About Key Largo

Photo by Andy Newman/Florida Keys News Bureau. Key Largo Chamber of Commerce | Key Largo, FL

Photo by Andy Newman/Florida Keys News Bureau

Key Largo is the first and longest Key, 33 miles long, in the island chain of the Florida Keys. We are the northernmost island of the Florida Keys connected to the mainland by one primary route - US Highway 1 and one bridge - Jewfish Creek Bridge.

Once called Rock Harbor, but renamed after the popular 1948 movie Key Largo starring Humphrey Bogart and Lauren Bacall. A portion of the movie was filmed in Key Largo.

  • Area – Elevation - 14.4 square miles 5,186 acres 8' average elevation
  • Land Coordinates - 25° 05.1' N Latitude 80° 26.7' W Longitude
  • Population – 10,433 (2010)

Weather (Monthly Averages)

Month High Temp. Low Temp. Rainfall Water Temp
January 75° 62° 2.47" 73°
February 76° 62° 1.93" 72°
March 78° 65° 2.14" 73°
April 82° 70° 1.99" 76°
May 85° 74° 3.73" 78°
June 87° 77° 6.90" 79°
July 89° 79° 3.23" 82°
August 89° 78° 5.20" 85°
September 87° 77° 6.72" 85°
October 84° 74° 5.40" 82°
November 80° 70° 3.08" 78°
December 76° 65° 2.03" 75°