Millicent resident Vicki Noll will serve in the voluntary role of Justice of the Peace for the next decade.
Her appointment was announced in the SA Government Gazette on Thursday and takes effect on Sunday (June 5).
Last year, Ms Noll took up the civilian position of administration support officer at the Millicent Police Station.
Ms Noll has lived much of her life in Millicent and is currently involved in the Rendelsham CFS and the Millicent Runners Club.
Her first job was at Fosters Foodland and her subsequent working life has involved retail, hospitality and public service roles.
She is the daughter of retired police officer and Wattle Range Mayor Des Noll.