To examine the status of workforce shortages that may limit Community Health Center (CHC) expansion, the authors surveyed all 846 federally funded US CHCs that directly provide clinical services and are within the 50 states and the District of Columbia. Analysis of the results showed that CHCs face substantial challenges in recruitment of clinical staff, particularly in rural areas. The largest numbers of unfilled positions were for family physicians at a time of declining interest in family medicine among graduating U.S. medical students.