Union Membership, Coverage, Density and Employment by Occupation: 1991
COC	Occupation	Obs	Employment (in 1000s)	Members (in 1000s)	Covered (in 1000s)	% Mem	% Cov
	EXECUTIVE, ADMINISTRATIVE, AND MANAGERIAL OCCUPATIONS	20,911	11,947	762	970	6.4%	8.1%
3	Legislators	24	9	1	2	15.2%	22.8%
4	Chief executives and general administrators, public admin.	36	21	5	5	22.4%	24.3%
5	Administrators and officials, public administration	961	522	75	107	14.4%	20.4%
6	Administrators, protective services	85	51	7	8	12.8%	14.6%
7	Financial managers	821	452	6	13	1.4%	2.9%
8	Personnel and labor relations managers	195	115	3	5	2.8%	4.3%
9	Purchasing managers	192	112	4	6	4.0%	5.8%
13	Managers, marketing, advertising, and public relations	804	475	6	10	1.3%	2.2%
14	Administrators, education and related fields	942	485	104	133	21.4%	27.3%
15	Managers, medicine and health	324	197	10	13	5.3%	6.5%
16	Managers, properties and real estate	483	291	14	19	5.0%	6.5%
17	Postmasters and mail superintendents	74	35	17	18	48.4%	52.2%
18	Funeral directors	39	22	1	1	5.4%	5.4%
19	Managers and administrators, n.e.c.	9,790	5,605	229	273	4.1%	4.9%
23	Accountants and auditors	2,213	1,302	86	109	6.6%	8.4%
24	Underwriters	159	92	2	3	2.3%	3.7%
25	Other financial officers	1,059	614	21	34	3.5%	5.6%
26	Management analysts	158	95	2	2	2.1%	2.1%
27	Personnel, training, and labor relations specialists	713	422	40	49	9.5%	11.5%
28	Purchasing agents and buyers, farm products	16	8	0	0	0.0%	0.0%
29	Buyers, wholesale and retail trade except farm products	295	173	6	7	3.6%	3.8%
33	Purchasing agents and buyers, n.e.c.	445	239	19	28	8.0%	11.8%
34	Business and promotion agents	25	13	0	0	0.0%	0.0%
35	Construction inspectors	103	62	20	22	31.8%	36.4%
36	Inspectors and compliance officers, exc. construction	404	220	63	75	28.5%	34.0%
37	Management related occupations, n.e.c.	551	315	19	28	6.1%	8.9%
	PROFESSIONAL SPECIALTY OCCUPATIONS	16,573	9,370	1,034	1,303	11.0%	13.9%
43	Architects	144	83	0	2	0.0%	2.1%
44	Aerospace engineers	151	107	11	17	10.2%	15.6%
45	Metallurgical and materials engineers	41	25	2	2	7.3%	9.0%
46	Mining engineers	14	5	0	0	0.0%	0.0%
47	Petroleum engineers	29	13	0	0	0.0%	0.0%
48	Chemical engineers	137	78	1	1	1.3%	1.3%
49	Nuclear engineers	21	10	1	1	7.3%	7.3%
53	Civil engineers	363	214	27	34	12.5%	16.0%
54	Agricultural engineers	7	5	0	0	0.0%	0.0%
55	Electrical and electronic engineers	880	541	31	46	5.6%	8.5%
56	Industrial engineers	320	187	13	18	7.1%	9.6%
57	Mechanical engineers	512	306	18	25	5.9%	8.2%
58	Marine and naval architects engineers	22	13	4	4	31.4%	31.4%
59	Engineers, n.e.c.	432	268	12	15	4.3%	5.5%
63	Surveyors and mapping scientists	40	23	2	2	9.5%	9.9%
64	Computer systems analysts and scientists	1,017	635	23	35	3.6%	5.5%
65	Operations and systems researchers and analysts	337	200	16	22	7.9%	11.2%
66	Actuaries	32	20	0	0	0.0%	0.0%
67	Statisticians	42	25	1	2	3.7%	9.3%
68	Mathematical scientists, n.e.c.	9	7	0	0	3.5%	3.5%
69	Physicists and astronomers	40	24	1	1	4.6%	5.6%
73	Chemists, except biochemists	221	126	11	14	8.6%	10.8%
74	Atmospheric and space scientists	22	13	2	4	11.9%	28.7%
75	Geologists and geodesists	101	56	3	4	5.8%	6.4%
76	Physical scientists, n.e.c.	41	22	0	3	1.8%	14.5%
77	Agricultural and food scientists	48	25	2	2	7.3%	7.3%
78	Biological and life scientists	157	91	9	11	9.5%	12.5%
79	Forestry and conservation scientists	66	24	3	5	12.8%	18.5%
83	Medical scientists	68	40	3	4	6.9%	8.8%
84	Physicians	525	294	16	24	5.5%	8.1%
85	Dentists	34	19	0	0	0.6%	0.6%
86	Veterinarians	34	20	2	2	8.3%	8.3%
87	Optometrists	12	5	1	1	10.2%	10.2%
88	Podiatrists	4	2	0	0	0.0%	0.0%
89	Health diagnosing practitioners, n.e.c.	8	7	0	1	0.0%	16.4%
95	Registered nurses	3,095	1,661	288	343	17.4%	20.7%
96	Pharmacists	277	152	10	15	6.4%	9.7%
97	Dietitians	123	64	5	7	8.4%	10.7%
98	Inhalation therapists	125	71	4	4	5.4%	5.7%
