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Mercer Island vs Rainier Valley

Neighborhood comparison in Seattle, United States

Mercer Island

99.4
COLI Index
More Expensive
VS

Rainier Valley

62.0
COLI Index
More Affordable

Side-by-Side Comparison

1.25x
Mercer Island Multiplier
0.78x
Rainier Valley Multiplier
$2,750
Est. 1BR Rent
$1,716
Est. 1BR Rent
$74,550
$75K Equivalent
$46,500
$75K Equivalent

Cost Comparison

Mercer Island
1.25x
Rainier Valley
0.78x

Mercer Island is 38% more expensive than Rainier Valley within Seattle. Living in Rainier Valley instead of Mercer Island could save you significantly on rent and daily expenses.

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Data Sources: Cost of living data from Numbeo · Expatistan. Rent from Numbeo Property Prices. Tax rates from OECD Taxing Wages · U.S. Bureau of Labor Statistics · U.S. Census Bureau. Salary data from BLS · Glassdoor. Exchange rates from the ECB. Updated 2026-02-28. All figures are estimates.