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You are here: Home / Unions / The 15 Largest Teachers’ Unions In The United States

May 26, 2025 By Main Admin Leave a Comment

The 15 Largest Teachers’ Unions In The United States

Ever wondered how many teachers unions there are or how many teachers belong to unions? We found this source: The 15 Largest Teachers’ Unions In The United States – Zippia 

However…this second article gives a different mix of the largest teaches unions in the USA: 15 Most Powerful Teachers Unions in the United States

Teachers unions represent the more than 3.2 million full-time teachers in more than 130,000 K-12 schools across the United States. The largest union, the National Education Association (NEA), has 3 million members. About 70% of teachers belong to a teachers union. Unions have influence


Largest Teachers’ Unions Research Summary

  • The largest teachers’ union in the U.S. is the National Education Association, with 3 million members.
  • There are 3.2 million full-time teachers and 130,930 K-12 schools across the U.S.
  • At least 70% of U.S. teachers belong to a teachers’ union.

In many ways, teachers are the roots of any country. They educate our children, watch them while we’re working, and provide mental and moral support for them.

In the United States alone, there are roughly 3.2 million full-time teachers and approximately 130,930 K-12 schools across the nation.

With that in mind, it’s no surprise that there are massive teachers’ unions all across the US, designed to keep teachers protected and provide them with valuable resources. In fact, nearly 70% of all American teachers belong to a teachers’ union.

So who are the largest teachers’ unions in the US? To answer that, we’ve gathered a list of the top 15 largest teachers’ unions, based on their total number of members.

Keep in mind that the National Education Association (NEA) and American Federation of Teachers (AFT) dominate here, so this list includes many of their state-level affiliates.

#1:  NEA

#2:  American Federation of Teachers

#3:  New York State United Teachers 

#4:  The California Teachers Association

#5:  California School Employees Association

#6:  Pennsylvania State Education Association

#7:  New Jersey Education Association

#8:  Florida Education Association

#9:  Illinois Education Association

#10:  Michigan Education Association 

#11:  Ohio Education Association

#12:  Massachusetts Teachers Association

#13:  Education Minnesota

#14:  Maryland State Education Association 

#15:  Texas State Teachers Association

What about Washington State (WEA)?  The Washington Education Association (WEA) is the largest representative of public school employees in Washington state, with over 90,000 members. This makes WEA the largest union in the state, representing a significant portion of public school educators

Filed Under: Unions, WEA Tagged With: teachers

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