Union Membership, Coverage, Density and Employment by Industry: 1991
CIC	Industry	Obs	Employment (in 1000s)	Members (in 1000s)	Covered (in 1000s)	% Mem	% Cov
	AGRICULTURE	2,056	1,183	20	23	1.7%	1.9%
10	Agricultural production, crops	892	559	9	11	1.7%	1.9%
11	Agricultural production, livestock	830	419	6	6	1.4%	1.5%
20	Agricultural services, exc. horticultural	334	206	5	5	2.3%	2.6%
	FORESTRY AND FISHERIES	795	489	16	20	3.4%	4.2%
21	Horticultural services	557	391	12	13	3.2%	3.4%
30	Forestry	165	61	4	7	6.5%	11.5%
31	Fishing, hunting, and trapping	73	36	0	0	0.0%	0.2%
	MINING	10,093	5,851	1,244	1,338	21.3%	22.9%
40	Metal mining	162	60	16	20	27.4%	33.2%
41	Coal mining	280	134	47	50	35.3%	37.2%
42	Crude petroleum and natural gas extraction	696	377	14	17	3.6%	4.4%
50	Nonmetallic mining and quarrying, exc. fuel	214	106	23	27	22.1%	25.9%
60	CONSTRUCTION	8,741	5,175	1,144	1,224	22.1%	23.6%
	MANUFACTURING, NONDURABLE GOODS	14,209	8,276	1,487	1,605	18.0%	19.4%
100	Meat products	813	462	92	100	19.9%	21.6%
101	Dairy products	260	144	36	39	25.3%	27.3%
102	Canned and preserved fruits and vegetables	400	207	61	63	29.6%	30.5%
110	Grain mill products	261	146	30	35	20.9%	24.3%
111	Bakery products	357	209	67	72	32.1%	34.2%
112	Sugar and confectionery products	196	108	34	35	31.5%	32.6%
120	Beverage industries	342	236	58	62	24.6%	26.0%
121	Miscellaneous food preparations and kindred products	315	184	38	42	20.9%	22.7%
122	Not specified food industries	7	4	2	2	52.5%	52.5%
130	Tobacco manufacturers	96	57	16	17	28.2%	29.9%
132	Knitting mills	251	118	7	7	6.2%	6.2%
140	Dyeing and finishing textiles, exc. wool and knit goods	50	26	4	4	13.7%	13.7%
141	Floor coverings, exc. hard surface	70	58	2	2	3.1%	3.9%
142	Yarn, thread, and fabric mills	807	438	30	36	7.0%	8.1%
150	Miscellaneous textile mill products	76	40	4	4	9.4%	10.3%
151	Apparel and accessories, exc. knit	1,450	879	130	144	14.8%	16.3%
152	Miscellaneous fabricated textile products	253	135	18	18	13.3%	13.4%
160	Pulp, paper, and paperboard mills	563	321	159	164	49.4%	51.0%
161	Miscellaneous paper and pulp products	308	193	49	51	25.5%	26.3%
162	Paperboard containers and boxes	345	218	75	81	34.2%	37.0%
171	Newspaper publishing and printing	893	484	68	73	14.1%	15.2%
172	Printing, publishing, allied industries, exc. newspapers	1,979	1,207	122	135	10.1%	11.2%
180	Plastics, synthetics, and resins	266	151	18	20	12.0%	13.0%
181	Drugs	524	303	28	30	9.1%	10.0%
182	Soaps and cosmetics	312	183	22	23	11.9%	12.7%
190	Paints, varnishes, and related products	111	67	10	11	15.5%	16.7%
191	Agricultural chemicals	99	53	7	7	12.4%	12.9%
192	Industrial and miscellaneous chemicals	1,027	581	102	113	17.5%	19.4%
200	Petroleum refining	261	165	49	53	29.8%	32.4%
201	Miscellaneous petroleum and coal products	37	23	5	6	23.2%	28.4%
210	Tires and inner tubes	137	80	28	30	35.3%	36.8%
211	Other rubber products, plastics footwear and belting	230	128	25	25	19.2%	19.5%
212	Miscellaneous plastics products	869	524	66	73	12.7%	14.0%