99	Occupational therapists	56	32	2	3	4.8%	10.4%
103	Physical therapists	146	84	3	6	3.8%	7.5%
104	Speech therapists	113	58	19	25	33.2%	43.5%
105	Therapists, n.e.c.	107	59	13	16	22.8%	27.4%
106	Physicians' assistants	113	64	11	15	17.7%	24.1%
	TEACHERS, POSTSECONDARY	1,421	777	131	178	16.8%	23.0%
113	Earth, environmental, and marine science teachers	6	3	0	0	0.0%	0.0%
114	Biological science teachers	55	32	4	6	11.6%	17.9%
115	Chemistry teachers	27	12	2	3	16.5%	21.4%
116	Physics teachers	31	15	4	5	23.3%	32.9%
117	Natural science teachers, n.e.c.	11	7	1	2	22.7%	29.6%
118	Psychology teachers	42	20	4	5	21.5%	24.0%
119	Economics teachers	37	22	2	3	10.2%	14.0%
123	History teachers	26	16	3	3	18.4%	18.4%
124	Political science teachers	18	12	2	3	20.2%	24.8%
125	Sociology teachers	19	11	2	2	17.2%	18.5%
126	Social science teachers, n.e.c.	12	5	3	3	47.1%	56.1%
127	Engineering teachers	45	26	2	4	8.6%	16.3%
128	Mathematical science teachers	85	47	11	14	22.8%	30.2%
129	Computer science teachers	38	20	2	2	11.4%	11.4%
133	Medical science teachers	29	14	3	4	18.0%	25.7%
134	Health specialties teachers	77	43	8	10	18.3%	22.0%
135	Business, commerce, and marketing teachers	51	25	5	7	20.0%	27.0%
136	Agriculture and forestry teachers	13	9	2	2	21.4%	21.4%
137	Art, drama, and music teachers	67	36	7	9	18.4%	23.4%
138	Physical education teachers	11	6	1	2	14.2%	25.1%
139	Education teachers	19	11	4	4	33.3%	37.7%
143	English teachers	115	64	11	16	17.8%	25.4%
144	Foreign language teachers	50	30	6	6	18.6%	20.4%
145	Law teachers	11	6	2	2	29.6%	29.6%
146	Social work teachers	8	4	1	2	29.9%	54.1%
147	Theology teachers	20	10	2	2	22.1%	22.1%
148	Trade and industrial teachers	5	2	0	2	15.0%	79.9%
149	Home economics teachers	3	1	0	0	9.4%	9.4%
153	Teachers, postsecondary, n.e.c.	11	6	1	1	8.4%	16.0%
154	Postsecondary teachers, subject not specified	479	259	36	56	14.0%	21.5%
	TEACHERS, EXCEPT POSTSECONDARY	7,083	3,882	1,860	2,141	47.9%	55.2%
155	Teachers, prekindergarten and kindergarten	769	432	94	109	21.8%	25.3%
156	Teachers, elementary school	2,756	1,520	846	965	55.7%	63.5%
157	Teachers, secondary school	2,279	1,208	685	797	56.7%	66.0%
158	Teachers, special education	512	290	177	204	61.2%	70.2%
159	Teachers, n.e.c.	767	432	57	66	13.1%	15.3%
163	Counselors, educational and vocational	404	217	79	92	36.3%	42.6%
164	Librarians	388	196	53	62	26.9%	31.9%
165	Archivists and curators	35	16	1	1	3.8%	3.8%
166	Economists	182	100	2	5	2.5%	4.9%
167	Psychologists	290	161	30	38	18.6%	23.5%
168	Sociologists	2	1	1	1	84.6%	84.6%
169	Social scientists, n.e.c.	43	26	2	4	7.8%	13.6%
173	Urban planners	28	16	1	1	7.8%	7.8%
174	Social workers	1,062	599	152	181	25.4%	30.1%
175	Recreation workers	188	106	10	12	9.3%	11.5%
176	Clergy	511	277	3	5	1.2%	2.0%
177	Religious workers, n.e.c.	147	79	0	1	0.3%	1.0%
178	Lawyers	750	398	11	21	2.8%	5.3%
179	Judges	63	29	3	3	8.6%	11.0%
183	Authors	25	16	2	2	12.0%	12.0%
184	Technical writers	98	59	3	5	4.6%	7.9%
185	Designers	652	379	21	23	5.6%	6.1%
186	Musicians and composers	138	80	14	15	17.5%	19.2%
187	Actors and directors	102	59	9	9	14.7%	15.6%
188	Painters, sculptors, craft-artists, and artist print-makers	161	93	5	6	5.9%	6.6%
189	Photographers	115	69	7	7	9.9%	10.8%
193	Dancers	23	13	0	1	0.0%	8.5%
194	Artists, performers, and related workers, n.e.c.	88	53	8	9	14.7%	17.3%
195	Editors and reporters	466	246	29	32	11.8%	13.0%
197	Public relations specialists	315	174	10	15	5.5%	8.7%
198	Announcers	104	60	3	5	5.5%	7.9%
199	Athletes	107	65	6	9	9.5%	13.6%
	TECHNICIANS AND RELATED SUPPORT OCCUPATIONS	6,504	3,719	434	529	11.7%	14.2%
203	Clinical laboratory technologists and technicians	589	316	25	35	7.9%	11.1%
204	Dental hygienists	149	85	3	5	4.0%	5.4%
205	Health record technologists and technicians	112	60	7	10	11.5%	16.2%
206	Radiologic technicians	265	141	8	11	5.9%	7.5%
