Holt is an unincorporated community and census-designated place in Tuscaloosa County. At the 2000 census the population was 4,103. It was named for Frank Holt who purchased the property on which the community grew in 1901. The Holt post office was established in 1903.
According to the U.S. Census Bureau, the community has a total area of 3.2 square miles, all of it land.
As of the census of 2000, there were 4,103 people, 1,614 households, and 1,081 families residing in the community. The population density was 1,268.0 people per square mile. There were 1,835 housing units at an average density of 567.1/sq mi. The racial makeup of the community was 52% White and 47% Black or African American.
There were 1,614 households out of which 31.4% had children under the age of 18 living with them, 41.4% were married couples living together, 20.4% had a female householder with no husband present, and 33.0% were non-families. 28.5% of all households were made up of individuals and 9.3% had someone living alone who was 65 years of age or older. The average household size was 2.54 and the average family size was 3.12.
In the community the population was spread out with 27.1% under the age of 18, 10.7% from 18 to 24, 27.5% from 25 to 44, 21.6% from 45 to 64, and 13.1% who were 65 years of age or older. The median age was 35 years. For every 100 females there were 97.2 males. For every 100 females age 18 and over, there were 94.3 males.
The median income for a household in the community was $27,273, and the median income for a family was $33,165. Males had a median income of $28,212 versus $17,048 for females. The per capita income for the community was $12,049. About 11.3% of families and 20.2% of the population were below the poverty line, including 24.7% of those under age 18 and 23.3% of those age 65 or over.