| Coverage (%) |
| State and local government |
38.7% |
40.3% |
39.5% |
38.7% |
37.6% |
37.1% |
37.6% |
0.5 |
−1.1 |
| Education |
43.1% |
45.7% |
44.8% |
43.8% |
42.7% |
42.0% |
41.1% |
−0.9 |
−2.0 |
| K-12, Teachers |
58.6% |
62.6% |
61.1% |
59.0% |
58.4% |
56.5% |
56.0% |
−0.6 |
−2.6 |
| K-12, Non-teachers |
37.9% |
38.9% |
37.9% |
38.0% |
36.6% |
37.1% |
34.3% |
−2.7 |
−3.5 |
| Higher ed and other |
20.9% |
23.2% |
23.5% |
22.3% |
20.6% |
21.8% |
22.1% |
0.3 |
1.2 |
| Non-education |
33.9% |
35.0% |
34.2% |
33.8% |
32.7% |
32.3% |
34.2% |
2.0 |
0.3 |
| Membership (%) |
| State and local government |
35.3% |
36.8% |
35.9% |
35.2% |
34.2% |
33.8% |
34.3% |
0.5 |
−1.1 |
| Education |
38.9% |
41.3% |
40.0% |
39.3% |
38.3% |
38.0% |
37.2% |
−0.8 |
−1.7 |
| K-12, Teachers |
53.5% |
57.1% |
55.4% |
54.1% |
53.0% |
52.3% |
51.2% |
−1.1 |
−2.3 |
| K-12, Non-teachers |
33.8% |
34.9% |
33.5% |
33.1% |
32.5% |
32.5% |
30.8% |
−1.7 |
−3.0 |
| Higher ed and other |
18.5% |
20.1% |
20.1% |
19.5% |
17.9% |
19.2% |
19.6% |
0.4 |
1.1 |
| Non-education |
31.5% |
32.3% |
31.7% |
31.1% |
30.3% |
29.6% |
31.4% |
1.8 |
−0.1 |
| Coverage |
| State and local government |
6,657,000 |
6,750,000 |
6,637,000 |
6,710,000 |
6,569,000 |
6,552,000 |
6,755,000 |
202,000 |
98,000 |
| Education |
3,834,000 |
3,836,000 |
3,793,000 |
3,768,000 |
3,661,000 |
3,685,000 |
3,629,000 |
−56,000 |
−205,000 |
| K-12, Teachers |
2,269,000 |
2,292,000 |
2,206,000 |
2,188,000 |
2,157,000 |
2,099,000 |
2,107,000 |
7,000 |
−163,000 |
| K-12, Non-teachers |
1,148,000 |
1,105,000 |
1,167,000 |
1,179,000 |
1,135,000 |
1,174,000 |
1,130,000 |
−45,000 |
−18,000 |
| Higher ed and other |
417,000 |
439,000 |
419,000 |
401,000 |
369,000 |
411,000 |
393,000 |
−18,000 |
−24,000 |
| Non-education |
2,823,000 |
2,914,000 |
2,844,000 |
2,941,000 |
2,908,000 |
2,867,000 |
3,125,000 |
258,000 |
302,000 |
| Membership |
| State and local government |
6,087,000 |
6,156,000 |
6,027,000 |
6,091,000 |
5,975,000 |
5,961,000 |
6,155,000 |
194,000 |
68,000 |
| Education |
3,464,000 |
3,465,000 |
3,388,000 |
3,383,000 |
3,287,000 |
3,334,000 |
3,289,000 |
−45,000 |
−175,000 |
| K-12, Teachers |
2,072,000 |
2,092,000 |
1,999,000 |
2,007,000 |
1,959,000 |
1,941,000 |
1,928,000 |
−13,000 |
−145,000 |
| K-12, Non-teachers |
1,024,000 |
993,000 |
1,030,000 |
1,026,000 |
1,009,000 |
1,030,000 |
1,012,000 |
−18,000 |
−12,000 |
| Higher ed and other |
368,000 |
381,000 |
358,000 |
350,000 |
319,000 |
363,000 |
349,000 |
−14,000 |
−19,000 |
| Non-education |
2,623,000 |
2,690,000 |
2,639,000 |
2,708,000 |
2,688,000 |
2,627,000 |
2,866,000 |
239,000 |
243,000 |
| Total employment |
| State and local government |
17,219,000 |
16,730,000 |
16,799,000 |
17,317,000 |
17,464,000 |
17,652,000 |
17,962,000 |
310,000 |
742,000 |
| Education |
8,896,000 |
8,399,000 |
8,474,000 |
8,609,000 |
8,583,000 |
8,769,000 |
8,833,000 |
64,000 |
−63,000 |
| K-12, Teachers |
3,874,000 |
3,662,000 |
3,611,000 |
3,711,000 |
3,696,000 |
3,714,000 |
3,765,000 |
51,000 |
−109,000 |
| K-12, Non-teachers |
3,031,000 |
2,844,000 |
3,077,000 |
3,100,000 |
3,099,000 |
3,167,000 |
3,289,000 |
122,000 |
258,000 |
| Higher ed and other |
1,991,000 |
1,894,000 |
1,786,000 |
1,798,000 |
1,788,000 |
1,889,000 |
1,779,000 |
−109,000 |
−212,000 |
| Non-education |
8,323,000 |
8,331,000 |
8,325,000 |
8,708,000 |
8,881,000 |
8,883,000 |
9,129,000 |
246,000 |
805,000 |
| Sample size |
| State and local government |
20,050 |
17,918 |
17,453 |
16,659 |
16,056 |
16,078 |
14,265 |
|
|
| Education |
10,360 |
9,053 |
8,812 |
8,364 |
7,957 |
8,003 |
7,040 |
|
|
| K-12, Teachers |
4,528 |
3,899 |
3,700 |
3,547 |
3,355 |
3,353 |
2,970 |
|
|
| K-12, Non-teachers |
3,590 |
3,133 |
3,225 |
3,065 |
2,906 |
2,912 |
2,630 |
|
|
| Higher ed and other |
2,242 |
2,021 |
1,887 |
1,752 |
1,696 |
1,738 |
1,440 |
|
|
| Non-education |
9,690 |
8,865 |
8,641 |
8,295 |
8,099 |
8,075 |
7,225 |
|
|