[3] Columbia Township is a largely rural area with many farms.

It is also home to several lakes with a significant percentage of the population living on them, frequently retirees from Chicago.

Many summer lake cottages are owned by families with roots in the Chicago area.

The Kal-Haven Trail State Park goes through Columbia Township in an east–west direction, passing through both Berlamont and Grand Junction.

21.8% of all households were made up of individuals, and 7.5% had someone living alone who was 65 years of age or older.