207	Licensed practical nurses	782	445	58	63	13.1%	14.1%
208	Health technologists and technicians, n.e.c.	539	315	29	34	9.4%	10.9%
213	Electrical and electronic technicians	583	344	71	87	20.6%	25.2%
214	Industrial engineering technicians	11	6	1	1	15.1%	15.1%
215	Mechanical engineering technicians	29	18	3	4	16.7%	21.4%
216	Engineering technicians, n.e.c.	390	230	29	35	12.6%	15.4%
217	Drafting occupations	422	252	18	28	7.2%	11.3%
218	Surveying and mapping technicians	114	61	7	8	11.5%	13.0%
223	Biological technicians	113	62	6	6	9.0%	10.3%
224	Chemical technicians	162	85	13	15	15.4%	17.7%
225	Science technicians, n.e.c.	163	87	11	14	12.3%	16.2%
226	Airplane pilots and navigators	164	94	54	55	57.5%	59.0%
227	Air traffic controllers	62	36	13	16	36.7%	45.8%
228	Broadcast equipment operators	38	23	9	10	39.7%	42.1%
229	Computer programmers	898	550	32	45	5.8%	8.1%
233	Tool programmers, numerical control	12	7	1	1	8.1%	8.1%
234	Legal assistants	382	208	7	11	3.5%	5.5%
235	Technicians, n.e.c.	525	296	28	36	9.6%	12.0%
	SALES OCCUPATIONS	19,575	11,370	587	684	5.2%	6.0%
243	Supervisors and proprietors, sales occupations	4,224	2,420	117	132	4.8%	5.5%
253	Insurance sales occupations	690	398	15	23	3.7%	5.9%
254	Real estate sales occupations	682	395	11	15	2.7%	3.7%
255	Securities and financial services sales occupations	427	254	2	5	0.9%	2.1%
256	Advertising and related sales occupations	213	110	2	3	1.7%	2.5%
257	Sales occupations, other business services	890	547	24	29	4.4%	5.4%
258	Sales engineers	42	23	0	0	2.1%	2.1%
259	Sales representatives, mining, manufacturing, and wholesale	2,302	1,361	27	34	2.0%	2.5%
263	Sales workers, motor vehicles and boats	414	233	4	4	1.9%	1.9%
264	Sales workers, apparel	777	450	5	8	1.2%	1.8%
265	Sales workers, shoes	164	97	2	2	2.0%	2.1%
266	Sales workers, furniture and home furnishings	225	137	2	3	1.2%	1.9%
267	Sales workers, radio, TV, hi-fi, and appliances	282	172	0	2	0.3%	1.2%
268	Sales workers, hardware and building supplies	383	219	1	5	0.6%	2.3%
269	Sales workers, parts	255	141	1	4	1.0%	3.1%
274	Sales workers, other commodities	2,381	1,370	41	52	3.0%	3.8%
275	Sales counter clerks	311	186	15	18	7.9%	9.9%
276	Cashiers	4,296	2,503	310	332	12.4%	13.3%
277	Street and door-to-door sales workers	374	216	2	4	1.1%	1.7%
278	News vendors	155	86	3	4	3.7%	5.2%
283	Demonstrators, promoters and models, sales	61	35	2	2	5.0%	6.6%
284	Auctioneers	2	3	0	0	0.0%	0.0%
285	Sales support occupations, n.e.c.	25	14	0	0	0.0%	0.0%
	ADMINISTRATIVE SUPPORT OCCUPATIONS, INCLUDING CLERICAL	30,986	17,815	2,391	2,847	13.4%	16.0%
303	Supervisors, general office	763	443	44	59	10.0%	13.4%
304	Supervisors, computer equipment operators	55	35	0	2	0.0%	4.6%
305	Supervisors, financial records processing	170	106	10	11	9.3%	10.4%
306	Chief communications operators	11	8	0	0	3.1%	3.1%
307	Supervisors; distribution, scheduling, and adjusting clerks	304	182	35	40	19.5%	22.2%
308	Computer operators	1,250	728	84	100	11.6%	13.8%
309	Peripheral equipment operators	11	5	0	0	6.6%	6.6%
313	Secretaries	6,475	3,604	267	347	7.4%	9.6%
314	Stenographers	50	28	3	6	12.0%	20.2%
315	Typists	995	587	76	101	12.9%	17.3%
316	Interviewers	278	161	8	11	5.1%	6.8%
317	Hotel clerks	190	98	2	2	2.4%	2.4%
318	Transportation ticket and reservation agents	199	116	24	26	20.6%	22.2%
319	Receptionists	1,479	867	23	31	2.7%	3.6%
323	Information clerks, n.e.c.	404	240	20	24	8.4%	10.1%
325	Classified-ad clerks	8	5	0	0	0.0%	0.0%
326	Correspondence clerks	27	15	1	1	4.0%	8.4%
327	Order clerks	389	234	62	71	26.6%	30.2%
328	Personnel clerks, except payroll and timekeeping	117	67	4	10	6.7%	14.7%
329	Library clerks	271	155	21	27	13.8%	17.6%
335	File clerks	512	309	30	34	9.7%	11.0%
336	Records clerks	209	127	22	28	17.2%	22.3%
337	Bookkeepers, accounting, and auditing clerks	2,960	1,634	71	93	4.3%	5.7%
