Palm Beach, FL vs Key Biscayne, FL: Cost of Living

Which city costs less?

Key Biscayne, FL has a modeled overall cost index 13.4% higher than Palm Beach, FL.

Palm Beach, FL · modeled 2BR rent: $2,410 / month
Key Biscayne, FL · modeled 2BR rent: $3,450 / month

These are saved estimates, not current rental listings. Some cities use adjusted regional data. Your household budget can differ from the overall index. Sources and assumptions

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Cost of Living Comparison 2026

Compare Palm Beach, FL and Key Biscayne, FL using saved regional data and explicit budgeting assumptions. Rent estimates are not live listings. Change the salary below, then check the source notes before applying a result to your household.

Saved regional estimates · Sources and assumptions

Current salary in Palm Beach, FL

Numbers update automatically as you type

Estimated extra cost: $716/month in Key Biscayne, FL

$150,000 in your current city has a modeled equivalent of $158,595 in Key Biscayne, FL

Regional cost estimates: Palm Beach, FL uses Hialeah, FL. Key Biscayne, FL uses Miami, FL. Available city ZIP rent estimates are shown separately.

Overall Cost

↑ 13.4%

More expensive

Monthly Impact

$716

Extra cost

Annual Impact

$8.6K

Per year

Assumes 60% of current gross income goes to living costs. The headline uses the category budget below; taxes, moving costs and savings goals are excluded.

Palm Beach, FL

Population:9K

Cost Index:

100.4

100 = national average

Typical Home:$1.49M

Key Biscayne, FL

Population:14K

Cost Index:

113.9

100 = national average

Typical Home:$1.62M

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Palm Beach, FL

The Sunshine State

Population

State Tax

No Income Tax

Located in Florida, this city has a population of 9K residents.

💡 Advantage: Florida has no state income tax!

Key Biscayne, FL

The Sunshine State

14K

Population

State Tax

No Income Tax

Located in Florida, this city has a population of 14K residents.

💡 Advantage: Florida has no state income tax!

Cost Breakdown by Category

Estimated monthly spending: Palm Beach, FL vs Key Biscayne, FL

Assumes 60% of your current gross income is spent on these categories. The headline and totals use this same budget. Rent estimates below are separate reference data. Rounded amounts may differ by $1.

Category	Palm Beach, FL	Key Biscayne, FL	Difference	Change
Housing	$2,544/mo	$2,983/mo	↑ $439more	17.3%
Other	$1,675/mo	$1,879/mo	↑ $204more	12.2%
Transportation	$1,272/mo	$1,313/mo	↑ $40.93more	3.2%
Groceries	$992/mo	$1,007/mo	↑ $15.83more	1.6%
Healthcare	$541/mo	$549/mo	↑ $8.63more	1.6%
All Utilities	$477/mo	$485/mo	↑ $7.61more	1.6%

Housing

↑ 17.3%

Palm Beach, FL

$2,544

Key Biscayne, FL

$2,983

Difference

$439

Other

↑ 12.2%

Palm Beach, FL

$1,675

Key Biscayne, FL

$1,879

Difference

$204

Transportation

↑ 3.2%

Palm Beach, FL

$1,272

Key Biscayne, FL

$1,313

Difference

$40.93

Groceries

↑ 1.6%

Palm Beach, FL

$992

Key Biscayne, FL

$1,007

Difference

$15.83

Healthcare

↑ 1.6%

Palm Beach, FL

$541

Key Biscayne, FL

$549

Difference

$8.63

All Utilities

↑ 1.6%

Palm Beach, FL

$477

Key Biscayne, FL

$485

Difference

$7.61

🏠Rent Comparison

Studio

From$1,910

To$2,590

↑ $680

1 Bed

From$2,030

To$2,820

↑ $790

2 Bed

From$2,410

To$3,450

↑ $1,040

3 Bed

From$3,120

To$4,420

↑ $1,300

Palm Beach, FLZIP-level data

1BR range: $2,030–$2,030/mo

Key Biscayne, FLZIP-level data

1BR range: $2,820–$2,820/mo

💡 Note: HUD Fair Market Rents estimate 40th-percentile gross rents, including most tenant-paid utilities. City ZIP summaries are medians of those estimates, not market median rents. Actual prices vary by neighborhood, amenities, and condition. Source: HUD Small Area Fair Market Rents FY2026.

