This is the 19th report prepared by the American Academy of Family Physicians (AAFP) on the percentage of each US medical school's graduates entering family practice residency programs. Approximately 13.4% of the 16,143 graduates of US medical schools between July 1998 and June 1999 were first-year family practice residents in 1999, compared with 15.4% in 1998 and 16.6% in 1997. Medical school graduates from publicly funded medical schools were almost twice as likely to be first-year family practice residents in October 1999 than were residents from privately funded schools, 16.2% compared with 9.3%. The West North Central region reported the highest percentage of medical school graduates who were first-year residents in family practice programs in October 1999 at 20.6%; the Middle Atlantic and New England regions reported the lowest percentages at 7.7% and 8.0%, respectively. Nearly half of the medical school graduates (48.4%) entering a family practice residency program as first-year residents in October 1999 entered a program in the same state where they graduated from medical school. The percentages for each medical school have varied substantially from year to year since the AAFP began reporting this information. This article reports the average percentage for each medical school for the last 3 years. Also reported are the number and percentage of graduates from colleges of osteopathic medicine who entered Accreditation Council for Graduate Medical Education-accredited family practice residency programs, based on estimates provided by the American Association of Colleges of Osteopathic Medicine.