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People
Statistics · City
estimate
Average household size in Key Biscayne
2013 – 2024 · 12 data points
53 of 391 · Towns of Florida
Updated Oct 25, 2026
Source: U.S. Census Bureau, American Community Survey 5-year estimates, 2013 – 2024
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Overview
7 figures
People
21 figures
Economy
20 figures
Housing
8 figures
Education
10 figures
Tourism
3 figures
Climate
8 figures
Latest value · 2024
2.99per household
+0.07
since 2023 ± 0.16 · margin of error
Towns of Florida · 2024
53 of 391
Place 1 is the highest value.
since 2014
+0.01
vs Miami-Dade County
+0.23
Miami-Dade County: 2.76 · 2024
Average household size, 2013 – 2024 people per household · Key Biscayne · Miami-Dade County · Florida · United States
+0.01 since 2014
2.50
2.75
3
3.25
3.50
2013
2016
2018
2020
2024
Key Biscayne
Miami-Dade County
Florida
United States
Source: U.S. Census Bureau, American Community Survey 5-year estimates, 2013 – 2024
Compared with Average household size · people per household
Source: U.S. Census Bureau, American Community Survey 5-year estimates
The series at a glance Key Biscayne · 2013 – 2024
Latest value
2.99 · 2024
First value
2.91 · 2013
Highest
3.17 · 2020
Lowest
2.79 · 2016
Data points
12
By year
All years · 2013 – 2024
| Year | Key Biscayne | ± | Change | Miami-Dade County | Florida | United States |
|---|---|---|---|---|---|---|
| 2024estimate | 2.99 | 0.16 | +0.07 | 2.76 | 2.51 | 2.53 |
| 2023estimate | 2.92 | 0.17 | −0.21 | 2.74 | 2.51 | 2.54 |
| 2022estimate | 3.13 | 0.16 | −0.04 | 2.77 | 2.53 | 2.57 |
| 2021estimate | 3.17 | 0.18 | ±0.00 | 2.83 | 2.57 | 2.60 |
| 2020estimate | 3.17 | 0.19 | +0.25 | 2.95 | 2.62 | — |
| 2019estimate | 2.92 | 0.11 | −0.07 | 3.00 | 2.65 | — |
| 2018estimate | 2.99 | 0.14 | +0.15 | 3.07 | 2.65 | — |
| 2017estimate | 2.84 | 0.12 | +0.05 | 3.09 | 2.64 | — |
| 2016estimate | 2.79 | 0.10 | −0.03 | 3.07 | 2.64 | — |
| 2015estimate | 2.82 | 0.12 | −0.16 | 3.08 | 2.63 | — |
| 2014estimate | 2.98 | 0.16 | +0.07 | 3.06 | 2.62 | — |
| 2013estimate | 2.91 | 0.15 | 3.02 | 2.61 | — |
Source: U.S. Census Bureau, American Community Survey 5-year estimates, 2013 – 2024
Ranking · Towns of Florida
2020 · Place 1 is the highest value.
| # | Territory | Average household size | |
|---|---|---|---|
| 1 | Immokalee | 4.55 | |
| 2 | Fellsmere | 4.49 | |
| 3 | Canal Point | 4.42 | |
| 4 | St Leo | 4.30 | |
| 5 | Wimauma | 4.11 | |
| 6 | Southwest Ranches | 3.91 | |
| 7 | Florida City | 3.88 | |
| 8 | Indiantown | 3.72 | |
| 9 | Lehigh Acres | 3.65 | |
| 10 | Princeton | 3.64 | |
| 11 | Naranja | 3.63 | |
| 12 | De Leon Springs | 3.58 | |
| 13 | Hurlburt Field | 3.57 | |
| 14 | Tice | 3.57 | |
| 15 | The Hammocks | 3.55 | |
| 16 | Homestead | 3.53 | |
| 17 | Miami Gardens | 3.53 | |
| 18 | Haverhill | 3.53 | |
| 19 | South Bay | 3.52 | |
| 20 | West Park | 3.51 | |
| 21 | West Perrine | 3.47 | |
| 22 | Olympia Heights | 3.45 | |
| 23 | Pierson | 3.43 | |
| 24 | Biscayne Park | 3.42 | |
| 25 | The Acreage | 3.37 | |
| … | |||
| 45 | Pinecrest | 3.20 | |
| 46 | Royal Palm Beach | 3.19 | |
| 47 | Gladeview | 3.19 | |
| 48 | Key Biscayne | 3.17 | |
| 49 | Cooper City | 3.15 | |
| 50 | North Lauderdale | 3.14 | |
| 51 | Coral Springs | 3.13 | |
| … |
Source: U.S. Census Bureau, American Community Survey 5-year estimates, 2020
What it means
How many people share an average home.
How it is calculated
Residents of households divided by the number of households.
People
Statistics: Key Biscayne
Population
14,815
2025
Population growth
0.52%
2025 · United States
Population density
4,587
2025
Median age
42.2
2024
Children under 15
15.7%
2024 · Florida
Children under 18
31.8%
2024
Residents 65 and over
15.7%
2024
Life expectancy
77.9
2022 · Florida
Births per woman
1.63
2024 · United States
Birth rate
10.6
2024 · United States
Infant mortality
5.5
2024 · United States
Net migration
3.9
2023 · United States