Anthropometric Reference Data, United States, 1988-1994

I've located some more recent data sets for the U.S. population from the National Health and Nutrition Examination Survey of the Center for Disease Control (CDC).  This is an extensive data set, focusing on a range of characteristics, primarily around health/nutrition attributes, but certainly applicable to many ergonomic design characteristics.  Includes 64 tables covering everything from weight, height to wrist and buttock circumference:

Anthropometric Data Sets