There were strong gains in construction and manufacturing, against a background of strike actions by low-wage workers in the private sector. But destructive, politically motivated layoffs of public-sector workers continued to hurt overall public-sector union membership, leaving the total percentage of the workforce that is unionized virtually unchanged.
The total number of private-sector union members rose by 281,000, while the total number of public-sector union members fell by about 118,000. There are now more private-sector union members than public-sector members.

Industries with the biggest growth include construction (up 95,000), hospitals and transportation equipment manufacturing.

Sectors hit hardest include social assistance and administration and support services.

Union membership rates did not change in any meaningful way by gender: 10.5% of women and 11.9% of men were in unions.

States with the largest union membership rate growth include: Alabama (1.5 percentage points), Nebraska (1.3 points), Tennessee (1.3 points), Kentucky (1.2 points), New York (1.2 points), Illinois (1.2 points) and Wisconsin (1.1 points).
States with the largest union membership rate declines include: Louisiana (-1.9 percentage points), Oregon (-1.8 points), Utah (-1.3 points), Wyoming (-1.0 points), New Hampshire (-0.9 points), Montana (-0.9 points) and Texas (-0.9 points).
Private-Sector Union Membership Grows in 2013, but Attacks on Public Employees Take Toll