Walker is a city in Vernon County, Missouri, United States.

[5] Walker is located at the intersection of Missouri routes C and AA approximately seven miles northeast of Nevada and the community of Harwood lies 5.5 miles to the northeast.

[8] According to the United States Census Bureau, the city has a total area of 0.31 square miles (0.80 km2), all land.

There were 122 housing units at an average density of 393.5 per square mile (151.9/km2).

28.3% of all households were made up of individuals, and 12.4% had someone living alone who was 65 years of age or older.

20.0% of all households were made up of individuals, and 9.1% had someone living alone who was 65 years of age or older.

About 13.8% of families and 12.9% of the population were below the poverty line, including 20.6% of those under the age of eighteen and 20.7% of those 65 or over.