338	Payroll and timekeeping clerks	293	179	19	21	10.6%	12.0%
339	Billing clerks	289	165	11	13	6.5%	7.9%
343	Cost and rate clerks	131	83	13	14	15.4%	16.6%
344	Billing, posting, and calculating machine operators	97	59	6	6	10.4%	10.4%
345	Duplicating machine operators	66	37	3	4	8.4%	10.6%
346	Mail preparing and paper handling machine operators	16	9	1	1	6.4%	6.4%
347	Office machine operators, n.e.c.	51	29	3	3	9.3%	11.7%
348	Telephone operators	383	214	77	81	35.7%	37.8%
349	Telegraphers	8	5	1	1	26.8%	26.8%
353	Communications equipment operators, n.e.c.	9	6	1	1	17.1%	17.1%
354	Postal clerks, exc. mail carriers	507	287	215	240	74.9%	83.4%
355	Mail carriers, postal service	586	338	264	282	78.1%	83.4%
356	Mail clerks, exc. postal service	292	184	33	38	18.0%	20.8%
357	Messengers	233	135	7	9	5.0%	6.6%
359	Dispatchers	358	208	49	53	23.5%	25.5%
363	Production coordinators	344	193	27	32	13.8%	16.6%
364	Traffic, shipping, and receiving clerks	898	562	94	108	16.8%	19.2%
365	Stock and inventory clerks	950	565	116	132	20.5%	23.4%
366	Meter readers	85	49	27	29	56.0%	60.4%
368	Weighers, measurers, and checkers	116	64	15	18	23.1%	27.9%
369	Samplers	2	1	0	0	0.0%	0.0%
373	Expediters	253	135	17	24	12.2%	17.6%
374	Material recording, scheduling, & distributing clerks, n.e.c.	39	23	4	4	18.5%	18.5%
375	Insurance adjusters, examiners, and investigators	584	348	13	18	3.8%	5.1%
376	Investigators and adjusters, except insurance	962	560	32	44	5.8%	7.8%
377	Eligibility clerks, social welfare	157	94	24	26	25.4%	27.3%
378	Bill and account collectors	285	167	14	19	8.4%	11.6%
379	General office clerks	1,234	723	102	123	14.1%	17.0%
383	Bank tellers	853	487	10	14	2.2%	2.9%
384	Proofreaders	39	24	1	1	2.2%	6.1%
385	Data-entry keyers	899	536	53	68	9.8%	12.6%
386	Statistical clerks	137	75	14	17	18.5%	22.4%
387	Teachers aides	867	482	146	182	30.4%	37.9%
389	Administrative support occupations, n.e.c.	1,836	1,034	169	195	16.4%	18.8%
	SERVICE OCCUPATIONS, PRIVATE HOUSEHOLD	1,363	807	0	0	0.0%	0.0%
403	Launderers and ironers	3	1	0	0	0.0%	0.0%
404	Cooks, private household	18	12	0	0	0.0%	0.0%
405	Housekeepers and butlers	52	29	0	0	0.0%	0.0%
406	Child care workers, private household	643	369	0	0	0.0%	0.0%
407	Private household cleaners and servants	647	396	0	0	0.0%	0.0%
	SERVICE OCCUPATIONS, PROTECTIVE SERVICE	3,428	2,079	815	887	39.2%	42.7%
413	Supervisors, firefighting and fire prevention occupations	64	40	31	31	76.7%	78.9%
414	Supervisors, police and detectives	154	97	44	49	45.4%	51.1%
415	Supervisors, guards	73	42	3	3	6.4%	6.4%
416	Fire inspection and fire prevention occupations	37	20	5	7	27.2%	33.3%
417	Firefighting occupations	325	199	138	145	69.3%	73.1%
418	Police and detectives, public service	820	494	296	320	60.0%	64.8%
423	Sheriffs, bailiffs, and other law enforcement officers	188	118	55	59	46.2%	49.8%
424	Correctional institution officers	429	270	142	151	52.6%	56.0%
425	Crossing guards	62	37	7	8	17.4%	20.7%
426	Guards and police, exc. public service	1,129	677	95	111	14.0%	16.4%
427	Protective service occupations, n.e.c.	147	86	0	3	0.0%	3.5%
	SERVICE OCCUPATIONS, EXCEPT PROTECTIVE AND HOUSEHOLD	21,196	12,037	1,238	1,390	10.3%	11.5%
433	Supervisors, food preparation and service occupations	566	321	23	28	7.0%	8.6%
434	Bartenders	508	274	14	14	4.9%	4.9%
435	Waiters and waitresses	2,452	1,355	37	41	2.7%	3.0%
436	Cooks, except short order	3,008	1,763	92	109	5.2%	6.2%
437	Short-order cooks	157	90	2	2	1.9%	1.9%
438	Food counter, fountain and related occupations	590	325	4	6	1.2%	1.9%
439	Kitchen workers, food preparation	255	137	15	17	10.9%	12.2%
443	Waiters'/waitresses' assistants	651	407	22	28	5.3%	6.8%
444	Miscellaneous food preparation occupations	1,303	736	91	103	12.4%	14.0%
445	Dental assistants	333	182	3	5	1.8%	2.5%
