Luciferianism has no central registering body, no formal congregational structure comparable to most religions, and its practice is conducted largely through self-published books and online communities that keep no membership rolls, so no sociologist of religion has published even a rough estimate.
What would resolve this A survey instrument capable of identifying self-described Luciferians within broader surveys of religious identity or occult and Left-Hand Path practice, of the kind already used to estimate Wiccan or Satanist populations, applied consistently across at least one national population.
OpenSociology of religionAsbjorn Dyrendal, James R. Lewis and Jesper Aa. Petersen, The Invention of Satanism