Prosperity Indiana
Indiana union membership share of workforce, 1964-2020
| Year | Union membership |
|---|---|
| 1964 | 40.9% |
| 1965 | 40.8% |
| 1966 | 40.7% |
| 1967 | 40.5% |
| 1968 | 40.3% |
| 1969 | 40.1% |
| 1970 | 39.9% |
| 1971 | 38.8% |
| 1972 | 37.8% |
| 1973 | 35.0% |
| 1974 | 39.8% |
| 1975 | 35.3% |
| 1976 | 33.8% |
| 1977 | 29.7% |
| 1978 | 30.8% |
| 1979 | 29.2% |
| 1980 | 29.5% |
| 1981 | 27.8% |
| 1982 | 26.5% |
| 1983 | 25.2% |
| 1984 | 25.4% |
| 1985 | 21.6% |
| 1986 | 21.1% |
| 1987 | 21.5% |
| 1988 | 20.8% |
| 1989 | 21.2% |
| 1990 | 20.1% |
| 1991 | 19.5% |
| 1992 | 19.2% |
| 1993 | 18.7% |
| 1994 | 19.4% |
| 1995 | 16.6% |
| 1996 | 15.1% |
| 1997 | 14.7% |
| 1998 | 16.4% |
| 1999 | 15.8% |
| 2000 | 15.7% |
| 2001 | 14.7% |
| 2002 | 13.4% |
| 2003 | 11.9% |
| 2004 | 11.5% |
| 2005 | 12.5% |
| 2006 | 12.0% |
| 2007 | 12.1% |
| 2008 | 12.5% |
| 2009 | 10.7% |
| 2010 | 11.0% |
| 2011 | 11.3% |
| 2012 | 9.2% |
| 2013 | 9.4% |
| 2014 | 10.8% |
| 2015 | 10.1% |
| 2016 | 10.5% |
| 2017 | 9.0% |
| 2018 | 8.9% |
| 2019 | 8.3% |
| 2020 | 8.2% |
Source: Data from Historical Statistics of the United States published by unionstats.com, 1964-1988. EPI analysis of U.S. Bureau of Labor Statistics data, 1989-2020.
Previous chart: « Cumulative change in Indiana real hourly wages, by decile, since 1979