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Below is information on the population, racial profile, house hold count, and sex/age profiles for the city of Key Biscayne. These results are gathered once every 10 years and may not be 100% accurate or up to date.
The population for Key Biscayne, Florida is approximatly 10507.
Racial profile for Key Biscayne:
| White : | 10030 |
| Black : | 48 |
| Native American : | 15 |
| Asian : | 97 |
| Pacific Islander : | 0 |
| Other : | 157 |
| * results may not accumulate to total population due to mixed race individuals | |
Population by age for males in Key Biscayne, Florida :
| 18 - 19 : | 77 |
| 20 : | 26 |
| 21 : | 36 |
| 22 - 24 : | 100 |
| 25 - 29 : | 186 |
| 30 - 34 : | 302 |
| 35 - 39 : | 440 |
| 40 - 44 : | 433 |
| 45 - 49 : | 363 |
| 50 - 54 : | 310 |
| 55 - 59 : | 313 |
| 60 - 61 : | 127 |
| 62 - 64 : | 170 |
| 65 - 66 : | 84 |
| 67 - 69 : | 142 |
| 70 - 74 : | 199 |
| 75 - 79 : | 164 |
| 80 - 84 : | 117 |
| 85+ : | 63 |
Population by age for females in Key Biscayne, Florida :
| 18 - 19 : | 73 |
| 20 : | 37 |
| 21 : | 30 |
| 22 - 24 : | 105 |
| 25 - 29 : | 291 |
| 30 - 34 : | 432 |
| 35 - 39 : | 550 |
| 40 - 44 : | 479 |
| 45 - 49 : | 400 |
| 50 - 54 : | 400 |
| 55 - 59 : | 372 |
| 60 - 61 : | 133 |
| 62 - 64 : | 141 |
| 65 - 66 : | 102 |
| 67 - 69 : | 134 |
| 70 - 74 : | 225 |
| 75 - 79 : | 195 |
| 80 - 84 : | 118 |
| 85+ : | 91 |
The total amount of households in Key Biscayne, Florida is 4259. With 10507 people of the population in these households. The average household size is 2.47.
8658 people in Key Biscayne, Florida are part of a family. The average family size in Key Biscayne is 2.99 people.
There are 2133 married families in Key Biscayne, Florida.
Number of married families by number of members in the family :
| 0 - 2 : | 414 | 3 - 4 : | 292 | 5 : | 131 | 6 - 11 : | 795 | 12 - 17 : | 501 |