2020 census
As of the 2020 census, Riverside had a population of 522, and the median age was 46.0 years. 19.7% of residents were under the age of 18, and 28.9% of residents were 65 years of age or older. For every 100 females there were 81.2 males, and for every 100 females age 18 and over there were 78.3 males age 18 and over.[8]
0.0% of residents lived in urban areas, while 100.0% lived in rural areas.[9]
There were 231 households and 108 families residing in Riverside; 28.6% of households had children under the age of 18 living in them, 39.4% were married-couple households, 22.1% were households with a male householder and no spouse or partner present, and 32.9% were households with a female householder and no spouse or partner present. About 30.3% of all households were made up of individuals and 14.3% had someone living alone who was 65 years of age or older.[8]
There were 308 housing units, of which 25.0% were vacant. The homeowner vacancy rate was 0.6% and the rental vacancy rate was 10.5%.[8]
2000 census
As of the 2000 census[2] there were 425 people, 168 households, and 116 families residing in the city. The population density was 224.6 inhabitants per square mile (86.7/km2). There were 269 housing units at an average density of 142.2 per square mile (54.9/km2). The racial makeup of the city was 74.59% White, 20.71% African American, 0.24% Native American, 0.24% Asian, 3.29% from other races, and 0.94% from two or more races. Hispanic or Latino of any race were 7.76% of the population.
There were 168 households, out of which 25.0% had children under the age of 18 living with them, 50.0% were married couples living together, 16.7% had a female householder with no husband present, and 30.4% were non-families. 23.2% of all households were made up of individuals, and 11.3% had someone living alone who was 65 years of age or older. The average household size was 2.53 and the average family size was 3.00.
In the city, the population was spread out, with 25.4% under the age of 18, 8.0% from 18 to 24, 21.4% from 25 to 44, 29.2% from 45 to 64, and 16.0% who were 65 years of age or older. The median age was 39 years. For every 100 females, there were 93.2 males. For every 100 females age 18 and over, there were 91.0 males.
The median income for a household in the city was $24,750, and the median income for a family was $26,875. Males had a median income of $26,591 versus $24,375 for females. The per capita income for the city was $15,697. About 25.0% of families and 32.2% of the population were below the poverty line, including 50.4% of those under age 18 and 31.3% of those age 65 or over.
