City Dashboard
Key Biscayne, FL
Complete financial data dashboard — cost of living, mortgage calculator, salary comparisons, and tax details.Source: U.S. Census Bureau ACS 2023 · FRED
Cost Index
264
Very Expensive
Median Home Value
$1,238,700
National: $426,735
Median Rent
$3,501/mo
National: $1,527/mo
Household Income
$172,604
National: $84,532
Population
14,560
Purchasing Power
77
100 = national baseline
Cost of Living Breakdown
Housing Cost Index
290 / 100
100 = national average
Rent Index
229 / 100
Overall Index
264
Very Expensive
Key Biscayne Mortgage Calculator
Pre-filled with the local median home value of $1,238,700 and Florida's property tax rate of 0.86%.
Salary & Purchasing Power
Median household income is $172,604 — 104% above the national average.
What $172,604 in Key Biscayne Gets You Elsewhere
Property Tax in Key Biscayne, FL
Est. Annual Property Tax
$10,653
Monthly Impact
$888
Added to your mortgage
Effective Rate
0.86%
National avg: ~1.00%
Florida Tax Overview
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Cost of Living Comparison
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Key Biscayne, FL
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Cost Index Comparison (100 = National Avg)
Housing CostsNational Avg: 100
Rent Prices
LC
Reviewed by LivabilityCalc Research Team
Financial Data Analysts · Census & Economic Data Specialists
📊 Data Sources & Methodology
- Housing & Demographics: U.S. Census Bureau, American Community Survey (ACS) 2023 1-Year Estimates
- Mortgage Rates: Freddie Mac Primary Mortgage Market Survey via Federal Reserve Economic Data (FRED)
- Tax Rates: Tax Foundation State & Local Tax Data, 2024
- Cost of Living Index: Calculated using Census housing + rental data vs. national median (see methodology)
Last data update: March 2026 · Mortgage rates updated weekly · Page auto-refreshes every 24 hours via ISR