220	Leather tanning and finishing	23	13	5	5	35.0%	35.0%
221	Footwear, exc. rubber and plastic	146	87	12	16	13.5%	18.7%
222	Leather products, exc. footwear	75	42	6	7	15.1%	17.5%
	MANUFACTURING, DURABLE GOODS	19,233	11,598	2,530	2,723	21.8%	23.5%
230	Logging	174	97	5	6	4.9%	6.0%
231	Sawmills, planing mills, and millwork	570	350	64	69	18.4%	19.6%
232	Wood buildings and mobile homes	84	59	1	2	2.2%	2.9%
241	Miscellaneous wood products	212	121	14	16	11.9%	13.0%
242	Furniture and fixtures	1,035	598	85	92	14.2%	15.5%
250	Glass and glass products	271	158	60	61	38.1%	38.7%
251	Cement, concrete, gypsum, and plaster products	302	181	40	42	22.2%	22.9%
252	Structural clay products	65	42	9	10	21.7%	23.2%
261	Pottery and related products	73	40	10	10	24.7%	24.7%
262	Miscellaneous nonmetallic mineral and stone products	210	123	26	26	20.9%	21.3%
270	Blast furnaces, steelworks, rolling and finishing mills	589	369	185	191	50.1%	51.7%
271	Iron and steel foundries	153	103	33	36	31.9%	34.5%
272	Primary aluminum industries	216	133	48	50	36.3%	37.9%
280	Other primary metal industries	345	182	47	49	26.0%	26.8%
281	Cutlery, handtools, and other hardware	172	108	23	24	20.9%	21.9%
282	Fabricated structural metal products	729	444	94	99	21.2%	22.3%
290	Screw machine products	100	65	14	14	21.6%	21.6%
291	Metal forgings and stampings	198	117	44	46	37.4%	38.9%
292	Ordnance	148	88	28	32	32.3%	36.3%
300	Miscellaneous fabricated metal products	508	323	83	85	25.6%	26.4%
301	Not specified metal industries	4	3	0	0	0.0%	0.0%
310	Engines and turbines	118	86	39	42	45.8%	49.5%
311	Farm machinery and equipment	198	102	29	31	28.7%	30.5%
312	Construction and material handling machines	349	216	53	57	24.5%	26.4%
320	Metalworking machinery	477	264	33	36	12.5%	13.5%
321	Office and accounting machines	121	74	4	5	6.0%	7.3%
322	Electronic computing equipment	1,070	628	18	26	2.8%	4.1%
331	Machinery, exc. electrical, n.e.c.	1,598	974	156	165	16.0%	16.9%
332	Not specified machinery	4	2	0	0	0.0%	0.0%
340	Household appliances	234	142	45	48	31.6%	34.1%
341	Radio, T.V., and communication equipment	654	408	46	52	11.2%	12.7%
342	Electrical machinery, equipment, and supplies, n.e.c.	2,216	1,363	200	221	14.7%	16.2%
350	Not specified electrical machinery, equipment, and supplie	27	19	1	1	5.7%	5.7%
351	Motor vehicles and motor vehicle equipment	1,839	1,056	523	541	49.5%	51.2%
352	Aircraft and parts	862	604	191	221	31.6%	36.5%
360	Ship and boat building and repairing	410	242	77	89	32.0%	36.7%
361	Railroad locomotives and equipment	53	34	13	13	37.8%	38.4%
362	Guided missiles, space vehicles, and parts	605	398	66	79	16.5%	19.8%
370	Cycles and miscellaneous transportation equipment	82	50	8	9	17.0%	18.1%
371	Scientific and controlling instruments	445	263	27	29	10.1%	10.9%
372	Optical and health services supplies	632	384	22	23	5.7%	6.0%
380	Photographic equipment and supplies	223	119	9	13	7.5%	11.2%
381	Watches, clocks, and clockwork operated devices	20	11	3	3	28.9%	28.9%
390	Toys, amusement, and sporting goods	208	116	17	17	14.8%	14.8%
