In 2009, union membership rate for the United States was higher for men
(13.3 percent) than for women (11.3 percent), but the gap has narrow considerably
since 1983, when the rate for men was about 10 percentage points higher than the
rate for women.
Six states account for almost half of the national memberships:
California – 2.5 million
New York – 2.0 million
Illinois – 1.0 million
Pennsylvania – 0.8 million
Michigan – 0.7 million
Ohio – 0.7 million
Historical labor union membership data for 2000 to 2009 are now available on the Bureau of Labor Statistics (BLS) Web site. The BLS provides a number of formatting options including graphing. The data available are:
- Union affiliation of employed wage and salary workers by selected characteristics.
- Median weekly earnings of full–time wage and salary workers by union affiliation and selected characteristics.
- Union affiliation of employed wage and salary workers by occupation and industry.
- Median weekly earnings of full–time wage and salary workers by union affiliation, occupation, and industry.
- Union affiliation of employed wage and salary workers by state.
Union Financial Reports:
In addition to the BLS union data, financial and informational reports filed by unions, union officers and employees, employers, and labor relations consultants for the year 2000 and after are available at the Department of Labor's Office of Labor–Management Standards (OLMS) Web site.