We can watch the ebb and flow of union membership from year to year, thanks to the Bureau of Labor Statistics and unionstats.com. And we can watch the ebb and flow of teacher union membership from year to year if I can continue to pry it from a secretive National Education Association and American Federation of Teachers. But there has not been much tracking of how much of a share NEA and AFT have of union membership overall in the United States.

I have put together a table and posted it on the EIA web site that shows the combined active NEA and AFT membership for each state and DC in 2012 and the share it constitutes of active public employee union (PEU) membership and total (public sector + private sector) union membership. It illustrates that teachers’ unions make up the bulk of the public employee labor movement, and a growing percentage of organized labor overall.

* Nationwide, NEA and AFT members comprise 21.2 percent of all union members, and 41.5 percent of PEU members.

* The five states where teacher union members make up the largest share of the total union population are Nebraska, Alabama, North Dakota, Vermont and Idaho.

* The five states where teacher union members make up the smallest share of the total union population are Mississippi, Hawaii, South Carolina, Maine and Texas.

* The five states where teacher union members make up the largest share of the PEU population are Alabama, Nebraska, Idaho, Virginia and North Dakota.

* The five states where teacher union members make up the smallest share of the PEU population are South Carolina, Mississippi, Hawaii, Louisiana and California.

* Teacher union members are more than one-quarter of the total union population in 22 states.

* Teacher union members are more than half of the PEU population in 21 states.

(click for larger version or follow this link)

TeacherUnionShare2012