Banks Springs is an unincorporated community and census-designated place in Caldwell Parish, Louisiana, United States. As of the 2020 census it had a population of 1136. It is located near the center of Caldwell Parish 2 miles south of Columbia, the parish seat, and 2.5 miles north of Grayson. The CDP includes the neighborhood of Columbia Heights. U.S. Route 165 passes through the center of Banks Springs, leading north 34 miles to Monroe and southwest 62 miles to Alexandria.