The 2014 Key West, Florida, population is 24,657. There are 4,413 people per square mile (population density).
The median age is 41.2. The US median is 37.2. 40.58% of people in Key West, Florida, are married. 16.99% are divorced.
The average household size is 2.53 people. 23.29% of people are married, with children. 15.97% have children, but are single.
85.24% of people are white, 10.23% are black, 2.10% are asian, 0.34% are native american, and 0.74% claim 'Other'.
18.17% of the people in Key West, Florida, claim hispanic ethnicity (meaning 81.83% are non-hispanic).