Key Biscayne
Property Data

Miami-Dade County, Florida

Explore accurate parcel and ownership records,
directly sourced from county assessors.

Miami-Dade County

ZIP Codesby Total Population

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Total Population
14,79114,791

DistributionTotal Population

No data available

Demographics

Total Population

14,791

Median Age

42.2

Population Under 18

31.8%

Population 65+

15.7%

Total Households

4,945

Average Household Size

2.99

Key Biscayne, FL housing and demographic statistics

ZIP/ZCTA areas can cross city and county boundaries. Each row describes its ZIP/ZCTA area, not the city as a whole. These values are not combined into a city estimate.

Individual ZIP/ZCTA estimates associated with Key Biscayne, FL
ZIP/ZCTAPopulationMedian household incomeMedian monthly gross rentOwner-occupied share
3314914,791$181,505$3,50166.6%

Source: U.S. Census Bureau American Community Survey (ACS), 2020–2024 five-year estimates, via Realie. Measurement period: –. Published by the Census Bureau on ; published by Realie on . These are five-year estimates, not a measurement of current conditions. — indicates unavailable or suppressed data.

Area property statistics

Recorded property characteristics and residential parcel-sale records for Key Biscayne, FL. Sale amounts describe recorded transfers, not asking prices or appraisals. Each measure uses records with that information available.

Sale records use the AVM's residential, amount, floor-area, year-built, price-per-area, deed, buyer-relationship and distress filters. Known multi-parcel deals are also excluded. Unknown package flags are not proof of a single-parcel sale. Counts represent eligible parcel sale records. Recorded annual averages require at least 10 eligible sales. Projections must have enough history and pass checks against earlier recorded sales. Recent sales can be underreported; different coverage between years can affect the changes.

City measurements cover the selected county's portion of the city.

Annual sales comparison

Calendar 2025 recorded sales versus calendar 2026 model projections. Both years cover January 1–December 31. Change compares the 2026 projection with the recorded 2025 value. Annual average amounts weight each month by its sales count; they are not monthly medians.

Calendar-year sales comparison
Metric20252026 projectedChange (%)
Residential sale records246Recorded256Model estimateRange: 241–266+4.1%
Average recorded sale amount$2,064,254Recorded$2,258,978Model estimate+9.4%

Projections are not confirmed transactions or property valuations. Recent sales can be underreported; different coverage between years can affect the change. Unsupported values remain unavailable. Ranges reflect historical model errors, not confidence intervals. Annual comparison calculated . Assumed observation cutoff: June 2026; not verified completeness.

Recorded property statistics

Reported property statistics for Key Biscayne, FL
MeasureKey Biscayne, FLMiami-Dade County, FL
Median recorded sale amount$1,545,000$535,000
Recorded amount, 10th percentile$686,500$235,000
Recorded amount, 90th percentile$4,570,000$1,575,000
Average recorded floor area (sq ft)2,1211,775
Average recorded bedrooms2.62.8
Average recorded bathrooms2.72.1
Median year built19781980
Condominium share of properties77.1%34.7%

Key Biscayne, FL: Recorded median and percentile amounts: May 7, 2025–Oct 28, 2026.

County input file published Oct 27, 2026. Calculated . Published . Dataset last refreshed: .

Miami-Dade County, FL: Recorded median and percentile amounts: May 7, 2025–Oct 28, 2026.

County input file published Oct 27, 2026. Calculated . Published . Dataset last refreshed: .

Source: Realie property-record aggregates. Input publication and calculation dates do not establish complete transaction coverage. Missing measures are shown as — or omitted.

Other recent-period estimates

These use different periods from the calendar-year comparison. Estimates extend parcel-record counts and recorded amounts; they are not confirmed current transactions or individual-property values.

Parcel sale records
Oct 1, 2025–Sep 30, 2026
256
Model estimateHistorical error-adjusted range: 244–265.
Median sale amount
September 2026
Unavailable
The estimate did not pass checks against recorded sales.
Median-amount change
September 2026 versus the prior year
Unavailable
There is not enough supported history for this estimate.

