Overall
- St. Louis
- 95.1
Diff +16.8 RPP
St. Louis vs San Diego-Chula Vista-Carlsbad
Cost of living comparison based on BEA Regional Price Parities. San Diego-Chula Vista-Carlsbad is 17.7% more expensive than St. Louis.
17.7% more expensive
San Diego-Chula Vista-Carlsbad, CA is 17.7% more expensive than St. Louis, MO-IL on BEA Regional Price Parities (overall RPP 111.9 vs 95.1). A $100,000 salary in St. Louis buys about the same as $117,667 in San Diego-Chula Vista-Carlsbad; the largest component gap is services.
- Overall RPP 95.1 (St. Louis) vs 111.9 (San Diego-Chula Vista-Carlsbad)
- $100k in St. Louis ≈ $117,667 purchasing power in San Diego-Chula Vista-Carlsbad
- Services drives the gap (+104.3 RPP points)
RPP parity plate
Pair MO:CA 95.1→111.9
TIER-GAP · CROSS-STATE · SERVICES-LED · BENCH-CROSS · PP-STEEP
- TIER-GAP Clear tier gap
- CROSS-STATE MO × CA
- SERVICES-LED Services-led gap
- BENCH-CROSS Benchmark cross
- PP-STEEP Steep PP convert
Instrument codes from this pair's BEA Regional Price Parities (overall · goods · services · rents · national benchmark 100 · purchasing-power conversion), not a ranking or recommendation.
What This Comparison Actually Tells You
St. Louis, MO-IL and San Diego-Chula Vista-Carlsbad, CA sit in clearly different price tiers, separated by 16.8 RPP points. At this distance, treating the same nominal salary as equivalent would materially change purchasing power.
This route crosses the national benchmark: San Diego-Chula Vista-Carlsbad is above 100 while St. Louis is below it. That makes the move a change of price regime, not merely a rank swap.
Services leads the difference, with San Diego-Chula Vista-Carlsbad 104.3 points higher than St. Louis. Goods, services, and rents all point in the same broad direction, making the headline comparison more transferable across household types.
Comparable population context is incomplete for this pair, so no market-scale explanation is inferred from the price indexes.
For a service-heavy household, test childcare, health, and other locally supplied costs before relying on rent alone. The BEA ratio converts $100,000 in St. Louis to $117,667 in San Diego-Chula Vista-Carlsbad, but it is not a personal spending weight.
Category Breakdown
Goods
- St. Louis
- 100.0
Diff +8.0 RPP
Services
- St. Louis
- 69.9
Diff +104.3 RPP
Rents
- St. Louis
- 79.0
Diff +100.2 RPP
| Category | St. Louis | San Diego-Chula Vista-Carlsbad | Difference |
|---|---|---|---|
| Overall | 95.1 | 111.9 | +16.8 |
| Goods | 100.0 | 108.0 | +8.0 |
| Services | 69.9 | 174.2 | +104.3 |
| Rents | 79.0 | 179.3 | +100.2 |
Visual Comparison
Overall
St. Louis 95.1
San Diego-Chula Vista-Carlsbad 111.9
Goods
St. Louis 100.0
San Diego-Chula Vista-Carlsbad 108.0
Services
St. Louis 69.9
San Diego-Chula Vista-Carlsbad 174.2
Rents
St. Louis 79.0
San Diego-Chula Vista-Carlsbad 179.3
Vertical line = national average (100)
Salary Equivalents
What a salary in St. Louis would need to be in San Diego-Chula Vista-Carlsbad for the same purchasing power:
| In St. Louis | In San Diego-Chula Vista-Carlsbad | Difference |
|---|---|---|
| $50,000 | $58,833 | +$8,833 |
| $75,000 | $88,250 | +$13,250 |
| $100,000 | $117,667 | +$17,667 |
| $150,000 | $176,500 | +$26,500 |
$ in St. Louis = in San Diego-Chula Vista-Carlsbad
Same BEA Regional Price Parity ratio as the table above (95.1 → 111.9), computed live from your number, nothing is sent anywhere.
St. Louis
95.1
Cost Index
San Diego-Chula Vista-Carlsbad
111.9
Cost Index
Frequently Asked Questions
Is San Diego-Chula Vista-Carlsbad more expensive than St. Louis?
San Diego-Chula Vista-Carlsbad is 17.7% more expensive than St. Louis. The overall cost index is 111.9 vs 95.1 (national average = 100).
What salary in San Diego-Chula Vista-Carlsbad equals $100K in St. Louis?
A $100,000 salary in St. Louis has the same purchasing power as $117,667 in San Diego-Chula Vista-Carlsbad. This is based on the BEA Regional Price Parity indexes.
How do rents compare between St. Louis and San Diego-Chula Vista-Carlsbad?
Rents in St. Louis are indexed at 79.0 while San Diego-Chula Vista-Carlsbad is at 179.3 (national average = 100). San Diego-Chula Vista-Carlsbad has higher rents.
Data sources
- BEA Regional Price Parities (RPP), the cost-of-living indices shown on this page
- U.S. Census Bureau, American Community Survey (ACS), gross-rent observations behind the rents component
- BLS Consumer Price Index (CPI), goods and services price relatives
- BLS Occupational Employment and Wage Statistics (OEWS), labor-driven services component
- HUD Fair Market Rents (FMR), 40th-percentile rent cross-reference
Every figure on PlainCost is rendered directly from BEA Regional Price Parity source data, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, our changelog, or report a data error. Data current as of 2026-08-11. Rankings measure the published cost-of-living index only; we don't recommend where to live or rate any metro's quality of life.