UNIONS

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U.S. Union Membership, 1930-2004
Source: Bureau of Labor Statistics, U.S. Dept. of Labor; figures in thousands
Year Total Employed1 % In Unions Union Members2
1930
1935
1940
1945
1950
1955
1960
1965
1970
1975
1980
1985
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
20023
20034
20044
29,424
27,053
32,376
40,394
45,222
50,675
54,234
60,815
70,920
76,945
90,564
94,521
103,905
102,786
103,688
105,067
107,989
110,038
111,960
114,533
116,730
118,963
120,786
122,482
121,826
122,358
123,554
11.6
13.2
26.9
35.5
31.5
33.2
31.4
28.4
27.3
25.5
21.9
18.0
16.1
16.1
15.8
15.8
15.5
14.9
14.5
14.1
13.9
13.9
13.5
13.4
13.3
12.9
12.5
3,401
3,584
8,717
14,322
14,267
16,802
17,049
17,299
19,381
19,611
19,643
16,996
16,740
16,566
16,390
16,598
16,746
16,360
16,269
16,110
16,211
16,477
16,258
16,387
16,145
15,776
15,472
(1) Does not include agricultural employment; from 1985, does not include self-employed or unemployed persons. (2) From 1930 to 1980, includes dues paying members of traditional trade unions, regardless of employment status; after that includes employed only. From 1985, includes members of employee associations that engage in collective bargaining with employers. (3) Revised to incorporate changes to the class of worker status associated with the introduction of the 2002 Census Industry and occupational classification systems Into the Current Population Survey. (4) Data reflect revised population controls used in the household survey.
Labor Union Directory
Source: Bureau of Labor Statistics, U.S. Dept. of Labor; AFL-CIO; World Almanac research.
(#) Member of Change to Win Coalition formed in 2005 by unions disaffiliated from AFL-CIO. (*) Independent union. All others are affiliated with AFL-CIO. Year established in parenthesis
Air Line Pilots Association, (1931)
64,000+ members, 42 airlines
www.alpa.org
American Federation of Labor & Congress of Industrial Organizations (AFL-CIO), (1955)
9 mil. members
www.aflcio.org
Automobile, Aerospace & Agricultural Implement Workers of America, lntenational Union, United (UAW)
(1935); 710,000 active (500,000 ret.) members, 950+ locals
www.uaw.org
Bakery, Confectionery, Tobacco Workers and Grain Millers International Union (BCTGM)
(1886); 120,000 members
www.bctgm.org
Boilermakers, Iron Ship Builders, Blacksmiths, Forgers and Helpers, International Brotherhood of (IBBISBISF&H)
(1880); 100,000+ members. 420 locals
www.boilermakers.org
Bricklayers, and Allied Craftworkers, International Union of (BAC)
(1865); 100,000 members, 200 locals
www.bacweb.org
#Carpenters and Joiners of America, United Brotherhood of,
(1881); 520,000 members, 1,000 locals
www.carpenters.org
#Change to Win Coalition, (2005)
7 Unions, 6 ex-affiliates Unions of AFL-CIO, 1 independent;
www.changetowin.org
*Communications Workers of America (IUE-CWA), (1938)
700,000+ members. 1,200 locals;
www.cwaunion.org
*Education Association, National, (1857)
2.7 mil. members, 14,000+ affiliates;
www.nea.org
Electrical Workers, International Brotherhood of (IBEW), (1891)
750,000 members, 1,019 locals;
www.ibaw.org
Engineers, International Union of Operating (lUOE), (1896)
400,000 members; 170 locals;
www.iuoe.org
#Farm Workers of America, United (UFW), (1962)
27,000+ members;
www.ufw.org
*Federal Employees, Federal District 1, National Federation of (NFFEFD1, IAMAW, AFL.CIO), (1917)
70.000 members, 200 locals;
www.nffe.org
Fire Fighters, International Association of, (1918)
263,000 members. 2,900 locals;
www.iaff.org
Flight Attendants, Association of, (1945)
46,000 members, 22 carriers;
