Overall
Diff -0.5 RPP
Cost of living comparison based on BEA Regional Price Parities. St. Louis is 0.5% less expensive than Yakima.
St. Louis, MO-IL is 0.5% less expensive than Yakima, WA on BEA Regional Price Parities (overall RPP 95.1 vs 95.5). A $100,000 salary in Yakima buys about the same as $99,522 in St. Louis; the largest component gap is services.
RPP parity plate
Pair WA:MO 95.5→95.1
PHOTO-FINISH · CROSS-STATE · SPLIT-BUDGET · BOTH-BELOW · PP-PAR
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.
Yakima, WA and St. Louis, MO-IL are a photo finish on overall price level, only 0.5 RPP points apart. A salary conversion is therefore a fine adjustment, not evidence of a fundamentally different cost regime.
Services creates the largest separation: St. Louis is 22.0 points lower. But rents move against the overall direction, so this is a split budget rather than a clean across-the-board winner.
Comparable population context is incomplete for this pair, so no market-scale explanation is inferred from the price indexes.
Both metros remain below the U.S. benchmark of 100. This comparison chooses between two below-average price levels; “more expensive” here does not mean nationally expensive.
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 Yakima to $99,522 in St. Louis, but it is not a personal spending weight.
Diff -0.5 RPP
Diff -5.0 RPP
Diff -22.0 RPP
Diff +6.4 RPP
| Category | Yakima | St. Louis | Difference |
|---|---|---|---|
| Overall | 95.5 | 95.1 | -0.5 |
| Goods | 105.0 | 100.0 | -5.0 |
| Services | 91.9 | 69.9 | -22.0 |
| Rents | 72.6 | 79.0 | +6.4 |
Vertical line = national average (100)
What a salary in Yakima would need to be in St. Louis for the same purchasing power:
| In Yakima | In St. Louis | Difference |
|---|---|---|
| $50,000 | $49,761 | $-239 |
| $75,000 | $74,641 | $-359 |
| $100,000 | $99,522 | $-478 |
| $150,000 | $149,283 | $-717 |
Same BEA Regional Price Parity ratio as the table above (95.5 → 95.1), computed live from your number, nothing is sent anywhere.
St. Louis is 0.5% less expensive than Yakima. The overall cost index is 95.1 vs 95.5 (national average = 100).
A $100,000 salary in Yakima has the same purchasing power as $99,522 in St. Louis. This is based on the BEA Regional Price Parity indexes.
Rents in Yakima are indexed at 72.6 while St. Louis is at 79.0 (national average = 100). St. Louis has higher rents.
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.