Tandegin is a quiet locality in Western Australia within the Merredin local government area (postcode 6415). With a population of 16, the suburb has an older demographic with a median age of 58. Households earn a median income of $113K per year, with an average household size of 1.8 people. The top ancestries reported are English, Irish, Australian.

The median weekly rent is $200 (Census 2021). The median monthly mortgage repayment is $1,500.