| Coverage (%) |
| State and local government |
38.4% |
40.2% |
39.6% |
39.3% |
37.6% |
−1.6 |
−0.8 |
| Education |
43.0% |
44.8% |
45.4% |
44.4% |
42.4% |
−2.1 |
−0.6 |
| K-12, Teachers |
58.7% |
60.8% |
62.0% |
59.7% |
57.8% |
−1.9 |
−0.9 |
| K-12, Non-teachers |
37.2% |
39.2% |
38.3% |
38.4% |
37.0% |
−1.5 |
−0.3 |
| Not K-12 |
20.8% |
22.7% |
23.9% |
23.2% |
20.1% |
−3.1 |
−0.7 |
| Non-education |
33.7% |
35.3% |
33.7% |
34.1% |
33.0% |
−1.0 |
−0.6 |
| Membership (%) |
| State and local government |
35.2% |
36.6% |
36.0% |
35.5% |
34.2% |
−1.3 |
−1.0 |
| Education |
39.0% |
40.3% |
40.7% |
39.7% |
38.2% |
−1.5 |
−0.8 |
| K-12, Teachers |
54.0% |
55.3% |
56.4% |
54.5% |
52.4% |
−2.1 |
−1.6 |
| K-12, Non-teachers |
33.1% |
34.9% |
34.2% |
33.2% |
33.3% |
0.1 |
0.2 |
| Not K-12 |
18.5% |
19.8% |
20.1% |
20.3% |
17.6% |
−2.7 |
−0.9 |
| Non-education |
31.3% |
32.7% |
31.2% |
31.4% |
30.4% |
−1.0 |
−0.9 |
| Coverage |
| State and local government |
6,616,000 |
6,795,000 |
6,627,000 |
6,746,000 |
6,564,000 |
−182,000 |
−52,000 |
| Education |
3,769,000 |
3,853,000 |
3,826,000 |
3,830,000 |
3,634,000 |
−196,000 |
−136,000 |
| K-12, Teachers |
2,246,000 |
2,272,000 |
2,241,000 |
2,217,000 |
2,119,000 |
−98,000 |
−127,000 |
| K-12, Non-teachers |
1,121,000 |
1,134,000 |
1,159,000 |
1,195,000 |
1,157,000 |
−38,000 |
36,000 |
| Not K-12 |
402,000 |
446,000 |
427,000 |
419,000 |
358,000 |
−61,000 |
−44,000 |
| Non-education |
2,847,000 |
2,942,000 |
2,801,000 |
2,916,000 |
2,931,000 |
14,000 |
84,000 |
| Membership |
| State and local government |
6,064,000 |
6,186,000 |
6,028,000 |
6,106,000 |
5,972,000 |
−134,000 |
−91,000 |
| Education |
3,418,000 |
3,463,000 |
3,434,000 |
3,418,000 |
3,275,000 |
−143,000 |
−143,000 |
| K-12, Teachers |
2,064,000 |
2,066,000 |
2,039,000 |
2,020,000 |
1,920,000 |
−100,000 |
−143,000 |
| K-12, Non-teachers |
997,000 |
1,009,000 |
1,036,000 |
1,032,000 |
1,041,000 |
9,000 |
44,000 |
| Not K-12 |
358,000 |
389,000 |
359,000 |
366,000 |
314,000 |
−52,000 |
−44,000 |
| Non-education |
2,646,000 |
2,722,000 |
2,595,000 |
2,688,000 |
2,697,000 |
9,000 |
52,000 |
| Total employment |
| State and local government |
17,223,000 |
16,920,000 |
16,734,000 |
17,185,000 |
17,446,000 |
261,000 |
224,000 |
| Education |
8,770,000 |
8,596,000 |
8,429,000 |
8,621,000 |
8,578,000 |
−43,000 |
−192,000 |
| K-12, Teachers |
3,823,000 |
3,737,000 |
3,613,000 |
3,710,000 |
3,666,000 |
−44,000 |
−158,000 |
| K-12, Non-teachers |
3,012,000 |
2,891,000 |
3,027,000 |
3,108,000 |
3,129,000 |
21,000 |
117,000 |
| Not K-12 |
1,935,000 |
1,968,000 |
1,789,000 |
1,804,000 |
1,784,000 |
−20,000 |
−152,000 |
| Non-education |
8,452,000 |
8,324,000 |
8,305,000 |
8,564,000 |
8,868,000 |
304,000 |
416,000 |
| Sample size |
| State and local government |
20,168 |
18,343 |
17,642 |
16,739 |
16,004 |
|
|
| Education |
10,342 |
9,347 |
8,877 |
8,470 |
7,920 |
|
|
| K-12, Teachers |
4,520 |
4,056 |
3,721 |
3,597 |
3,326 |
|
|
| K-12, Non-teachers |
3,603 |
3,200 |
3,243 |
3,086 |
2,912 |
|
|
| Not K-12 |
2,219 |
2,091 |
1,913 |
1,787 |
1,682 |
|
|
| Non-education |
9,826 |
8,996 |
8,765 |
8,269 |
8,084 |
|
|