Key Biscayne, FL Utility & Living Guide

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Tier 3 Location

Key Biscayne, FL Utility & Living Guide

Living in Key Biscayne offers a tranquil island lifestyle with stunning beaches and proximity to Miami.

Last updated: June 25, 2026
Total Utilities$310/mo
1BR Rent$2500/mo
Sales Tax7%
COL Index150 (+50% above national average)
Family Score8/10
Median Home$1,200,000
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⚠️ Natural Hazard History — Key Biscayne
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💰 Budget Calculator
🔌 Utilities
🏠 Housing
📊 Cost of Living
💰 Taxes
👨‍👩‍👧 Families
🧮 Tools

Monthly Utility Costs

⚡ Electric

$150/mo

Florida Power & Light (FPL)
🔥 Gas

N/A - Electric only
💧 Water

$60/mo

Miami-Dade Water and Sewer Department
🗑️ Garbage

$30/mo

Miami-Dade County Solid Waste Management
📶 Internet

$70/mo

Combined Average Overhead $310/month

Housing Market

Rent & Property
1 Bedroom$2500/mo
2 Bedrooms$3500/mo
3 Bedrooms$4500/mo
Median Home Price$1,200,000
Property Tax Rate1.1%
Avg Childcare/mo$1200

Key Biscayne’s housing market is highly competitive, with luxury properties dominating. Prices are significantly higher than the national average due to the island’s exclusivity.

Cost of Living

Overall COL Index

150

US national avg = 100
vs National Avg

+50% above national average

Groceries

120

Transportation

110

Healthcare

105

Childcare/mo

$1200

Tax Rates

Tax Overview
Total Sales Tax7%
Property Tax Rate1.1%
<p>State 6% + County 1% + City 0%</p>

Florida has no state income tax.

Family & Relocation

Family Vibe Score
8/10
Safety Index

80

Higher = safer
School Rating

8/10

GreatSchools avg
Avg Childcare

$1200/mo

City Pulse

Population Trend
+3% (growing)
Political Climate
Purple (mixed Democratic and Republican)
Business Momentum
Moderate with key industries in tourism, real estate, and professional services
Top Local Concerns
Sea level rise, traffic congestion, high cost of living
🚌 Transit for Families

Public transit is limited; most families rely on cars. Sidewalks are well-maintained and stroller-friendly.

🎡 Top Kid Attractions
  • 🎯
    Crandon Park
  • 🎯
    Key Biscayne Beach
  • 🎯
    Miami Seaquarium

Best Neighborhoods for Families

The Village and Ocean Point are highly sought after for families due to their proximity to top-rated schools and parks.

Household Budget Calculator

Estimate your real monthly cost of living in Key Biscayne based on your household profile.

Local Briefing & Neighborhood Pulse

Live Local News

Key Biscayne has strict zoning laws to preserve its residential character. Short-term rentals are heavily regulated.

Key Biscayne is experiencing a surge in luxury real estate investments. Remote work trends have increased demand for waterfront properties.

Financial Tools

Calculators
Planning Tools

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📊 Key Biscayne — Census & Demographic Data

Official data from the US Census Bureau, American Community Survey.

💰 Median Household Income
$167,990
👤 Median Age
41.7
🏠 Homeownership Rate
69.1%
🔑 Renter Rate
30.9%
📉 Poverty Rate
7.6%
💼 Unemployment Rate
3.9%
📡 Internet Access
95.1%
🎓 College Educated
60.2%

☀️ Seasonal Utility Costs

Summer months see higher electricity costs due to air conditioning usage. Winter months have lower utility bills with milder temperatures.

🏛️ Local Tax Details

Key ZIP code 33149: property tax millage rate of 1.1%, no local surtaxes specific to Key Biscayne.

👶 Family & Stroller Friendliness

8/10: Excellent sidewalk quality, easy park access, but limited elevator access in transit.

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