www.afanet.org
#Food and Commercial Workers International Union, United (UFCW), (1979)
1.4 mil. members, 997 locals;
www.ufcw.org
Glass, Molders, Pottery, Plastics & Allied Workers Intl.Union (GIM), (1842)
51,000 members, 290+ locals;
www.gmplu.org
Government Employees, American Federation of (AFGE), (1932)
600,000 members, 1,100 locals;
www.afge.org
Graphic Communications International Union (GCIU), (1983)
150,000 members, 321 locals;
www.gclu.org
Iron Workers, International Association of Bridge, Structural, Ornamental and Reinforcing, (1896)
127,000 members, 225 locals;
www.ironworkers.org
#Laborers' International Union of North America (LIUNA), (1903)
800,000 members, 500 locals;
www.liuna.org
Letter Carriers, National Association of (NALC), (1889)
300,000+ members, 2,500+ locals;
www.nalc.org
Locomotive Engineers and Trainmen, Brotherhood of (BLET), (1863)
59,000 members. 600+ divisions;
www.ble.org
Longshoremen's Association, International (ILA), (1892)
65,000 members;
www.ilaunion.org. ­
Machinists and Aerospace Workers, International Asociation of (IAMAW), (1888)
614,000 members, 1,174 locals;
www.iamaw.org
Maintenance of Way Employees, Brotherhood of (BMWE), (1887)
45,000 members, 770 locals;
www.bmwe.org
Mine Workers of America, United (UMWA), (1890)
110,000 members, 800 locals;
www.umwa.org    ­
Musicians of the United States and Canada, American Federation of (AFM), (1896)
125,000 members, 250+ locals;
www.afm.org
Newspaper Guild-Communicatlons Workers of America (CWA), The, (1933)
34,000 members, 90 locals; 
www.newsguild.org
*Nurses Association, American (ANA), (1897)
2,6 mil. members, 54 constituent state & territorial assns;
www.nursingworld.org
Office and Professional Employees International Union (OPElU), (1945)
145,000 members, 200 locals;
www.opeiu.org
PACE International Union, AFL-CIO, CLC (PACE), (1884)
320.000 members, 1.500 locals;
www.paceunion.org
Painters and Allied Trades, International Union of (IUPAT), (1887)
140,000 members, 425 locals;
www.ibpatorg
Plumbing and Pipe Fitting Industry of the United States and Canada, United Association of Journeymen and Appren­tices of the, (1889) 326.000 members, 321 locals;
www.ua.org
*Police, National Fraternal Order of, 321,000 members, 2,100+ affiliates;
www.grandlodgefop.org
Police Associations, International Union of, (1979)
80.000 members; 500 locals;
www.iupa.org
Postal Workers Union, American (APWU), (1971)
333,000 members, 1,600+ locals;
www.apwu.org
Roofers, Waterproofers & Allied Workers, United Union of, (1906)
22,000 members;
www.unionroofers.com
*Rural Letter Carriers' Association, National, (1903)
100,000+ members; 50 state org;
www.nrlca.org
Seafarers International Union of North America (SIU), (1938)
80,000 members, 18 affiliates;
www.seafarers.org ­
*Security, Police, and Fire Professionals of America (SPFPA), (1946)
12,000 members, 200 locals;
www.spfpa.org
#Service Employees International Union (SEIU), (1921)
1.6 million members, 350 locals;
www.seiu.org
Sheet Metal Workers' International Association (SMWIA), (1888)
150,000 members, 194 locals;
www.smwia.org
State, County, and Municipal Employees, American Federation of (AFSCME)
1.4 mil. members, 3.617 locals;
www.afscme.org
Steelworkers of America, United (USWA), (1936)
1.2 mil.members, 1,800 locals;
www.uswa.org
Teachers, American Federation of (AFT), (1916)
1.3 mil. members, 3,000 locals;
www.aft.org
#Teamsters, International Brotherhood of (IBT), (1903)
1.4 mil. members, 521 locals;
www.teamsters.org
Television and Radio Artists, American Federation of, (AFTRA), (1937)
80,000 members, 33 locals;
www.aftra.org .
