Highland Beach is a town in Palm Beach County, Florida, United States. As of the 2010 census, the population was 3,539.
Highland Beach was incorporated in 1949. The town was named for its relatively elevated town site.
Highland Beach is located at 26°23′59″N 80°4′6″W (26.399710, -80.068416).
According to the United States Census Bureau, the town has a total area of 1.1 square miles (2.8 km2), of which 0.5 square miles (1.3 km2) is land and 0.6 square miles (1.6 km2) (56.64%) is water.
At the 2000 census there were 3,775 people, 2,192 households, and 1,227 families in the town. The population density was 7,705.7 inhabitants per square mile (2,974.6/km2). There were 3,677 housing units at an average density of 7,505.6 per square mile (2,897.3/km2). The racial makeup of the town was 98.33% White (95.6% were Non-Hispanic White,) 0.37% African American, 0.05% Native American, 0.37% Asian, 0.11% from other races, and 0.77% from two or more races. Hispanic or Latino of any race were 2.97%.
Of the 2,192 households 4.6% had children under the age of 18 living with them, 53.2% were married couples living together, 1.5% had a female householder with no husband present, and 44.0% were non-families. 38.1% of households were one person and 23.4% were one person aged 65 or older.