Transaction coverage has not been verified. Known multi-parcel deals are excluded; missing package flags do not establish that every remaining sale covers one parcel. Amount change compares monthly record medians, not the appreciation of the same homes. Ranges reflect historical model errors; they are not confidence intervals and can exclude the point estimate. Assumed observation cutoff: June 2026; not a verified completeness date.

Properties in Key Biscayne

Showing page 2 of properties

100 Ocean Lane Drive Apt 504

Key Biscayne, FL 33149

100 Ocean Lane Drive Apt 307

Key Biscayne, FL 33149

100 Ocean Lane Drive Apt 406

Key Biscayne, FL 33149

100 Ocean Lane Drive Apt 501

Key Biscayne, FL 33149

100 Sunrise Drive Apt 28

Key Biscayne, FL 33149

100 Sunrise Drive Apt 17

Key Biscayne, FL 33149

100 Sunrise Drive Apt 36

Key Biscayne, FL 33149

100 Sunrise Drive Apt 24

Key Biscayne, FL 33149

100 Sunrise Drive Apt 1

Key Biscayne, FL 33149

100 Sunrise Drive Apt 7

Key Biscayne, FL 33149

100 Sunrise Drive Apt 11

Key Biscayne, FL 33149

100 Sunrise Drive Apt 23

Key Biscayne, FL 33149

100 Sunrise Drive Apt 13

Key Biscayne, FL 33149

100 Sunrise Drive Apt 15

Key Biscayne, FL 33149

100 Sunrise Drive Apt 8

Key Biscayne, FL 33149

100 Sunrise Drive Apt 35

Key Biscayne, FL 33149

100 Sunrise Drive Apt 22

Key Biscayne, FL 33149

100 Sunrise Drive Apt 34

Key Biscayne, FL 33149

100 Sunrise Drive Apt 3

Key Biscayne, FL 33149

100 Sunrise Drive Apt 14

Key Biscayne, FL 33149

100 Sunrise Drive Apt 29

Key Biscayne, FL 33149

100 Sunrise Drive Apt 26

Key Biscayne, FL 33149

100 Sunrise Drive Apt 9

Key Biscayne, FL 33149

100 Sunrise Drive Apt 19

Key Biscayne, FL 33149

100 Sunrise Drive Apt 5

Key Biscayne, FL 33149

100 Sunrise Drive Apt 6

Key Biscayne, FL 33149

100 Sunrise Drive Apt 25

Key Biscayne, FL 33149

100 Sunrise Drive Apt 4

Key Biscayne, FL 33149

100 Sunrise Drive Apt 10

Key Biscayne, FL 33149

100 Sunrise Drive Apt 30

Key Biscayne, FL 33149

100 Sunrise Drive Apt 21

Key Biscayne, FL 33149

100 Sunrise Drive Apt 32

Key Biscayne, FL 33149

100 Sunrise Drive Apt 16

Key Biscayne, FL 33149

100 Sunrise Drive Apt 2

Key Biscayne, FL 33149

100 Sunrise Drive Apt 12

Key Biscayne, FL 33149

100 Sunrise Drive Apt 18

Key Biscayne, FL 33149

100 Sunrise Drive Apt 27

Key Biscayne, FL 33149

100 Sunrise Drive Apt 33

Key Biscayne, FL 33149

100 Sunrise Drive Apt 20

Key Biscayne, FL 33149

100 Sunrise Drive Apt 31

Key Biscayne, FL 33149

1000 Mariner Drive

Key Biscayne, FL 33149

1005 Mariner Drive

Key Biscayne, FL 33149

101 Buttonwood Drive

Key Biscayne, FL 33149

101 Cape Florida Drive

Key Biscayne, FL 33149

101 Crandon Boulevard Apt 277

Key Biscayne, FL 33149

101 Crandon Boulevard Apt 476

Key Biscayne, FL 33149

101 Crandon Boulevard Apt 174

Key Biscayne, FL 33149

101 Crandon Boulevard Apt 165

Key Biscayne, FL 33149

101 Crandon Boulevard Apt 373

Key Biscayne, FL 33149

101 Crandon Boulevard Apt 377

Key Biscayne, FL 33149

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