446	Health aides, except nursing	856	498	60	67	12.1%	13.5%
447	Nursing aides, orderlies, and attendants	2,632	1,491	221	242	14.8%	16.2%
448	Supervisors, cleaning and building service workers	300	181	21	26	11.3%	14.5%
449	Maids and housemen	1,170	652	83	88	12.7%	13.5%
453	Janitors and cleaners	3,532	2,025	405	450	20.0%	22.2%
454	Elevator operators	16	8	2	3	28.7%	35.6%
455	Pest control occupations	53	37	0	0	1.2%	1.2%
456	Supervisors, personal service occupations	80	39	1	1	1.8%	2.1%
457	Barbers	45	30	3	3	8.8%	8.8%
458	Hairdressers and cosmetologists	715	421	8	11	1.9%	2.6%
459	Attendants, amusement and recreation facilities	332	149	6	8	3.8%	5.5%
463	Guides	59	33	1	1	2.1%	2.9%
464	Ushers	34	24	1	2	3.9%	7.2%
465	Public transportation attendants	140	87	59	62	68.2%	71.9%
466	Baggage porters and bellhops	69	42	12	14	29.7%	32.7%
467	Welfare service aides	197	119	9	10	7.6%	8.1%
468	Child care workers, except private household	858	461	29	35	6.3%	7.5%
469	Personal service occupations, n.e.c.	285	151	15	16	9.7%	10.7%
	FARMING, FORESTRY, AND FISHING OCCUPATIONS	3,098	1,855	91	103	4.9%	5.6%
473	Farmers, except horticultural	15	9	0	0	0.0%	0.0%
474	Horticultural specialty farmers	1	1	1	1	100.0%	100.0%
475	Managers, farms, except horticultural	106	58	2	2	2.8%	2.8%
476	Managers, horticultural specialty farms	3	1	0	0	40.0%	40.0%
477	Supervisors, farm workers	52	34	0	1	0.7%	1.7%
479	Farm workers	1,328	756	9	10	1.1%	1.4%
483	Marine life cultivation workers	2	1	0	0	0.0%	0.0%
484	Nursery workers	68	43	1	1	1.4%	1.4%
485	Supervisors, related agricultural occupations	93	56	5	6	8.7%	11.3%
486	Groundskeepers and gardeners, except farm	1,115	720	67	75	9.3%	10.4%
487	Animal caretakers, except farm	125	72	2	3	2.3%	3.9%
488	Graders and sorters, agricultural products	19	13	0	0	0.0%	0.0%
489	Inspectors, agricultural products	2	1	0	0	26.4%	26.4%
494	Supervisors, forestry and logging workers	12	7	0	0	3.9%	3.9%
495	Forestry workers, except logging	30	13	2	2	11.8%	12.7%
496	Timber cutting and logging occupations	87	50	3	3	5.3%	5.3%
497	Captains and other officers, fishing vessels	5	3	0	0	0.0%	2.2%
498	Fishers	33	14	0	0	0.0%	0.0%
499	Hunters and trappers	2	1	0	0	0.0%	0.0%
	PRECISION PRODUCTION, CRAFT, AND REPAIR OCCUPATIONS	13,107	7,655	1,863	2,010	24.3%	26.3%
503	Supervisors, mechanics and repairers	434	242	33	38	13.6%	15.8%
505	Automobile mechanics	1,097	668	45	49	6.7%	7.4%
506	Automobile mechanic apprentices	5	3	0	0	0.0%	0.0%
507	Bus, truck, and stationary engine mechanics	510	291	78	85	26.7%	29.2%
508	Aircraft engine mechanics	196	132	60	66	45.3%	50.2%
509	Small engine repairers	100	59	4	5	7.4%	7.8%
514	Automobile body and related repairers	246	141	7	8	5.0%	5.8%
515	Aircraft mechanics, exc. engine	30	18	11	11	58.6%	58.6%
516	Heavy equipment mechanics	312	166	68	71	40.7%	42.9%
517	Farm equipment mechanics	55	31	1	1	1.6%	1.6%
518	Industry machinery repairers	879	509	170	177	33.4%	34.9%
519	Machinery maintenance occupations	45	25	10	12	42.4%	48.5%
523	Electronic repairers, communications and industrial equipment	238	148	33	38	22.7%	25.8%
525	Data processing equipment repairers	238	140	14	17	9.8%	12.3%
526	Household appliance and power tool repairers	71	46	10	10	22.6%	22.6%
527	Telephone line installers and repairers	99	63	44	45	70.7%	71.8%
529	Telephone Installers and repairers	331	195	126	134	64.6%	69.0%
533	Miscellaneous electrical and electronic equipment repairers	118	71	29	30	40.0%	42.3%
534	Heating, air conditioning, and refrigeration mechanics	338	202	51	55	25.2%	27.3%
535	Camera, watch, and musical instrument repairers	33	19	4	4	22.7%	22.7%
536	Locksmiths and safe repairers	29	15	3	3	18.1%	21.8%
538	Office machine repairers	107	65	3	4	5.3%	6.9%
539	Mechanical controls and valve repairers	38	23	9	9	38.2%	38.2%
543	Elevator installers and repairers	43	27	24	24	88.2%	90.9%