$7,500

Monthly in Palm Beach, FL

$8,216

Monthly in Key Biscayne, FL

$716

Difference

Home Values

Palm Beach

Key Biscayne

$1.49M

Median Value

$1.62M

↓ -2.3%

YoY Change

↓ -3.1%

↑ +65.2%

5-Year Change

↑ +48.2%

Homes in Key Biscayne are 8% more expensive than Palm Beach

Calculate payment - Palm Beach Calculate payment - Key Biscayne

Source: Zillow Home Value Index (ZHVI), January 2026

Tax Comparison

Annual tax burden comparison at $150.0K salary

Tax Savings

→ $0

Same taxes

Monthly Difference

Same take-home

Effective Rate Diff

0.0%

Rate difference

Palm Beach, FL

Federal Income Tax

Effective: 18.9%

$25.5K

Florida State Tax

No state income tax

FICA Taxes

Social Security + Medicare

$11.5K

Total Taxes

Effective: 24.7%

$37.0K

Take-Home Pay

$9,416/month

$113.0K

Key Biscayne, FL

Federal Income Tax

Effective: 18.9%

$25.5K

Florida State Tax

No state income tax

FICA Taxes

Social Security + Medicare

$11.5K

Total Taxes

Effective: 24.7%

$37.0K

Take-Home Pay

$9,416/month

$113.0K

Additional Tax Information

Palm Beach, FL Tax Rates

Sales Tax:7.2%

Property Tax:0.8%

Key Biscayne, FL Tax Rates

Sales Tax:7.2%

Property Tax:0.8%

💡 Note: Tax calculations are estimates based on 2024/2025 tax brackets for single filers with standard deduction. Actual taxes may vary based on filing status, deductions, credits, and local variations.

Environment

Palm Beach

Key Biscayne

48 Good

Air Quality

48 Good

59.8%

Good Air Days

59.8%

100 Very High

Climate Risk

100 Very High

🌊🌅🌀

Top Hazards

🌊🌅🌀

▲+2.3°F

2050 Outlook

▲+2.3°F

22 days

Heat Days >95°F

15 days

▲+2.3°F

2050 Outlook

▲+2.3°F

22 days

Heat Days >95°F

15 days

Before moving from Palm Beach, FL to Key Biscayne, FL

Use this comparison to shortlist a move, then check the costs that depend on your household.

Compare actual homes. Get current quotes in Key Biscayne, FL for the same bedroom count and included utilities as your home in Palm Beach, FL. Add parking, deposits, insurance and any overlapping leases. The rent estimates above are a starting point, not available listings.
Confirm your income. Check your expected pay with your employer, including any location adjustment. Use “Different salary at destination?” above to compare two incomes. The budget model excludes taxes and one-time moving costs; it is not a take-home-pay calculation.
Price your daily routine. Check the commute from a specific address to work, school or childcare. Add household expenses missing from this model, such as childcare, debt payments and medical needs. Verify local services before signing a lease.
Plan the transition. Get moving quotes and budget for travel, setup costs and time off. Open your Palm Beach to Key Biscayne moving checklist to organize the tasks and timing.

Still choosing a destination? Explore cities similar to Key Biscayne, FL by cost, housing, population and region.

Frequently Asked Questions: Palm Beach, FL vs Key Biscayne, FL

How do the cost estimates for Palm Beach, FL and Key Biscayne, FL compare?

Key Biscayne, FL has a modeled overall cost index 13.4% higher than Palm Beach, FL. This is a broad model comparison, not a survey of today's prices or a forecast of your household spending. Some cities use adjusted regional fallback data.

What does the equivalent salary mean?

At a $150,000 salary in Palm Beach, FL, the model estimates $158,595 in Key Biscayne, FL. It allocates 60% of gross income to the origin city’s category budget and applies each destination category’s relative cost. The equivalent salary adds the total category difference to your income. The monthly difference is the same category difference divided by 12; it is not take-home pay or guaranteed savings. Household size, childcare and your actual lease are not inputs to this calculation.

What rent estimates are available for Palm Beach, FL and Key Biscayne, FL?

The modeled two-bedroom rents are $2,410/month in Palm Beach, FL and $3,450/month in Key Biscayne, FL. Where available, the source is a city median of HUD FY2026 ZIP-level estimates; otherwise a saved metro table is used. City adjustments may also apply. These are not asking rents or available listings. Compare actual properties with the same bedroom count and included utilities.

How should I use this comparison before moving?

Use it to shortlist locations, then replace modeled costs with a current housing quote, employer-confirmed income, commute costs, insurance and your household's other expenses. Add one-time moving costs separately. Source years differ and the saved datasets are not a live price feed. Read the methodology for the formulas and fallback rules.