According to the Bureau of Labor Statistics, union density in the United States dropped to 11.3% from 11.8% last year. The total number of union members dropped by 400,000 to 14.366 million. Overall employment in the United States rose by 2.4 million. Union membership in the private sector dropped to 6.6%. Public sector union membership fell to 35.9%. North Carolina had the lowest unionization rate at 2.9% and New York had the highest at 23.2%.
See "Union Membership Drops Despite Increase in Labor Force", Steven Greenhouse, The New York Times, January 22, 2013