391	Miscellaneous manufacturing industries	572	308	32	40	10.5%	12.9%
392	Not specified manufacturing industries	58	32	4	5	12.3%	14.6%
	TRANSPORTATION	7,924	4,597	1,830	1,957	39.8%	42.6%
400	Railroads	561	285	223	226	78.4%	79.3%
401	Bus service and urban transit	776	459	200	215	43.5%	46.8%
402	Taxicab service	119	65	5	5	8.4%	8.4%
410	Trucking service	2,783	1,624	399	429	24.6%	26.4%
411	Warehousing and storage	220	131	19	21	14.9%	16.3%
412	U.S. Postal Service	1,513	866	638	697	73.7%	80.5%
420	Water transportation	283	172	53	56	30.8%	32.4%
421	Air transportation	1,150	704	261	275	37.1%	39.1%
422	Pipe lines, exc. natural gas	40	19	2	2	10.3%	10.3%
432	Services incidental to transportation	479	271	28	30	10.5%	11.1%
	COMMUNICATIONS	2,652	1,563	513	573	32.8%	36.7%
440	Radio and television broadcasting	463	256	23	29	9.2%	11.2%
441	Telephone (wire and radio)	1,860	1,111	472	525	42.4%	47.3%
442	Telegraph and miscellaneous communications services	329	195	18	19	9.2%	9.9%
	UTILITIES AND SANITARY SERVICES	2,768	1,555	526	566	33.9%	36.4%
460	Electric light and power	1,307	707	266	281	37.6%	39.7%
461	Gas and steam supply systems	357	186	56	59	30.0%	31.5%
462	Electric and gas, and other combinations	285	177	68	77	38.2%	43.1%
470	Water supply and irrigation	353	205	55	64	26.9%	31.2%
471	Sanitary services	452	270	80	85	29.7%	31.4%
472	Not specified utilities	14	10	1	1	13.9%	13.9%
	WHOLESALE TRADE	6,840	4,050	284	312	7.0%	7.7%
500	Motor vehicles and equipment	322	196	13	15	6.5%	7.7%
501	Furniture and home furnishings	84	48	2	2	3.7%	3.7%
502	Lumber and construction materials	268	162	15	17	9.6%	10.5%
510	Sporting goods, toys, and hobby goods	73	43	2	2	4.3%	4.3%
511	Metals and minerals, exc. petroleum	127	81	10	11	12.8%	13.8%
512	Electrical goods	456	281	9	10	3.1%	3.7%
521	Hardware, plumbing and heating supplies	368	211	8	10	3.7%	4.7%
530	Machinery, equipment, and supplies	1,595	950	29	34	3.0%	3.5%
531	Scrap and waste materials	222	139	11	11	7.8%	7.8%
532	Miscellaneous wholesale, durable goods	106	64	3	3	5.0%	5.0%
540	Paper and paper products	219	122	7	7	5.6%	5.6%
541	Drugs, chemicals, and allied products	347	214	6	7	2.9%	3.4%
542	Apparel, fabrics, and notions	191	106	10	13	9.4%	12.4%
550	Groceries and related products	1,215	749	118	127	15.7%	16.9%
551	Farm products - raw materials	195	88	1	1	1.1%	1.3%
552	Petroleum products	258	138	5	5	3.8%	3.9%
560	Alcoholic beverages	192	120	24	26	20.0%	21.3%
561	Farm supplies	213	118	3	3	2.3%	2.7%
562	Miscellaneous wholesale, nondurable goods	374	213	8	8	3.8%	3.8%
571	Not specified wholesale trade	15	7	0	0	0.0%	0.0%
	RETAIL TRADE	29,880	17,441	1,154	1,279	6.6%	7.3%
580	Lumber and building material retailing	782	449	17	25	3.7%	5.6%
581	Hardware stores	328	181	3	5	1.4%	2.6%
582	Retail nurseries and garden stores	123	73	0	0	0.0%	0.5%
590	Mobile home dealers	32	18	0	0	0.0%	0.0%
591	Department stores	3,513	2,068	106	123	5.1%	5.9%
592	Variety stores	241	135	3	5	2.1%	3.8%
600	Miscellaneous general merchandise stores	196	102	4	4	3.4%	4.1%