544	Millwrights	132	71	44	46	62.6%	64.5%
547	Specified mechanics and repairers, n.e.c.	635	369	85	95	23.0%	25.7%
549	Not specified mechanics and repairers	336	194	55	59	28.5%	30.5%
	CONSTRUCTION TRADES	6,075	3,632	1,036	1,097	28.5%	30.2%
553	Supervisors; brickmasons, stonemasons, and tile setters	8	6	1	1	18.7%	18.7%
554	Supervisors; carpenters and related workers	36	20	8	9	38.5%	44.0%
555	Supervisors; electricians and power transmission installers	45	26	5	6	20.1%	22.2%
556	Supervisors; painters, paperhangers, and plasterers	9	7	0	0	0.0%	0.0%
557	Supervisors; plumbers, pipefitters, and steamfitters	14	9	4	5	49.2%	53.1%
558	Supervisors; n.e.c.	659	377	87	93	23.1%	24.6%
563	Brickmasons and stonemasons	191	118	38	39	31.9%	33.5%
564	Brickmason and stonemason apprentices	5	4	0	2	0.0%	39.1%
565	Tile setters, hard and soft	52	30	10	11	33.3%	36.2%
566	Carpet installers	105	64	5	6	7.4%	8.9%
567	Carpenters	1,412	851	180	190	21.2%	22.4%
569	Carpenter apprentices	9	5	0	0	7.8%	7.8%
573	Drywall installers	150	92	13	15	14.6%	15.8%
575	Electricians	999	593	251	263	42.4%	44.3%
576	Electrician apprentices	45	24	11	11	46.3%	48.0%
577	Electrical power installers and repairers	207	111	67	68	60.4%	61.3%
579	Painters, construction and maintenance	545	333	51	57	15.2%	17.0%
583	Paperhangers	15	9	0	0	4.3%	4.3%
584	Plasterers	31	18	7	8	38.9%	42.9%
585	Plumbers, pipefitters, and steamfitters	589	356	142	148	39.9%	41.6%
587	Plumber, pipefitter, and steamfitter apprentices	12	6	3	3	43.5%	59.3%
588	Concrete and terrazzo finishers	94	66	14	16	21.6%	24.7%
589	Glaziers	59	32	9	9	27.5%	27.5%
593	Insulation workers	77	47	14	14	29.2%	29.2%
594	Paving, surfacing, and tamping equipment operators	22	14	2	2	17.2%	17.2%
595	Roofers	228	149	23	25	15.6%	17.0%
596	Sheetmetal duct installers	58	39	14	15	37.1%	37.5%
597	Structural metal workers	76	46	32	33	68.6%	71.9%
598	Drillers, earth	25	11	2	2	19.5%	19.5%
599	Construction trades, n.e.c.	298	168	41	46	24.3%	27.1%
613	Supervisors, extractive occupations	91	42	1	3	2.0%	6.3%
614	Drillers, oil well	66	33	2	2	6.0%	6.0%
615	Explosives workers	21	9	3	3	31.0%	31.0%
616	Mining machine operators	63	31	15	17	49.4%	54.3%
617	Mining occupations, n.e.c.	53	26	9	10	34.7%	36.5%
633	Supervisors, production occupations	2,115	1,220	152	174	12.5%	14.3%
634	Tool and die makers	226	134	56	57	41.6%	42.2%
635	Tool and die maker apprentices	5	3	1	1	22.9%	28.9%
636	Precision assemblers, metal	26	17	7	7	41.4%	41.4%
637	Machinists	778	472	142	152	30.1%	32.3%
639	Machinist apprentices	5	2	0	0	12.7%	12.7%
643	Boilermakers	61	36	15	16	42.7%	45.3%
644	Precision grinders, filers, and tool sharpeners	23	11	7	7	58.4%	62.7%
645	Patternmakers and model makers, metal	7	4	2	2	42.0%	42.0%
646	Lay-out workers	14	9	5	5	54.2%	54.2%
647	Precious stones and metals workers (jewelers)	54	25	2	2	6.2%	6.2%
649	Engravers, metal	28	17	3	3	17.1%	17.1%
653	Sheet metal workers	191	114	45	48	39.4%	42.2%
654	Sheet metal worker apprentices	7	5	4	4	70.1%	70.1%
655	Miscellaneous precision metal workers	2	1	0	0	0.0%	0.0%
656	Patternmakers and model makers, wood	5	3	0	0	14.6%	14.6%
657	Cabinet makers and bench carpenters	52	36	3	3	7.8%	7.8%
658	Furniture and wood finishers	47	25	7	7	25.7%	26.8%
659	Miscellaneous precision woodworkers	2	1	0	0	0.0%	0.0%
666	Dressmakers	76	51	2	2	3.6%	4.3%
667	Tailors	65	35	10	10	27.9%	27.9%
668	Upholsterers	75	39	6	6	14.5%	15.5%
669	Shoe repairers	8	3	1	1	25.5%	25.5%
673	Apparel and fabric patternmakers	6	4	1	1	16.6%	16.6%
674	Miscellaneous precision apparel and fabric workers	5	3	0	0	0.0%	0.0%
675	Hand molders and shapers, except jewelers	21	15	4	4	24.3%	24.3%
676	Patternmakers, lay-out workers, and cutters	29	18	4	4	22.1%	22.1%
677	Optical goods workers	106	61	3	3	5.1%	5.1%
678	Dental laboratory and medical appliance technicians	74	44	1	1	1.4%	1.4%
