in the united states which type of workers are the most likely to be unionized ​
Labor unions in the United States In the 21st century the most prominent unions are among public sector employees such as city employees, government workers, teachers and police. Members of unions are disproportionately older, male, and residents of the Northeast, the Midwest, and California.[4] Union workers average 10-30% higher pay than non-union in the United States after controlling for individual, job, and labor market characteristics.[5]
Labor unions in the United States Unions began forming in the mid-19th century in response to the social and economic impact of the industrial revolution. National labor unions began to form in the post-Civil War Era. The Knights of Labor emerged as a major force in the late 1880s, but it collapsed because of poor organization, lack of effective leadership, disagreement over goals, and strong opposition from employers and government forces.