In 2018, Sweetwater, FL had a population of 21k people with a median age of 41.8 and a median household income of $36,133. Between 2017 and 2018 the population of Sweetwater, FL grew from 20,989 to 21,027, a 0.181% increase and its median household income declined from $36,436 to $36,133, a -0.832% decrease. The 5 largest ethnic groups in Sweetwater, FL are White (Hispanic) (91.7%), White (Non-Hispanic) (2.83%), Black or African American (Hispanic) (1.12%), Black or African American (Non-Hispanic) (1.08%), and Asian (Non-Hispanic) (1.07%). NaNk% of the people in Sweetwater, FL speak a non-English language, and 66.3% are U.S. citizens.