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South Carolina
JUDICIAL DEPARTMENT
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Judge R. Knox McMahon

Royce Knox McMahon was born in Columbia, South Carolina to the late Royce Edward McMahon, a Columbia Police Sergeant and Detective, and Lena Elizabeth Knox McMahon.

Judge McMahon has four children (one deceased) and three grandchildren.

Judge McMahon received his B.A. and J.D. from USC. He is a former Columbia Police Officer, USC Police Officer, Lexington County Sheriff’s Deputy, Assistant Solicitor, and private practitioner.

Photo of Judge R. McMahon
The Honorable R. Knox McMahon
Lexington County Judicial Center
205 E. Main Street
Lexington, SC 29072
OFFICE: (803) 785-8239
FAX: (803) 785-8444

Law Clerk: Justin Hunter