an unincorporated town located in Martin County, governed by County Commissioners. Martin County is divided into five districts. Port Salerno is represented by Sarah Heard as part of District 4. Demographics 2020 census As of the 2020 United States census, there were 10,401 people, 4,358 households, and 2,723 families residing in the CDP. 2000 census As of the census of 2000, there were 10,141 people, 4,466 households, and 2,862 families residing in the CDP. The population density was . There were 5,126 housing units at an average density of . The racial makeup of the CDP was 88.50% White, 6.95% African American, 0.14% Native American, 0.68% Asian, 0.12% Pacific Islander, 2.27% from other races, and 1.34% from two or more races. Hispanic or Latino of any race were 8.16% of the population. There were 4,466 households, out of which 23.2% had children under the age of 18 living with them, 50.9% were married couples living together, 9.3% had a female householder with no husband present, and 35.9% were non-families. 28.9% of all households were made up of individuals, and 13.9% had someone living alone who was 65 years of age or older. The average household size was 2.25 and the average family size was 2.73. In the CDP, the population was spread out, with 19.9% under the age of 18, 6.1% from 18 to 24, 24.7% from 25 to 44, 24.6% from 45 to 64, and 24.7% who were 65 years of age or older. The median age was 44 years. For every 100 females, there were 92.8 males. For every 100 females age 18 and over, there were 91.7 males. The median income for a household in the CDP was $39,839, and the median income for a family was $45,016. Males had a median income of $32,420 versus $25,371 for females. The per capita income for the CDP was $24,948. About 7.0% of families and 9.6% of the population were below the poverty line, including 15.9% of those under age 18 and 6.8% of those age 65 or over. References External links Census-designated places in Martin County, Florida Port St. Lucie metropolitan area Populated places on the Intracoastal Waterway in Florida Former municipalities in Florida Census-designated places in Florida