2020 census As of the
2020 census, Barnwell had a population of 4,652. The median age was 36.6 years. 24.4% of residents were under the age of 18 and 16.1% of residents were 65 years of age or older. For every 100 females there were 89.7 males, and for every 100 females age 18 and over there were 87.7 males age 18 and over. There were 1,772 households in Barnwell, of which 34.2% had children under the age of 18 living in them. Of all households, 33.1% were married-couple households, 16.9% were households with a male householder and no spouse or partner present, and 44.2% were households with a female householder and no spouse or partner present. About 31.9% of all households were made up of individuals and 13.4% had someone living alone who was 65 years of age or older. of 2000, there were 5,035 people, 2,035 households, and 1,353 families residing in the city. The
population density was . There were 2,304 housing units at an average density of . The racial makeup of the city was 49.81%
White, 47.37%
Black, 1.05%
Asian, 0.40%
Native American, 0.04%
Pacific Islander, 0.34% from
other races, and 0.99% from two or more races.
Hispanic or
Latino people of any race were 0.62% of the population. There were 2,035 households, out of which 34.3% had children under the age of 18 living with them, 40.2% were
married couples living together, 22.1% had a female householder with no husband present, and 33.5% were non-families. 30.2% of all households were made up of individuals, and 12.5% had someone living alone who was 65 years of age or older. The average household size was 2.42 and the average family size was 3.01. In the city, the population was spread out, with 28.4% under the age of 18, 8.9% from 18 to 24, 27.6% from 25 to 44, 20.3% from 45 to 64, and 14.8% who were 65 years of age or older. The median age was 35 years. For every 100 females, there were 86.8 males. For every 100 females age 18 and over, there were 79.7 males. The median income for a household in the city was $26,722, and the median income for a family was $37,841. Males had a median income of $35,039 versus $21,912 for females. The
per capita income for the city was $17,709.
placing it in the top third of the state. About 20.4% of families and 22.0% of the population were below the
poverty line, including 30.5% of those under age 18 and 16.7% of those age 65 or over. ==Events==