| Coverage (%) |
| State and local government |
38.7% |
40.3% |
39.4% |
38.8% |
37.9% |
36.8% |
−1.0 |
−1.8 |
| Education |
43.3% |
45.5% |
44.9% |
44.0% |
43.0% |
41.3% |
−1.7 |
−2.0 |
| K-12, Teachers |
59.3% |
62.2% |
61.1% |
59.0% |
58.4% |
55.8% |
−2.6 |
−3.6 |
| K-12, Non-teachers |
37.4% |
38.9% |
38.2% |
38.2% |
37.4% |
36.5% |
−0.9 |
−0.9 |
| Not K-12 |
21.0% |
23.0% |
23.4% |
22.8% |
20.8% |
20.9% |
0.1 |
−0.1 |
| Non-education |
33.8% |
35.1% |
33.8% |
33.8% |
32.9% |
32.4% |
−0.4 |
−1.4 |
| Membership (%) |
| State and local government |
35.4% |
36.8% |
35.9% |
35.2% |
34.5% |
33.6% |
−0.9 |
−1.8 |
| Education |
39.1% |
41.2% |
40.1% |
39.5% |
38.7% |
37.3% |
−1.4 |
−1.9 |
| K-12, Teachers |
54.2% |
56.8% |
55.5% |
54.2% |
53.0% |
51.4% |
−1.6 |
−2.8 |
| K-12, Non-teachers |
33.4% |
34.8% |
33.7% |
33.1% |
33.2% |
31.9% |
−1.4 |
−1.5 |
| Not K-12 |
18.7% |
20.3% |
20.0% |
19.9% |
18.2% |
18.3% |
0.1 |
−0.4 |
| Non-education |
31.4% |
32.4% |
31.5% |
31.1% |
30.4% |
30.0% |
−0.4 |
−1.4 |
| Coverage |
| State and local government |
6,658,000 |
6,759,000 |
6,612,000 |
6,713,000 |
6,607,000 |
6,459,000 |
−149,000 |
−199,000 |
| Education |
3,832,000 |
3,823,000 |
3,798,000 |
3,782,000 |
3,697,000 |
3,592,000 |
−105,000 |
−240,000 |
| K-12, Teachers |
2,292,000 |
2,280,000 |
2,209,000 |
2,195,000 |
2,165,000 |
2,063,000 |
−102,000 |
−229,000 |
| K-12, Non-teachers |
1,121,000 |
1,110,000 |
1,177,000 |
1,178,000 |
1,164,000 |
1,137,000 |
−26,000 |
16,000 |
| Not K-12 |
419,000 |
434,000 |
413,000 |
409,000 |
368,000 |
391,000 |
23,000 |
−27,000 |
| Non-education |
2,826,000 |
2,936,000 |
2,814,000 |
2,931,000 |
2,911,000 |
2,867,000 |
−44,000 |
41,000 |
| Membership |
| State and local government |
6,092,000 |
6,174,000 |
6,014,000 |
6,092,000 |
6,011,000 |
5,891,000 |
−121,000 |
−202,000 |
| Education |
3,465,000 |
3,461,000 |
3,395,000 |
3,393,000 |
3,322,000 |
3,238,000 |
−84,000 |
−227,000 |
| K-12, Teachers |
2,093,000 |
2,085,000 |
2,005,000 |
2,016,000 |
1,964,000 |
1,901,000 |
−63,000 |
−192,000 |
| K-12, Non-teachers |
999,000 |
993,000 |
1,037,000 |
1,020,000 |
1,035,000 |
994,000 |
−41,000 |
−6,000 |
| Not K-12 |
373,000 |
383,000 |
353,000 |
357,000 |
322,000 |
343,000 |
21,000 |
−30,000 |
| Non-education |
2,627,000 |
2,712,000 |
2,618,000 |
2,698,000 |
2,690,000 |
2,653,000 |
−37,000 |
26,000 |
| Total employment |
| State and local government |
17,215,000 |
16,777,000 |
16,773,000 |
17,283,000 |
17,449,000 |
17,538,000 |
89,000 |
323,000 |
| Education |
8,851,000 |
8,410,000 |
8,457,000 |
8,599,000 |
8,590,000 |
8,691,000 |
101,000 |
−160,000 |
| K-12, Teachers |
3,864,000 |
3,667,000 |
3,614,000 |
3,722,000 |
3,707,000 |
3,700,000 |
−7,000 |
−164,000 |
| K-12, Non-teachers |
2,995,000 |
2,853,000 |
3,078,000 |
3,086,000 |
3,115,000 |
3,117,000 |
2,000 |
122,000 |
| Not K-12 |
1,992,000 |
1,889,000 |
1,765,000 |
1,792,000 |
1,768,000 |
1,874,000 |
106,000 |
−118,000 |
| Non-education |
8,363,000 |
8,367,000 |
8,316,000 |
8,683,000 |
8,859,000 |
8,847,000 |
−13,000 |
484,000 |
| Sample size |
| State and local government |
18,401 |
16,498 |
16,077 |
15,357 |
14,719 |
14,672 |
|
|
| Education |
9,479 |
8,322 |
8,090 |
7,714 |
7,296 |
7,272 |
|
|
| K-12, Teachers |
4,149 |
3,595 |
3,400 |
3,294 |
3,092 |
3,063 |
|
|
| K-12, Non-teachers |
3,273 |
2,886 |
2,980 |
2,804 |
2,662 |
2,635 |
|
|
| Not K-12 |
2,057 |
1,841 |
1,710 |
1,616 |
1,542 |
1,574 |
|
|
| Non-education |
8,922 |
8,176 |
7,987 |
7,643 |
7,423 |
7,400 |
|
|