Percentage of public school teachers who indicated that they were members of a union or an employee association similar to a union, by state: 2017–18

State	Member of a union or employee association
United States	69.4
Alabama	73.0
Alaska	86.0
Arizona	31.0
Arkansas	26.1
California	90.7
Colorado	57.2
Connecticut	97.0
Delaware	89.2
District of Columbia	‡
Florida	52.5
Georgia	51.3
Hawaii	96.6
Idaho	49.9
Illinois	96.3
Indiana	65.4
Iowa	71.0
Kansas	51.2
Kentucky	56.7
Louisiana	51.6
Maine	77.6
Maryland	‡
Massachusetts	92.5
Michigan	84.7
Minnesota	92.5
Mississippi	33.9
Missouri	74.1
Montana	86.3
Nebraska	77.0
Nevada	57.6
New Hampshire	84.1
New Jersey	95.7
New Mexico	43.4
New York	97.4
North Carolina	19.9
North Dakota	73.6
Ohio	91.7
Oklahoma	59.4
Oregon	93.1
Pennsylvania	92.2
Rhode Island	88.9
South Carolina	23.0
South Dakota	41.8
Tennessee	43.5
Texas	51.4
Utah	46.9
Vermont	93.6
Virginia	43.3
Washington	96.7
West Virginia	73.9
Wisconsin	48.0
Wyoming	49.7
‡ Reporting standards not met. The response rate is below 50 percent.
SOURCE: U.S. Department of Education, National Center for Education Statistics, National Teacher and Principal Survey (NTPS), "Public School Teacher Data File," 2017–18.

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