at the national average. St. Louis is $473 below the family baseline each month.
Salary Needed and State Tax Context
Our dataset's median of state median household incomes is $77,871. Scaling that by St. Louis's index of 91 suggests you would need roughly $70,863 a year here to match that standard of living. This is a cost-of-living adjustment only; it does not adjust for your household or housing choices.
Missouri's top marginal income tax rate is 4.7%; on $70,863 our bracket data gives about $3,150 of state income tax for a single filer. Missouri's statewide cost index is 90 and its median household income is $71,589. See all Missouri tax brackets.
Closest cities by index
Salary Equivalent
To maintain the same standard of living in St. Louis, a national-average salary translates to:
$50,000 nationally
$45,500
$75,000 nationally
$68,250
$100,000 nationally
$91,000
$150,000 nationally
$136,500
What Your Salary Gets You in St. Louis
Here's how different salary levels translate to monthly purchasing power in St. Louis, MO, where the cost of living is 9% below the national average.
Cities With Similar Cost of Living
FAQ: Cost of Living in St. Louis
Is St. Louis expensive to live in?
St. Louis's cost of living index is 91, which is near the national average of 100. Housing is typically the biggest factor, with estimated monthly rent around $1,502.
What salary do I need to live comfortably in St. Louis?
To maintain a middle-class lifestyle in St. Louis, you'd need approximately $68,250 per year, which is equivalent to a $75,000 salary at the national average cost of living.
How does St. Louis compare to other cities?
St. Louis is comparable in cost to San Antonio, Louisville, Indianapolis.