According to the U.S. Census Bureau, the town has a total area of 4.0 square miles (10.3 km²), of which, 3.9 square miles (10.2 km²) of it is land and 0.1 square miles (0.2 km²) of it (1.75%) is water.
There were 344 households out of which 27.9% had children under the age of 18 living with them, 49.4% were married couples living together, 12.2% had a female householder with no husband present, and 34.3% were non-families. 33.7% of all households were made up of individuals and 18.9% had someone living alone who was 65 years of age or older. The average household size was 2.34 and the average family size was 2.98.
In the town the population was spread out with 25.7% under the age of 18, 6.5% from 18 to 24, 24.0% from 25 to 44, 22.1% from 45 to 64, and 21.6% who were 65 years of age or older. The median age was 41 years. For every 100 females there were 87.9 males. For every 100 females age 18 and over, there were 84.3 males.
The median income for a household in the town was $27,500, and the median income for a family was $36,339. Males had a median income of $29,821 versus $18,393 for females. The per capita income for the town was $15,248. About 12.3% of families and 18.0% of the population were below the poverty line, including 24.0% of those under age 18 and 18.6% of those age 65 or over.
The Honorable James Green is Mayor and a notable land speculator.
Curt Smith, owner of 3/4 of the land surrounding the town's lone traffic light.
Columbia will celebrate it's 10th River City Fest and Annual Gospel Sing in 2008. The first year 1998, the RCF & AGS was not supposed to have got off the ground. But Herietta Brown editor of the Gospel News magazine and Singing News Gospel Magazine denoted Columbia first to have the most gospel groups in a 14 hour span of time. The Record may be topped by others but we had 28 group appearances that day; The ease of it was having two stages one on one end of town, the other stage on the other end. Scott Gamble President has group times and proof of that 1998 event, all you have to do is contact him at Classicalgamble@excite.com