Keystone Island is located in North Miami, Florida. There are roughly 393 residents, living in 149 households. The average temperature for Keystone Island this time of the year is low of 76F and high of 88F. On average, Keystone Island gets about 5.87 inches of precipitation in July. Most residents are home owners (86%), have a post secondary degree (66%) and are single, no kids (36%).
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