Carnegie's empire grew to include the J. Edgar Thomson Steel Works, ( named for John Edgar Thomson, Carnegie's former boss and president of the Pennsylvania Railroad ), Pittsburgh Bessemer Steel Works, the Lucy Furnaces, the Union Iron Mills, the Union Mill ( Wilson, Walker & County ), the Keystone Bridge Works, the Hartman Steel Works, the Frick Coke Company, and the Scotia ore mines.

* Corinth, Walker County, Alabama

* Corinth, Walker County, Georgia

* John M. Walker ( Pennsylvania ) ( 1905 – 1976 ), former member of the Pennsylvania State Senate, Allegheny County Commissioner and lieutenant gubernatorial nominee

* Durham, Georgia, a place in Walker County

* Walker County ( north )

Blount County is bordered by Cullman, Marshall, Etowah, Jefferson, Walker, and St. Clair Counties.

* Walker County, Alabama-southwest

Winston County was established under the name Hancock County on February 12, 1850, from territory formerly in Walker County.

* Walker County ( south )

* Nauvoo ( part-part of Nauvoo is in Walker County )

* Walker County ( southwest )

* Walker County ( east )

Hale County is connected to three major twentieth century artists: Walker Evans photographed the area in 1936 while he collaborated with James Agee on the 1941 book Let Us Now Praise Famous Men.

Jefferson County is bordered by Blount County, Bibb County, St. Clair County, Shelby County, Tuscaloosa County, and Walker County, in Alabama.

* Sumiton ( part of Sumiton is in Walker County )

* Calhoun County, Georgia-east

* Seminole County, Georgia-east

* Floyd County, Georgia-east

* Chattooga County, Georgia-east

* Dade County, Georgia-east

* Heard County, Georgia-east

* Tift County, Georgia-east

* Habersham County, Georgia-east

* Sumter County, Georgia-east

* Pierce County, Georgia-east

* Brantley County, Georgia-east

* Whitfield County, Georgia-east

* Brooks County, Georgia-east

* Dodge County, Georgia-east

* Houston County, Georgia-east

* Elbert County, Georgia-east

* Baldwin County, Georgia-east

* Emanuel County, Georgia-east

* Burke County, Georgia-east

* Putnam County, Georgia-east

* Twiggs County, Georgia-east

* Glascock County, Georgia-east

* Thomas County, Georgia-east

* Pickens County, Georgia-east