Occupations with the highest employment levels, May 2013 Occupation Employment (millions) Retail salespersons 4.5 Cashiers 3.3 Combined food preparation and serving workers, including fast food 3.0 Office clerks, general 2.8 Registered nurses 2.7 Waiters and waitresses 2.4 Customer service representatives 2.4 Laborers and freight, stock, and material movers, hand 2.3 Secretaries and administrative assistants, except legal, medical, and executive 2.2 Janitors and cleaners, except maids and housekeeping cleaners 2.1
