In 2018, Atlantis, FL had a population of 2.08k people with a median age of 61 and a median household income of $84,519. Between 2017 and 2018 the population of Atlantis, FL declined from 2,370 to 2,079, a -12.3% decrease and its median household income grew from $82,610 to $84,519, a 2.31% increase. The 5 largest ethnic groups in Atlantis, FL are White (Non-Hispanic) (88.4%), White (Hispanic) (6.4%), Black or African American (Non-Hispanic) (3.17%), Asian (Non-Hispanic) (1.92%), and American Indian & Alaska Native (Non-Hispanic) (0.144%). NaNk% of the people in Atlantis, FL speak a non-English language, and 98.7% are U.S. citizens.