601	Grocery stores	4,822	2,783	733	768	26.3%	27.6%
602	Dairy products stores	88	47	3	3	6.2%	7.2%
610	Retail bakeries	222	131	10	11	7.6%	8.7%
611	Food stores, n.e.c.	231	139	6	6	4.2%	4.6%
612	Motor vehicle dealers	1,604	938	36	40	3.8%	4.3%
620	Auto and home supply stores	636	385	8	13	2.0%	3.5%
621	Gasoline service stations	677	376	2	4	0.5%	1.0%
622	Miscellaneous vehicle dealers	143	81	3	3	3.2%	3.2%
630	Apparel and accessory stores, exc. shoe	1,272	760	19	24	2.5%	3.2%
631	Shoe stores	238	141	3	4	1.8%	3.0%
632	Furniture and home furnishings stores	697	435	11	14	2.6%	3.1%
640	Household appliances, TV, and radio stores	718	439	7	11	1.5%	2.4%
641	Eating and drinking places	9,292	5,460	108	123	2.0%	2.2%
642	Drug stores	926	531	27	33	5.0%	6.3%
650	Liquor stores	184	105	6	6	5.6%	6.1%
651	Sporting goods, bicycles, and hobby stores	437	251	9	10	3.6%	3.8%
652	Book and stationery stores	305	164	4	6	2.1%	3.7%
660	Jewelry stores	222	124	1	1	0.6%	0.6%
661	Sewing, needlework, and piece goods stores	90	44	0	0	0.0%	0.0%
662	Mail order houses	177	117	7	7	5.6%	5.6%
670	Vending machine operators	108	62	8	8	12.1%	13.0%
671	Direct selling establishments	162	97	1	2	0.6%	1.9%
672	Fuel and ice dealers	192	103	7	10	7.1%	9.4%
681	Retail florists	248	136	0	1	0.0%	0.5%
682	Miscellaneous retail stores	945	549	6	10	1.2%	1.7%
691	Not specified retail trade	29	17	0	0	0.0%	0.0%
	FINANCE, INSURANCE, AND REAL ESTATE	11,973	6,945	220	286	3.2%	4.1%
700	Banking	3,602	2,029	36	55	1.8%	2.7%
701	Savings and loan associations	200	114	5	5	4.2%	4.5%
702	Credit agencies, n.e.c.	919	523	14	16	2.7%	3.0%
710	Security, commodity brokerage, and investment companies	894	531	10	13	1.9%	2.4%
711	Insurance	3,737	2,171	61	93	2.8%	4.3%
712	Real estate, including real estate-insurance-law offices	2,621	1,577	94	103	5.9%	6.5%
	BUSINESS AND REPAIR SERVICES	9,347	5,678	240	289	4.2%	5.1%
721	Advertising	328	190	8	8	4.2%	4.2%
722	Services to dwellings and other buildings	935	579	57	66	9.8%	11.3%
730	Commercial research, development, and testing labs	526	268	15	17	5.5%	6.4%
731	Personnel supply services	988	602	12	20	1.9%	3.4%
732	Business management and consulting services	675	398	7	9	1.8%	2.2%
740	Computer and data processing services	1,147	734	10	15	1.3%	2.0%
741	Detective and protective services	604	391	31	39	8.0%	9.9%
742	Business services, n.e.c.	1,814	1,097	28	35	2.6%	3.2%
750	Automotive services, exc. repair	577	360	27	31	7.5%	8.5%
751	Automotive repair shops	1,088	659	12	15	1.8%	2.3%
752	Electrical repair shops	146	93	10	10	10.9%	10.9%
760	Miscellaneous repair services	519	308	23	25	7.5%	8.1%
	PERSONAL SERVICES	6,416	3,632	176	194	4.9%	5.3%
761	Private households	1,698	1,017	2	3	0.2%	0.3%
762	Hotels and motels	2,566	1,343	138	148	10.3%	11.0%
770	Lodging places, exc. hotels and motels	185	111	2	2	1.6%	2.0%
771	Laundry, cleaning, and garment services	621	368	23	27	6.4%	7.2%
772	Beauty shops	770	455	5	8	1.2%	1.7%
780	Barber shops	46	31	3	3	8.6%	8.6%
