The church's stated mission is to carry on the legacy of Anton LaVey through "the study of Satanism and the occult sciences".

[6] A settlement was later reached in which Anton's belongings, intellectual property and royalties would be split among his three children, Karla, Zeena and Xerxes, and that Barton would receive the “corporation known as Church of Satan.” After LaVey's death, Blanche Barton assumed the administrative leadership of the Church of Satan, although Karla LaVey had not abdicated her role as High Priestess.

Shortly thereafter, Barton appointed Peter H. Gilmore and his wife Peggy Nadramia to the positions of High Priest and Priestess, and the Church's headquarters were subsequently moved to New York City.

[7] Consequently, to carry on the legacy of her father, Karla LaVey founded the "First Satanic Church" and continues to run it out of San Francisco, California.

[8] Karla LaVey hosts a Satanic radio show every week in San Francisco in which she talks and plays the music that she grew up enjoying with her father.