Columbia is a town in Tolland County, Connecticut, United States.

The town was named for patriotic reasons after the national symbol "Columbia".

There were 1,988 housing units at an average density of 93.1 per square mile (35.9/km2).

Most recent data shows the racial makeup of the town was 90.1% White, 1.9% African American, 0.3% Native American, 0.0% Asian, 0.0% Pacific Islander, 0.56% from other races, and 5.6% from two or more races.

Of all households 17.3% were made up of individuals, and 6.8% had someone living alone who was 65 years of age or older.