2020 census As of the
2020 census, Pennington Gap had a population of 1,624. The median age was 45.8 years. 20.1% of residents were under the age of 18 and 24.9% of residents were 65 years of age or older. For every 100 females there were 87.1 males, and for every 100 females age 18 and over there were 81.8 males age 18 and over. 0.0% of residents lived in urban areas, while 100.0% lived in rural areas. There were 714 households in Pennington Gap, of which 27.0% had children under the age of 18 living in them. Of all households, 28.6% were married-couple households, 25.8% were households with a male householder and no spouse or partner present, and 38.8% were households with a female householder and no spouse or partner present. About 41.6% of all households were made up of individuals and 15.8% had someone living alone who was 65 years of age or older. Of the 811 households 22.9% had children under the age of 18 living with them, 40.4% were married couples living together, 16.2% had a female householder with no husband present, and 40.8% were non-families. 37.5% of households were one person and 16.8% were one person aged 65 or older. The average household size was 2.15 and the average family size was 2.84. The age distribution was 20.5% under the age of 18, 7.2% from 18 to 24, 25.4% from 25 to 44, 25.3% from 45 to 64, and 21.6% 65 or older. The median age was 42 years. For every 100 females, there were 81.4 males. For every 100 females aged 18 and over, there were 74.6 males. The median household income was $18,056 and the median family income was $27,875. Males had a median income of $27,885 versus $18,625 for females. The per capita income for the town was $13,742. About 28.3% of families and 31.3% of the population were below the
poverty line, including 42.0% of those under age 18 and 24.7% of those age 65 or over. ==Government==