Seattle vs St. Louis Cost of Living Comparison — Salary, Rent & Expenses
To keep the same standard of living as $100,000 in Seattle, you'd need about $85,600 in St. Louis — a $14,400 saving per year.
Monthly Cost Breakdown
Estimated monthly spending for a middle-income household, adjusted by each metro's BEA price level.
Equivalent Salary: Seattle → St. Louis
The salary you'd need in St. Louis to maintain the same purchasing power as each income level in Seattle, using the BEA price ratio of 0.856.
| Salary in Seattle | Equivalent in St. Louis | Difference |
|---|---|---|
| $50,000 | $42,800 | −$7,200 |
| $75,000 | $64,200 | −$10,800 |
| $100,000 | $85,600 | −$14,400 |
| $150,000 | $128,400 | −$21,600 |
| $200,000 | $171,200 | −$28,800 |
Seattle vs St. Louis: What the Numbers Mean
Moving from Seattle, WA to St. Louis, MO means your everyday costs are cheaper by roughly 14.4%. The U.S. Bureau of Economic Analysis measures Seattle's overall price level at 111.1 and St. Louis's at 95.1, where 100 represents the national average. In practical terms, a household spending $5,703 per month in Seattle would spend about $4,834 for the equivalent lifestyle in St. Louis — a swing of $869 every month, or $10,428 per year.
Housing is the decisive factor. Estimated monthly housing runs $2,520 in Seattle against $1,915 in St. Louis. Because rent and mortgage costs vary far more between metros than groceries or utilities, the housing line alone accounts for most of the 14.4% gap.
For salary negotiation or a remote-work relocation, the key number is the equivalent salary. A $100,000 income in Seattle has the same purchasing power as $85,600 in St. Louis. Looked at the other way, $100,000 in St. Louis is worth about $116,800 in Seattle terms. Use the Cost of Living Calculator to plug in your own expenses.
Cost of living compares prices across places at one point in time. The related question — how prices in one place have changed over time — is answered by inflation. To see what an income or price from an earlier decade is worth in today's money, see what old money is worth today, which converts any amount from 1913 onward using Consumer Price Index data.
Don't forget state taxes
Price levels don't include income tax, which can significantly swing your real take-home pay — especially between WA and MO.
Related Comparisons
Frequently Asked Questions
Is St. Louis more expensive than Seattle?
St. Louis is 14.4% cheaper than Seattle overall. Based on the U.S. Bureau of Economic Analysis Regional Price Parities (2024), Seattle has a price level of 111.1 versus 95.1 for St. Louis, where 100 equals the national average.
What salary do I need in St. Louis to match $100,000 in Seattle?
To maintain the same purchasing power as a $100,000 salary in Seattle, you would need about $85,600 in St. Louis — a difference of $14,400 per year.
Which costs more, housing in Seattle or St. Louis?
Estimated monthly housing runs about $2,520 in Seattle versus $1,915 in St. Louis. Housing is the single biggest driver of the cost-of-living gap between the two metros.
Sources & methodology
Price levels use the U.S. Bureau of Economic Analysis Regional Price Parities for metropolitan areas (2024, released February 2026). Seattle maps to the Seattle-Tacoma-Bellevue, WA MSA; St. Louis maps to the St. Louis, MO-IL MSA. Category spending baselines come from the U.S. Bureau of Labor Statistics Consumer Expenditure Survey. Category-level figures are modeled estimates and are illustrative; actual costs vary by household. This is a planning tool, not financial advice.