Overall
- Walla Walla
- 98.5
- Portland-South Portland
- 101.9
Diff +3.3 RPP
Cost of living comparison based on BEA Regional Price Parities. Portland-South Portland is 3.4% more expensive than Walla Walla.
Portland-South Portland, ME is 3.4% more expensive than Walla Walla, WA on BEA Regional Price Parities (overall RPP 101.9 vs 98.5). A $100,000 salary in Walla Walla buys about the same as $103,389 in Portland-South Portland; the largest component gap is services.
RPP parity plate
Pair WA:ME 98.5→101.9
TIER-NEAR · CROSS-STATE · SPLIT-BUDGET · BENCH-CROSS · PP-SHIFT
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.
Diff +3.3 RPP
Diff -7.9 RPP
Diff +40.3 RPP
Diff +18.6 RPP
| Category | Walla Walla | Portland-South Portland | Difference |
|---|---|---|---|
| Overall | 98.5 | 101.9 | +3.3 |
| Goods | 105.0 | 97.2 | -7.9 |
| Services | 94.3 | 134.6 | +40.3 |
| Rents | 86.6 | 105.2 | +18.6 |
Vertical line = national average (100)
Services creates the largest separation: Portland-South Portland is 40.3 points higher. But goods move against the overall direction, so this is a split budget rather than a clean across-the-board winner.
Portland-South Portland, ME is 3.4% more expensive than Walla Walla, WA, a meaningful but not extreme shift. The move decision turns on which budget category creates the 3.3-point overall gap.
This route crosses the national benchmark: Portland-South Portland is above 100 while Walla Walla is below it. That makes the move a change of price regime, not merely a rank swap.
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 Walla Walla to $103,389 in Portland-South Portland, but it is not a personal spending weight.
What a salary in Walla Walla would need to be in Portland-South Portland for the same purchasing power:
| In Walla Walla | In Portland-South Portland | Difference |
|---|---|---|
| $50,000 | $51,695 | +$1,695 |
| $75,000 | $77,542 | +$2,542 |
| $100,000 | $103,389 | +$3,389 |
| $150,000 | $155,084 | +$5,084 |
Same BEA Regional Price Parity ratio as the table above (98.5 → 101.9), computed live from your number, nothing is sent anywhere.
Portland-South Portland is 3.4% more expensive than Walla Walla. The overall cost index is 101.9 vs 98.5 (national average = 100).
A $100,000 salary in Walla Walla has the same purchasing power as $103,389 in Portland-South Portland. This is based on the BEA Regional Price Parity indexes.
Rents in Walla Walla are indexed at 86.6 while Portland-South Portland is at 105.2 (national average = 100). Portland-South Portland 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.