While two-thirds of home schooling families are Christian evangelicals, the number of secular home-schoolers is significant - 25 percent, according to the Home School Legal Defense Association.
MORE: http://www.washingtonpost.com/national/on-faith/home-schooling-without-god-humanists-find-a-way/2013/07/02/b8eb1400-e33e-11e2-bffd-37a36ddab820_story.html