679	Bookbinders	51	33	11	11	32.8%	32.8%
683	Electrical and electronic equipment assemblers	491	304	65	72	21.3%	23.6%
684	Miscellaneous precision workers, n.e.c.	49	28	5	6	18.8%	20.6%
686	Butchers and meat cutters	455	274	85	89	30.9%	32.6%
687	Bakers	198	115	25	27	21.6%	23.9%
688	Food batchmakers	62	35	9	10	26.7%	29.1%
689	Inspectors, testers, and graders	208	118	38	41	32.7%	34.9%
693	Adjusters and calibrators	16	9	3	3	32.8%	32.8%
694	Water and sewage treatment plant operators	95	57	18	21	31.9%	36.7%
695	Power plant operators	84	44	26	26	58.8%	60.0%
696	Stationary engineers	200	104	29	32	28.0%	30.9%
699	Miscellaneous plant and system operators	96	49	18	19	35.7%	38.3%
	MACHINE OPERATORS, ASSEMBLERS, AND INSPECTORS	12,762	7,604	2,009	2,120	26.4%	27.9%
703	Lathe and turning machine set-up operators	47	27	11	11	39.5%	40.0%
704	Lathe and turning machine operators	106	64	19	19	29.8%	30.4%
705	Milling and planing machine operators	16	9	6	6	64.1%	68.6%
706	Punching and stamping press machine operators	179	105	41	43	38.8%	41.5%
707	Rolling machine operators	25	14	10	10	67.8%	70.2%
708	Drilling and boring machine operators	45	29	10	10	34.7%	34.7%
709	Grinding, abrading, buffing, and polishing machine operators	231	134	51	52	38.1%	38.9%
713	Forging machine operators	22	16	8	8	49.3%	49.3%
714	Numerical control machine operators	17	13	3	3	23.3%	23.3%
715	Misc. metal, plastic, stone, & glass working machine operators	65	38	16	17	43.2%	43.7%
717	Fabricating machine operators, n.e.c.	36	21	7	7	34.3%	34.3%
719	Molding and casting machine operators	180	109	27	30	24.3%	27.7%
723	Metal plating machine operators	36	22	6	6	26.4%	26.4%
724	Heat treating equipment operators	28	19	11	11	58.7%	58.7%
725	Miscellaneous metal and plastic processing machine operators	27	15	3	3	22.5%	22.5%
726	Wood lathe, routing, and planing machine operators	18	8	1	1	11.0%	14.3%
727	Sawing machine operators	157	92	13	14	13.9%	14.8%
728	Shaping and joining machine operators	9	6	1	1	10.9%	10.9%
729	Nail and tacking machine operators	4	2	2	2	85.1%	85.1%
733	Miscellaneous woodworking machine operators	42	26	6	6	22.7%	22.7%
734	Printing machine operators	462	290	61	66	21.2%	22.7%
735	Photoengravers and lithographers	56	35	11	11	33.0%	33.0%
736	Typesetters and compositors	123	65	8	10	12.7%	15.6%
737	Miscellaneous printing machine operators	48	31	5	6	16.1%	19.7%
738	Winding and twisting machine operators	140	77	7	8	9.2%	9.9%
739	Knitting, looping, taping, and weaving machine operators	92	48	3	3	5.3%	5.3%
743	Textile cutting machine operators	13	7	0	0	5.4%	5.4%
744	Textile sewing machine operators	1,142	682	104	114	15.3%	16.7%
745	Shoe machine operators	53	31	5	6	14.9%	20.2%
747	Pressing machine operators	215	136	20	22	15.0%	15.9%
748	Laundering and dry cleaning machine operators	315	176	22	24	12.6%	13.9%
749	Miscellaneous textile machine operators	131	76	10	10	13.0%	13.3%
753	Cementing and gluing machine operators	55	29	5	5	15.9%	15.9%
754	Packaging and filling machine operators	760	456	114	120	24.9%	26.4%
755	Extruding and forming machine operators	51	32	11	12	35.3%	37.3%
756	Mixing and blending machine operators	170	98	26	26	26.5%	26.5%
757	Separating, filtering, and clarifying machine operators	98	54	27	27	49.7%	50.0%
758	Compressing and compacting machine operators	37	22	9	9	39.3%	41.7%
759	Painting and paint spraying machine operators	308	187	51	55	27.5%	29.2%
763	Roasting and baking machine operators, food	10	7	3	3	42.3%	42.3%
764	Washing, cleaning, and pickling machine operators	18	11	2	2	17.4%	17.4%
765	Folding machine operators	34	19	4	5	20.3%	23.5%
766	Furnace, kiln, and oven operators, exc. food	181	98	47	49	48.0%	49.5%
768	Crushing and grinding machine operators	77	38	8	8	21.0%	21.3%
769	Slicing and cutting machine operators	311	181	37	41	20.6%	22.5%
