2020 census As of the
2020 census, Smithfield had a population of 11,292. The median age was 41.9 years. 22.6% of residents were under the age of 18 and 21.9% were 65 years of age or older. For every 100 females, there were 89.5 males, and for every 100 females age 18 and over, there were 86.5 males age 18 and over. 96.3% of residents lived in urban areas, while 3.7% lived in rural areas. There were 4,481 households and 2,919 families in Smithfield, of which 30.4% had children under the age of 18 living in them. Of all households, 35.4% were married-couple households, 20.0% were households with a male householder and no spouse or partner present, and 39.4% were households with a female householder and no spouse or partner present. About 33.2% of all households were made up of individuals and 17.2% had someone living alone who was 65 years of age or older. There were 4,940 housing units, of which 9.3% were vacant. The homeowner vacancy rate was 2.5% and the rental vacancy rate was 6.0%.
2000 census As of the
census of 2000, 11,510 people, 4,417 households, and 2,676 families resided in the town. The population density was . The 4,674 housing units had an average density of . The racial makeup of the town was 62.66% White, 30.99% African American, 0.43% Native American, 0.63% Asian, 4.16% from
other races, and 1.13% from two or more races. Hispanics or Latinos of any race were 9.9% of the population. Of the 4,417 households, 26.6% had children under 18 living with them, 42.1% were married couples living together, 14.9% had a female householder with no husband present, and 39.4% were not families. About 35.7% of all households were made up of individuals, and 16.3% had someone living alone who was 65 or older. The average household size was 2.30, and the average family size was 2.97. In the town, the age distribution was 21.3% under the age of 18, 8.3% from 18 to 24, 29.2% from 25 to 44, 22.9% from 45 to 64, and 18.2% who were 65 or older. The median age was 39 years. For every 100 females, there were 99.4 males. For every 100 females 18 and over, there were 97.6 males. The median income for a household in the town was $27,813, and for a family was $37,929. Males had a median income of $29,567 versus $24,440 for females. The
per capita income for the town was $18,012. About 14.5% of families and 20.6% of the population were below the
poverty line, including 27.1% of those under 18 and 19.2% of those 65 or over. ==Government==