In 2018, Lake Worth, FL had a population of 37.7k people with a median age of 36.4 and a median household income of $38,371. Between 2017 and 2018 the population of Lake Worth, FL grew from 37,354 to 37,728, a 1% increase and its median household income grew from $36,321 to $38,371, a 5.64% increase. The 5 largest ethnic groups in Lake Worth, FL are White (Hispanic) (40.4%), White (Non-Hispanic) (34.1%), Black or African American (Non-Hispanic) (16.4%), Other (Hispanic) (4.06%), and Asian (Non-Hispanic) (1.39%). NaNk% of the people in Lake Worth, FL speak a non-English language, and 73.2% are U.S. citizens.