In 2018, Lauderdale-by-the-Sea, FL had a population of 6.59k people with a median age of 62.2 and a median household income of $65,417. Between 2017 and 2018 the population of Lauderdale-by-the-Sea, FL grew from 6,441 to 6,594, a 2.38% increase and its median household income grew from $64,125 to $65,417, a 2.01% increase. The 5 largest ethnic groups in Lauderdale-by-the-Sea, FL are White (Non-Hispanic) (82.5%), White (Hispanic) (10.4%), Black or African American (Non-Hispanic) (3.28%), Two+ (Non-Hispanic) (2.11%), and American Indian & Alaska Native (Non-Hispanic) (0.682%). Na% of the people in Lauderdale-by-the-Sea, FL speak a non-English language, and 89.3% are U.S. citizens.