Schlafly is the fifth child of attorney John Fred Schlafly, Jr. and political activist Phyllis Schlafly. His great-grandfather, August Schlafly, was founder of the Union Trust and Savings Bank of East St. Louis, Ill., the First National Bank of Edwardsville, Ill., and other banks in Western states. 
He graduated from Princeton University with a bachelor's degree in Electrical Engineering and Computer Science. A magna cum laude graduate from Harvard Law School, he was an editor of the Harvard Law Review. 
Schlafly teaches homeschooled children, specializing in World History and Economics. Conservapedia developed as a result of his World History course, with many lectures made available on the site for free. Schlafly and several of his former students continue to lead the project, with many current students contributing content.
Andrew Schlafly has taught homeschoolers online since the late 1990s, and in person since fall 2002. Several of Andrew Schlafly's prior course materials are available on Eagle Forum University.
- About CLEP The College-Level Examination Program.
- Andrew Schlafly, Esq.
- AMA's Secret Pact with HCFA - an article written by Andrew L. Schlafly, Esq. for the Medical Sentinel
- About Andrew L. Schlafly on HimHo
- Andrew L. Schlafly bio on the Eagle Forum