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Union Membership Historical Table for Indiana

Union affiliation of employed wage and salary workers, Indiana, annual averages, 1989–2025 (numbers in thousands)
YearTotal
employed		Members of unions(1)Represented by unions(2)
TotalPercent of
employed		TotalPercent of
employed

1989

2,47652021.056022.6

1990

2,38747219.850821.3

1991

2,35245219.249020.8

1992

2,41146019.150120.8

1993

2,46845718.548619.7

1994

—————

1995

2,69044316.548217.9

1996

2,65238514.942816.1

1997

2,73339914.643816.0

1998

2,65843116.247217.7

1999

2,70442415.745416.8

2000

2,72242015.446217.0

2001

2,74340114.642615.5

2002

2,81437613.440814.5

2003

2,76832711.835212.7

2004

2,71731111.433812.4

2005

2,78934612.436813.2

2006

2,78733412.036213.0

2007

2,77933312.035912.9

2008

2,81134912.438613.7

2009

2,61227710.631912.2

2010

2,55427910.931312.2

2011

2,68130211.333312.4

2012

2,7022469.126910.0

2013

2,6822499.327510.3

2014

2,80229910.733512.0

2015

2,82828310.031911.3

2016

2,92730410.433511.4

2017

2,9872668.92899.7

2018

3,0492698.82839.3

2019

3,0072498.32969.8

2020

2,8382358.32709.5

2021

2,8442569.029010.2

2022

3,0232237.42608.6

2023

3,0542458.02789.1

2024

2,9992719.031310.4

2025(3)

3,1432608.33019.6

Footnotes:
(1) Data refer to members of a labor union or an employee association similar to a union.
(2) Data refer to both union members and workers who report no union affiliation but whose jobs are covered by a union or an employee association contract.
(3) 2025 annual estimates are 11-month averages that exclude October. Data for October 2025 were not collected due to the federal government shutdown.

Note: Data refer to the sole or principal job of full- and part-time wage and salary workers. All self-employed workers are excluded, both those with incorporated businesses as well as those with unincorporated businesses. Updated population controls are introduced annually with the release of January data.
Dashes indicate data not available.
Source: Current Population Survey
The current population survey is a monthly survey of households conducted by the Bureau of the Census for the Bureau of Labor Statistics.