773	Motion picture projectionists	13	7	1	1	9.5%	9.5%
774	Photographic process machine operators	135	83	7	8	8.2%	10.0%
777	Miscellaneous machine operators, n.e.c.	1,568	941	325	340	34.5%	36.2%
779	Machine operators, not specified	589	351	109	117	30.9%	33.3%
783	Welders and cutters	878	514	171	179	33.3%	34.9%
784	Solderers and brazers	59	34	4	4	13.2%	13.2%
785	Assemblers	1,816	1,120	343	356	30.6%	31.8%
786	Hand cutting and trimming occupations	28	15	2	3	15.4%	18.3%
787	Hand molding, casting, and forming occupations	30	19	3	4	16.3%	20.4%
789	Hand painting, coating, and decorating occupations	32	19	5	6	27.8%	29.4%
793	Hand engraving and printing occupations	33	25	1	1	5.2%	5.2%
794	Hand grinding and polishing occupations	6	4	0	0	0.0%	0.0%
795	Miscellaneous hand working occupations	85	46	1	1	1.2%	1.2%
796	Production inspectors, checkers, and examiners	1,040	608	155	166	25.5%	27.2%
797	Production testers	90	56	13	15	22.7%	27.3%
798	Production samplers and weighers	19	10	3	3	34.8%	34.8%
799	Graders and sorters, exc. agricultural	151	96	14	14	14.4%	14.4%
	TRANSPORTATION AND MATERIAL MOVING OCCUPATIONS	7,735	4,551	1,284	1,375	28.2%	30.2%
803	Supervisors, motor vehicle operators	119	80	7	10	9.2%	12.5%
804	Truck drivers, heavy	3,025	1,773	425	446	23.9%	25.2%
805	Truck drivers, light	1,075	655	109	118	16.7%	18.0%
806	Driver-sales workers	320	192	42	43	21.9%	22.4%
808	Bus drivers	785	462	170	202	36.9%	43.8%
809	Taxicab drivers and chauffeurs	251	143	21	22	14.6%	15.2%
813	Parking lot attendants	81	50	6	8	11.2%	15.1%
814	Motor transportation occupations, n.e.c.	12	5	3	3	55.3%	55.3%
823	Railroad conductors and yardmasters	72	40	31	31	77.4%	78.3%
824	Locomotive operating occupations	91	47	45	45	96.1%	96.1%
825	Railroad brake, signal, and switch operators	58	24	23	23	94.8%	96.2%
826	Rail vehicle operators, n.e.c.	12	6	6	6	89.8%	89.8%
828	Ship captains and mates, except fishing boats	48	29	8	8	27.0%	28.0%
829	Sailors and deckhands	22	15	7	7	43.8%	43.8%
833	Marine engineers	6	3	2	2	64.2%	91.5%
834	Bridge, lock, and lighthouse tenders	13	8	5	5	63.6%	63.6%
843	Supervisors, material moving equipment operators	25	16	6	6	39.7%	39.7%
844	Operating engineers	401	212	82	85	38.7%	40.1%
845	Longshore equipment operators	2	2	1	1	48.2%	48.2%
848	Hoist and winch operators	42	20	5	6	26.8%	27.6%
849	Crane and tower operators	132	81	48	50	60.1%	62.5%
853	Excavating and loading machine operators	157	87	25	27	29.1%	30.8%
855	Grader, dozer, and scraper operators	146	78	22	22	27.7%	28.7%
856	Industrial truck and tractor equipment operators	703	454	157	167	34.5%	36.7%
859	Miscellaneous material moving equipment operators	137	70	29	32	41.2%	45.9%
	HANDLERS, EQUIPMENT CLEANERS, HELPERS, AND LABORERS	7,743	4,622	1,078	1,156	23.3%	25.0%
863	Supervisors, handlers, equipment cleaners, & laborers, n.e.c.	23	12	2	2	14.3%	19.2%
864	Helpers, mechanics and repairers	48	33	5	5	15.4%	15.4%
865	Helpers, construction trades	177	115	8	8	6.7%	6.7%
866	Helpers, surveyor	11	5	1	1	23.2%	23.2%
867	Helpers, extractive occupations	6	4	3	3	69.7%	69.7%
869	Construction laborers	1,176	709	161	180	22.7%	25.3%
873	Production helpers	111	70	21	24	29.9%	34.0%
875	Garbage collectors	68	42	13	13	30.0%	30.0%
876	Stevedores	33	18	16	16	89.2%	91.1%
877	Stock handlers and baggers	1,593	952	203	218	21.3%	22.9%
878	Machine feeders and offbearers	142	84	24	26	28.5%	31.4%
883	Freight, stock, and material handlers, n.e.c.	1,075	645	220	234	34.1%	36.3%
885	Garage and service station related occupations	378	207	8	9	3.8%	4.5%
887	Vehicle washers and equipment cleaners	333	199	22	25	10.9%	12.7%
888	Hand packers and packagers	481	283	66	67	23.4%	23.7%
889	Laborers, except construction	2,088	1,242	307	324	24.7%	26.1%
Copyright 2025 by Barry T. Hirsch, David A. Macpherson, and William E. Even.  The use of this data requires citation.