The town was named for the Earl of Hillsborough, who received large grants of land from the King of England while Florida was an English possession. The strip along Florida State Road A1A is officially known as "Hillsboro Mile" in the town's boundaries, and it's the only main road in town. Because this is the only main public road, it is aligned with the residents' mansions and commonly called "Millionaires' Mile" by both local residents and visitors alike. Since the town's earliest years, the population doubles during wintertime.
Geography
Hillsboro Beach is located at . It is located in northeastern Broward County, along the Atlantic Ocean. It is on south end of the barrier island locally known as Deerfield Beach Island or Deerfield Cay. It is adjacent to the following municipalities: To its north:
As of 2010, there were 2,224 households out of which 49.1% were vacant. In 2000, 3.0% had children under the age of 18 living with them, 50.2% were married couplesliving together, 3.1% had a female householder with no husband present, and 45.7% were non-families. 40.0% of all households were made up of individuals and 24.0% had someone living alone who was 65 years of age or older. The average household size was 1.69 and the average family size was 2.13. In 2000, the town population was spread out with 3.2% under the age of 18, 1.1% from 18 to 24, 10.7% from 25 to 44, 34.0% from 45 to 64, and 51.0% who were 65 years of age or older. The median age was 65 years. For every 100 females, there were 81.2 males. For every 100 females age 18 and over, there were 79.9 males. In 2000, the median income for a household in the town was $52,159, and the median income for a family was $70,163. Males had a median income of $61,974 versus $40,089 for females. The per capita income for the town was $56,634. About 4.1% of families and 8.0% of the population were below the poverty line, including none of those under age 18 and 8.6% of those age 65 or over. As of 2000, speakers of English as their first language were 89.94% of the population, French speakers 4.04%, Italian speakers 2.64%, Spanish speakers 2.40%, while German speakers were at 0.96% of residents. As of 2000, Hillsboro Beach was the twenty-second most Canadian-populated area in the US, along with several other areas, at 1.5% of residents.
Hillsboro Beach is part of the Miami-Fort Lauderdale-Hollywood media market, which is the twelfth-largest radio market and the seventeenth-largest television market in the United States. Its primary daily newspapers are the South Florida Sun-Sentinel and The Miami Herald, and their Spanish-language counterparts El Sentinel and El Nuevo Herald.