Beacon is a small town in the north-east wheatbelt in the Shire of Mt Marshall. Beacon is approximately 320km north-east of Perth, located 42km north of Bencubbin and the (M40) -Wyalkatchem – Southern Cross Road, 140km north-east of Wongan Hills, 142km north-west of Merredin. Beacon is approx 70km south of the Emu Proof Fence. The district is made up of both pastoral and cropping country and has numerous granite outcrops and nature reserves that put on a magnificent wildflower display in season.

Beacon was gazetted in 1931. The local name of the place when the name was suggested for the townsite in 1929 was Beacon Rock, but the origin of the name was not recorded. Local usage dropped the “Rock” from the name between 1929 and 1931