Population of the Florida Keys (2020 Census)

The 2020 US Census recorded a total population of 82,874 for the Florida Keys (all of Monroe County).

• Key West: ~26,000
• Marathon: ~9,000
• Islamorada: ~6,000
• Key Largo: ~10,000
• Remainder (smaller keys, unincorporated): ~32,000

Population has grown steadily (~10% since 2010) but faces constraints: limited land, high cost of living, hurricane risk, water/wastewater capacity.