There are 12 cities in Monroe County, Florida.

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City
Rank
State
2024 Population
2020 Census
Annual Change
Density (mi²)
Area (mi²)
Key West1Florida24,79326,368-1.6%4,4355.59
Key Largo2Florida12,0219,670 99812.05
Marathon3Florida9,7419,857-0.59%1,1538.45
Stock Island4Florida4,5644,692 5,4530.84
Big Pine Key5Florida4,5024,853 44110.20
Big Coppitt Key6Florida3,1882,644 2,7631.15
Tavernier7Florida2,2611,980 8992.51
Cudjoe Key8Florida2,2382,157 4335.17
North Key Largo9Florida1,271884 6818.59
Key Colony Beach10Florida755788-1.05%1,7160.44
Duck Key11Florida731761 1,2200.60
Layton12Florida203210-0.98%1,2530.16
showing: 12 rows

Cities in Monroe County, Florida by Population (2024)

What is the largest city in Monroe County, Florida?

Key West is the largest city in Monroe County.

What is the smallest city in Monroe County, Florida?

Layton is the smallest city in Monroe County.

How many cities are in Monroe County?

There are 12 cities in Monroe County, Florida.

Frequently Asked Questions