West Columbia was incorporated in 1894 as Brookland, but the United States Postal Service called the town "New Brookland" since there was another town called Brookland. In 1936, the name was changed to West Columbia to emphasize its proximity to Columbia, South Carolina. Numerous businesses, churches and a high school retain the Brookland and New Brookland names.
Columbia Metropolitan Airport, which serves Columbia, is located in this city.
As of the census of 2000, there were 13,064 people, 5,968 households, and 3,300 families residing in the city. The population density was 2,150.6 people per square mile (831.0/km²). There were 6,436 housing units at an average density of 1,059.5/sq mi (409.4/km²). The racial makeup of the city was 74.54% White, 19.81% African American, 0.28% Native American, 1.71% Asian, 0.02% Pacific Islander, 2.04% from other races, and 1.61% from two or more races. Hispanic or Latino of any race were 4.66% of the population.
There were 5,968 households out of which 22.0% had children under the age of 18 living with them, 37.5% were married couples living together, 14.3% had a female householder with no husband present, and 44.7% were non-families. 36.1% of all households were made up of individuals and 13.0% had someone living alone who was 65 years of age or older. The average household size was 2.13 and the average family size was 2.76.
In the city the population was spread out with 18.8% under the age of 18, 10.1% from 18 to 24, 30.0% from 25 to 44, 22.1% from 45 to 64, and 19.0% who were 65 years of age or older. The median age was 39 years. For every 100 females there were 88.5 males. For every 100 females age 18 and over, there were 86.1 males.
The median income for a household in the city was $30,999, and the median income for a family was $40,253. Males had a median income of $30,033 versus $24,637 for females. The per capita income for the city was $18,135. About 12.8% of families and 16.8% of the population were below the poverty line, including 24.5% of those under age 18 and 11.4% of those age 65 or over.