Walnut Grove is an archaic placename in Yavapai County, Arizona, United States.

[4] A Wheeler Survey party came through in October 1871, and stated "At Walnut Grove is a settlement where we found well cultivated lands."

[5] The settlement of Walnut Grove is reference several times in Arizona as it is; or, The coming country (1877) by Hiram C.

[5] The Walnut Grove Elementary School District was founded to serve the community around 1875.

[8] Walnut Grove is now in Kirkland Elementary School District.