2020 census As of the
2020 census, Quitman had a population of 4,064. The median age was 39.0 years. 26.3% of residents were under the age of 18 and 18.3% were 65 years of age or older. For every 100 females, there were 80.6 males, and for every 100 females age 18 and over, there were 77.1 males age 18 and over. 0.0% of residents lived in urban areas, while 100.0% lived in rural areas. There were 1,637 households, including 836 families, in Quitman. Of all households, 32.4% had children under the age of 18 living in them, 25.3% were married-couple households, 18.8% were households with a male householder and no spouse or partner present, and 48.7% were households with a female householder and no spouse or partner present. About 31.5% of all households were made up of individuals, and 15.6% had someone living alone who was 65 years of age or older. There were 1,881 housing units, of which 13.0% were vacant. The homeowner vacancy rate was 2.4% and the rental vacancy rate was 9.2%. ==Industry==