781	Funeral service and crematories	109	63	1	1	1.9%	1.9%
782	Shoe repair shops	6	3	1	1	15.1%	15.1%
790	Dressmaking shops	2	1	0	0	0.0%	0.0%
791	Miscellaneous personal services	413	240	1	2	0.4%	1.0%
	ENTERTAINMENT AND RECREATION SERVICES	11,024	6,185	845	1,023	13.7%	16.5%
800	Theaters and motion pictures	531	321	59	63	18.3%	19.7%
801	Bowling alleys, billiard and pool parlors	99	61	3	3	4.2%	5.1%
802	Miscellaneous entertainment and recreation services	1,664	951	92	114	9.7%	12.0%
	MEDICAL SERVICES, EXCEPT HOSPITALS	7,698	4,351	354	409	8.1%	9.4%
812	Offices of physicians	1,424	814	9	12	1.1%	1.5%
820	Offices of dentists	775	432	5	9	1.2%	2.0%
821	Offices of chiropractors	113	70	0	1	0.0%	1.5%
822	Offices of optometrists	81	46	0	0	0.0%	0.0%
830	Offices of health practitioners, n.e.c.	67	40	1	1	1.3%	2.7%
831	HOSPITALS	8,730	4,852	692	842	14.3%	17.4%
832	Nursing and personal care facilities	2,953	1,636	197	217	12.0%	13.3%
840	Health services, n.e.c.	2,285	1,312	142	169	10.8%	12.9%
	OTHER PROFESSIONAL SERVICES	6,364	3,551	119	154	3.3%	4.3%
841	Legal services	1,634	920	12	18	1.3%	2.0%
	EDUCATIONAL SERVICES	16,565	9,032	3,087	3,693	34.2%	40.9%
842	Elementary and secondary schools	11,130	6,065	2,708	3,188	44.6%	52.6%
850	Colleges and universities	4,799	2,612	338	455	13.0%	17.4%
851	Business, trade, and vocational schools	119	66	5	6	7.3%	9.5%
852	Libraries	313	179	27	30	14.9%	16.9%
860	Educational services, n.e.c.	204	111	9	14	8.3%	12.6%
	SOCIAL SERVICES	3,704	2,039	183	217	9.0%	10.7%
861	Job training and vocational rehabilitation services	409	210	12	14	5.5%	6.7%
862	Child day care services	1,045	576	20	24	3.5%	4.1%
870	Residential care facilities, without nursing	672	372	22	27	5.8%	7.2%
871	Social services, n.e.c.	1,578	881	129	152	14.7%	17.3%
872	Museums, art galleries, and zoos	178	88	3	4	3.4%	5.1%
880	Religious organizations	1,362	741	6	9	0.8%	1.2%
881	Membership organizations	897	477	67	70	13.9%	14.7%
882	Engineering, architectural, and surveying services	1,186	696	15	25	2.2%	3.6%
890	Accounting, auditing, and bookkeeping services	797	449	7	11	1.6%	2.5%
891	Noncommercial educational and scientific research	248	144	8	14	5.3%	9.5%
892	Miscellaneous professional and related services	62	36	2	2	4.7%	6.4%
	PUBLIC ADMINISTRATION	10,019	5,707	1,783	2,129	31.3%	37.3%
900	Executive and legislative offices	322	164	19	22	11.7%	13.5%
901	General government, n.e.c.	1,090	596	142	175	23.9%	29.4%
910	Justice, public order, and safety	3,472	2,094	957	1,048	45.7%	50.1%
921	Public finance, taxation, and monetary policy	687	389	112	136	28.9%	34.9%
922	Administration of human resources programs	1,270	707	190	237	26.9%	33.5%
930	Administration of environmental quality & housing programs	656	331	73	92	22.2%	27.9%
931	Administration of economic programs	1,094	584	173	205	29.6%	35.1%
932	National security and international affairs	1,428	843	116	214	13.8%	25.3%
Copyright 2024 by Barry T. Hirsch, David A. Macpherson, and William E. Even.  The use of this data requires citation.