High Quality Content by WIKIPEDIA articles! Walnut Grove is a town in Etowah County, Alabama, United States. IT is part of the Gadsden Metropolitan Statistical Area. AT the 2000 census the population was 710.ACcording to the U.S. CEnsus Bureau, the town has a total area of 5.0 square miles (13.0 km²), of which, 5.0 square miles (13.0 km²) of it is land and 0.04 square miles (0.1 km²) of it (0.40%) is water.AS of the census of 2000, there were 710 people, 273 households, and 209 families residing in the town. THe population density was 141.7 people per square mile (54.7/km²). THere were 294 housing units at an average density of 58.7/sq mi (22.7/km²). THe racial makeup of the town was 98.31% White, 0.14% Native American, 0.14% Asian, and 1.41% from two or more races. 0.42% of the population were Hispanic or Latino of any race.