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In 2007, 30 states and the District of Columbia had union membership rates below that of the U.S. average, 12.1 percent, while 20 states had higher rates.
Among the five states reporting union membership rates below 5.0 percent in 2007, North Carolina posted the lowest rate (3.0 percent). The next lowest rates were recorded in Virginia (3.7 percent), South Carolina (4.1 percent), Georgia (4.4 percent), and Texas (4.7 percent).
Four states had union membership rates over 20.0 percent in 2007—New York (25.2 percent), Alaska (23.8 percent), Hawaii (23.4 percent), and Washington (20.2 percent).
These 2007 data on union membership are from the Current Population Survey. Unionization data are for wage and salary workers. Find out more in "Union Members in 2007," (PDF) (TXT) news release USDL 08-0092.
Bureau of Labor Statistics, U.S. Department of Labor, The Economics Daily, Union membership by State, 2007 at https://www.bls.gov/opub/ted/2008/jan/wk4/art02.htm (visited April 01, 2023).