Theatrical Stage Employees, Moving Picture Technicians, Artists and Allied Crafts of the United States, Its Territories, and Canada,International Alliance of (IATSE), (1893); 105,000+ members, 555+ locals; www.iatse-intl.org
Transit Union, Amalgamated (ATU), (1892)
180,000+ members, 273 locals;
www.atu.org
Transportation-Communications International Union (TCU), (1899)
100,000 members;
www.tcunion.org
Transportation Union, United (UTU), (1969)
125,000 members, 660 locals;
www.utu.org
Transport Workers Union of America, (1934)
110,000 members, 92 locals;
www.twu.org
*Treasury Employees Union, National (NTEU), (1938)
150,000+ represented, 270+ chapters;
www.nteu.org
#UNITE HERE, UNITE, (1900), HERE, (1891)
Unions merged 2004; 440,000+ members,
www.unitehere.org


Work Stoppages (Strikes and Lockouts) in the U. S., 1950-20041
Source: Bureau of Labor Statistics, U.S. Dept. of Labor;  involving 1,000 workers or more
Year Number Workers Days Idle
1950
1955
1960
1965
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
424
363
222
268
381
298
250
317
424
235
231
298
219
235
187
145
96
81
62
54
69
46
40
51
44
40
35
35
45
31
37
29
34
17
39
29
19
14
17
1,698
2,055
896
999
2,468
2,516
975
1,400
1,798
965
1,519
1,212
1,006
1,021
795
729
656
909
376
324
533
174
118
452
185
392
364
182
322
192
273
339
367
73
394
99
46
129
171
30,930
21,180
13,260
15,140
52,761
35,538
16,764
16,260
31,809
17,563
23,962
21,258
23,774
20,409
20,844
16,908
9,061
17,461
8,499
7,079
11,861
4,481
4,381
16,996
5,926
4,564
3,989
3,981
5,020
5,771
4,889
4,497
5,116
1,996
20,419
1,151
660
4,091
3,344
(1) Numbers cover stoppages that began in the year indicated. Workers are counted more than once if they are involved in more than 1 stoppage during the year. For work stoppages still open at the end of a calendar year, days idle include only the days for the calendar year.

Union Affiliation and Median Weekly Earnings of Wage and Salary Workers in the U.S., 1996, 2004
Source: Bureau of Labor Statistics, U.S.. Dept. of Labor

1996
2004
Sex and Age
Total Members
of unions
1
Represented
by unions
2
Non-union Total Members
of unions1
Represented
by unions2
Non-union
Total 16 years and older
16 to 24 years
25 to 34 years
35 to 44 years
45 to 54 years
55 to 64 years
65 years and older
$490
298
463
559
594
535
384
$615
371
554
636
687
620
510
$610
362
548
632
666
616
510
$462
294
447
530
552
505
357
$638
390
604
713
743
725
560
$781
498
724
813
834
835
728
$776
494
717
608
831
835
744
$612
385
590
690
718
693
520
Men 16 years and older
16 to 24 years:
25 to 34 years
35 to 44 years
45 to 54 years
55 to 64 years
65 years and older
557
307
499
832
698
843
477
653
375
591
683
718
667
589
651
369
587
683
721
684
593
520
303
465
617
662
633
424
713
400
639
804
857
843
841
829
504
751
868
878
870
753
828
496
748
885
881
877
776
685
395
620
787
847
829
620
Women 16 years and older
16 to 24 years
25 to 34 years
35 to 44 Years
45 to 54 years
55 to 64 Years
65 Years and older
418
284
415
463
481
420
334
549
358
497
561
620
524
417
543
339
495
556
616
523
413
398
280
405
439
445
395
321
573
375
561
608
625
615
478
723
487
678
735
758
767
687
719
491
665
733
755
767
733
541
370
541
590
604
592
455
Note: Data refer to the sole or principal job of full-time workers. Excluded are self-employed workers regardless of whether or not their businesses are incorporated. (1) Including members of an employee association similar to a union. (2) including members of a labor union or employee association similar to a union and others whose jobs are covered by a union or an employee-associatiocontract.