In 2018, Highland Beach, FL had a population of 3.86k people with a median age of 65.7 and a median household income of $105,929. Between 2017 and 2018 the population of Highland Beach, FL grew from 3,720 to 3,858, a 3.71% increase and its median household income grew from $102,601 to $105,929, a 3.24% increase. The 5 largest ethnic groups in Highland Beach, FL are White (Non-Hispanic) (90.5%), White (Hispanic) (6.19%), Asian (Non-Hispanic) (1.11%), Two+ (Hispanic) (0.881%), and Black or African American (Non-Hispanic) (0.752%). NaNk% of the people in Highland Beach, FL speak a non-English language, and 97.9% are U.S. citizens.