Overall
- Seattle-Tacoma-Bellevue
- 111.1
- Kahului-Wailuku
- 109.4
Diff -1.7 RPP
Cost of living comparison based on BEA Regional Price Parities. Kahului-Wailuku is 1.6% less expensive than Seattle-Tacoma-Bellevue.
Kahului-Wailuku, HI is 1.6% less expensive than Seattle-Tacoma-Bellevue, WA on BEA Regional Price Parities (overall RPP 109.4 vs 111.1). A $100,000 salary in Seattle-Tacoma-Bellevue buys about the same as $98,434 in Kahului-Wailuku; the largest component gap is services.
RPP parity plate
Pair WA:HI 111.1→109.4
PHOTO-FINISH · CROSS-STATE · SPLIT-BUDGET · BOTH-ABOVE · 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.
Seattle-Tacoma-Bellevue, WA and Kahului-Wailuku, HI are a photo finish on overall price level, only 1.7 RPP points apart. A salary conversion is therefore a fine adjustment, not evidence of a fundamentally different cost regime.
Services creates the largest separation: Kahului-Wailuku is 97.8 points higher. But services and goods 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 exceed the U.S. benchmark of 100. The choice is between two national premiums, so local wages need to clear the higher baseline in either market.
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 Seattle-Tacoma-Bellevue to $98,434 in Kahului-Wailuku, but it is not a personal spending weight.
Diff -1.7 RPP
Diff +7.6 RPP
Diff +97.8 RPP
Diff -32.1 RPP
| Category | Seattle-Tacoma-Bellevue | Kahului-Wailuku | Difference |
|---|---|---|---|
| Overall | 111.1 | 109.4 | -1.7 |
| Goods | 104.0 | 111.6 | +7.6 |
| Services | 92.8 | 190.6 | +97.8 |
| Rents | 151.3 | 119.2 | -32.1 |
Vertical line = national average (100)
Seattle-Tacoma-Bellevue and Kahului-Wailuku share 17 published annual releases from 2008 through 2024. Their overall gap held broadly steady, moving from 1.6 to 1.7 RPP points. Seattle-Tacoma-Bellevue remained the higher-index metro in the latest release.
Services changed the most within this pair: its gap moved 42.8 points between the first and latest shared releases (55.0 to 97.8 points). This describes a relative price-index history, not a forecast or a household budget.
| Release Year | Seattle-Tacoma-Bellevue RPP | Kahului-Wailuku RPP | Relative Gap |
|---|---|---|---|
| 2008 | 109.1 | 107.5 | 1.6 points Seattle-Tacoma-Bellevue higher |
| 2012 | 105.3 | 102.7 | 2.7 points Seattle-Tacoma-Bellevue higher |
| 2016 | 110.2 | 102.9 | 7.3 points Seattle-Tacoma-Bellevue higher |
| 2020 | 113.0 | 111.5 | 1.5 points Seattle-Tacoma-Bellevue higher |
| 2024 | 111.1 | 109.4 | 1.7 points Seattle-Tacoma-Bellevue higher |
Annual BEA Regional Price Parity releases; a higher index means a higher price level relative to the national average of 100. Selected years shown from the full shared series.
What a salary in Seattle-Tacoma-Bellevue would need to be in Kahului-Wailuku for the same purchasing power:
| In Seattle-Tacoma-Bellevue | In Kahului-Wailuku | Difference |
|---|---|---|
| $50,000 | $49,217 | $-783 |
| $75,000 | $73,826 | $-1,174 |
| $100,000 | $98,434 | $-1,566 |
| $150,000 | $147,651 | $-2,349 |
Same BEA Regional Price Parity ratio as the table above (111.1 → 109.4), computed live from your number, nothing is sent anywhere.
Kahului-Wailuku is 1.6% less expensive than Seattle-Tacoma-Bellevue. The overall cost index is 109.4 vs 111.1 (national average = 100).
A $100,000 salary in Seattle-Tacoma-Bellevue has the same purchasing power as $98,434 in Kahului-Wailuku. This is based on the BEA Regional Price Parity indexes.
Rents in Seattle-Tacoma-Bellevue are indexed at 151.3 while Kahului-Wailuku is at 119.2 (national average = 100). Seattle-Tacoma-Bellevue 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.