The 2016 Key West, Florida, population is 25,755. There are 4,599 people per square mile (population density).
The median age is 40.4. The US median is 37.4. 39.60% of people in Key West, Florida, are married. 16.73% are divorced.
The average household size is 2.59 people. 24.20% of people are married, with children. 15.84% have children, but are single.
66.77% of people are white, 10.31% are black, 0.87% are asian, 0.79% are native american, and 0.07% claim 'Other'.
19.89% of the people in Key West, Florida, claim hispanic ethnicity (meaning 80.11% are non-hispanic).
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