In 2019, Key Biscayne, FL had a population of 12.9k people with a median age of 42.4 and a median household income of $151,310. Between 2018 and 2019 the population of Key Biscayne, FL declined from 13,054 to 12,915, a −1.06% decrease and its median household income grew from $133,958 to $151,310, a 13% increase.
The 5 largest ethnic groups in Key Biscayne, FL are White (Hispanic) (66.8%), White (Non-Hispanic) (29.8%), Other (Hispanic) (1.39%), Two+ (Hispanic) (1.08%), and Two+ (Non-Hispanic) (0.379%). 0% of the households in Key Biscayne, FL speak a non-English language at home as their primary language.
74.7% of the residents in Key Biscayne, FL are U.S. citizens.
In 2019, the median property value in Key Biscayne, FL was $1.21M, and the homeownership rate was 69.5%. Most people in Key Biscayne, FL drove alone to work, and the average commute time was 23.4 minutes. The average car ownership in Key Biscayne, FL was 2 cars per household.