Located in Florida Bay, seven miles due north of Summerland Key.

The 1861 Bache Coast Survey shows Content Keys. So named on an 1873 survey map drawn by Charles Smith. So named on the map published in Charles Tory Simpson's "In Lower Florida Wilds" (1920). Formerly inhabited.

The ruins of cisterns and building foundations may be seen on the largest of these keys. There is also said to be evidence of Indian habitation here. An article in the July, 1975 issue of Treasure magazine features Content Key, and states that gold bars and coins were found here in 1973.