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Key Biscayne vs South Beach

Neighborhood comparison in Miami, United States

Key Biscayne

108.1
COLI Index
More Expensive
VS

South Beach

104.1
COLI Index
More Affordable

Side-by-Side Comparison

1.35x
Key Biscayne Multiplier
1.30x
South Beach Multiplier
$3,375
Est. 1BR Rent
$3,250
Est. 1BR Rent
$81,075
$75K Equivalent
$78,075
$75K Equivalent

Cost Comparison

Key Biscayne
1.35x
South Beach
1.30x

Key Biscayne is 4% more expensive than South Beach within Miami. Living in South Beach instead of Key Biscayne 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.