As of the 2020 census the population was placed at 6,374 (up from 6,138 in 2010), making Walker and Denham Springs the only parish municipalities classified as cities.

[5] He and his wife, Martha Clark Milton (1803-1878) developed 343 acres from a Land Grant for his service in the War of 1812.

[8][9][10] In this sense, Walker, Louisiana, by virtue of its establishment, traces its roots to the founding of the nation in Jamestown, Virginia.

[12] In 1890, the post office was renamed after Dr. William Elliott Walker, M.D., a legislator from nearby Springfield, who had also served as a lieutenant colonel in the Confederate States of America.

[16] According to the United States Census Bureau, the city has a total area of 5.8 square miles (14.9 km2), all land.

The city is located roughly 20 miles east of Baton Rouge, the Louisiana State Capitol.