2020 census As of the
2020 census, Kirbyville had a population of 2,036 and 511 families; the median age was 37.7 years. 28.3% of residents were under the age of 18 and 17.6% of residents were 65 years of age or older. For every 100 females there were 86.6 males, and for every 100 females age 18 and over there were 81.6 males age 18 and over. There were 809 households in Kirbyville, of which 34.5% had children under the age of 18 living in them. Of all households, 37.0% were married-couple households, 17.1% were households with a male householder and no spouse or partner present, and 40.4% were households with a female householder and no spouse or partner present. About 35.8% of all households were made up of individuals and 15.8% had someone living alone who was 65 years of age or older. There were 951 housing units, of which 14.9% were vacant. The homeowner vacancy rate was 2.5% and the rental vacancy rate was 9.8%.
2000 census As of the
census of 2000, 2,085 people, 828 households, and 550 families resided in the city. The population density was . The 931 housing units averaged 382.2 per square mile (147.3/km). The
racial makeup of the city was 76.31% White, 21.20% African American, 0.34% Native American, 0.29% Asian, 1.20% from other races, and 0.67% from two or more races. Hispanics or Latinos of any race were 2.69% of the population. Of the 828 households, 32.5% had children under the age of 18 living with them, 43.5% were
married couples living together, 18.8% had a female householder with no husband present, and 33.5% were not families. About 30.7% of all households were made up of individuals, and 14.6% 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 distributed as 27.4% under the age of 18, 9.0% from 18 to 24, 24.3% from 25 to 44, 21.0% from 45 to 64, and 18.4% who were 65 years of age or older. The median age was 37 years. For every 100 females, there were 79.3 males. For every 100 females age 18 and over, there were 72.2 males. The median income for a household in the city was $25,438, and for a family was $32,381. Males had a median income of $30,144 versus $20,060 for females. The
per capita income for the city was $12,839. About 22.6% of families and 26.1% of the population were below the
poverty line, including 33.9% of those under age 18 and 17.2% of those age 65 or over. ==Arts and culture==