Union Membership, Coverage, Density and Employment by Industry, 1988 (details in table note)
CIC	Industry Name	Obs	Employment	Members	Covered	%Mem	%Cov
	AGRICULTURE	2,122	1,179,884	20,323	24,538	1.7	2.1
10	Agricultural production, crops	919	532,514	9,775	11,367	1.8	2.1
11	Agricultural production, livestock	856	426,759	5,452	7,100	1.3	1.7
20	Agricultural services, exc. horticultural	347	220,611	5,096	6,071	2.3	2.8
	FORESTRY AND FISHERIES	714	416,608	16,316	22,474	3.9	5.4
21	Horticultural services	473	311,940	9,758	10,839	3.1	3.5
30	Forestry	182	78,113	6,051	10,688	7.7	13.7
31	Fishing, hunting, and trapping	59	26,555	508	948	1.9	3.6
	MINING	1,386	711,571	132,972	146,019	18.7	20.5
40	Metal mining	169	60,184	23,226	30,249	38.6	50.3
41	Coal mining	317	154,227	65,313	66,782	42.3	43.3
42	Crude petroleum and natural gas extraction	701	399,030	9,606	13,148	2.4	3.3
50	Nonmetallic mining and quarrying, exc. fuel	199	98,130	34,827	35,840	35.5	36.5
60	CONSTRUCTION	9,516	5,703,998	1,250,561	1,333,019	21.9	23.4
	MANUFACTURING, NONDURABLE GOODS	14,136	8,289,787	1,651,492	1,772,491	19.9	21.4
100	Meat products	725	397,224	75,760	83,059	19.1	20.9
101	Dairy products	304	174,841	52,532	53,157	30.0	30.4
102	Canned and preserved fruits and vegetables	411	230,842	83,530	91,048	36.2	39.4
110	Grain mill products	194	109,127	13,386	14,328	12.3	13.1
111	Bakery products	342	212,812	76,490	83,194	35.9	39.1
112	Sugar and confectionery products	195	96,146	28,429	30,139	29.6	31.3
120	Beverage industries	304	195,731	68,251	71,266	34.9	36.4
121	Miscellaneous food preparations and kindred products	339	200,587	39,655	41,316	19.8	20.6
122	Not specified food industries	0
130	Tobacco manufacturers	106	58,847	18,647	19,501	31.7	33.1
132	Knitting mills	243	124,206	8,345	9,720	6.7	7.8
140	Dyeing and finishing textiles, exc. wool and knit goods	57	30,081	6,464	7,413	21.5	24.6
141	Floor coverings, exc. hard surface	74	48,079	5,849	7,169	12.2	14.9
142	Yarn, thread, and fabric mills	888	443,998	32,738	38,905	7.4	8.8
150	Miscellaneous textile mill products	89	44,121	16,136	17,680	36.6	40.1
151	Apparel and accessories, exc. knit	1,447	973,801	183,162	196,370	18.8	20.2
152	Miscellaneous fabricated textile products	296	165,217	17,471	19,040	10.6	11.5
160	Pulp, paper, and paperboard mills	606	321,409	173,379	177,654	53.9	55.3
161	Miscellaneous paper and pulp products	370	224,567	53,222	54,741	23.7	24.4
162	Paperboard containers and boxes	289	180,785	62,466	67,699	34.6	37.4
171	Newspaper publishing and printing	862	488,394	62,681	72,464	12.8	14.8
172	Printing, publishing, allied industries, exc. newspapers	1,953	1,210,071	132,829	146,043	11.0	12.1
180	Plastics, synthetics, and resins	243	137,772	27,374	29,403	19.9	21.3
181	Drugs	445	247,584	21,109	21,587	8.5	8.7
182	Soaps and cosmetics	260	164,850	23,498	24,482	14.3	14.9
190	Paints, varnishes, and related products	93	60,804	16,105	17,595	26.5	28.9
191	Agricultural chemicals	74	41,868	6,817	8,257	16.3	19.7
192	Industrial and miscellaneous chemicals	1,061	582,813	107,213	116,929	18.4	20.1
200	Petroleum refining	255	159,896	55,180	56,867	34.5	35.6
201	Miscellaneous petroleum and coal products	29	16,802	3,227	3,227	19.2	19.2
210	Tires and inner tubes	152	88,317	38,298	39,566	43.4	44.8
211	Other rubber products, plastics footwear and belting	287	183,414	42,225	45,280	23.0	24.7
212	Miscellaneous plastics products	886	545,524	76,327	82,765	14.0	15.2
220	Leather tanning and finishing	21	11,308	4,109	4,109	36.3	36.3
221	Footwear, exc. rubber and plastic	178	82,683	13,994	15,545	16.9	18.8
222	Leather products, exc. footwear	58	35,265	4,596	4,973	13.0	14.1
	MANUFACTURING, DURABLE GOODS	19,904	12,273,438	2,909,469	3,133,297	23.7	25.5
230	Logging	187	92,316	3,664	4,692	4.0	5.1
231	Sawmills, planing mills, and millwork	674	357,027	65,894	70,749	18.5	19.8
232	Wood buildings and mobile homes	106	68,361	3,814	3,814	5.6	5.6
241	Miscellaneous wood products	226	136,146	20,822	22,899	15.3	16.8
242	Furniture and fixtures	1,153	668,958	113,512	119,537	17.0	17.9
250	Glass and glass products	274	161,242	67,675	69,916	42.0	43.4
251	Cement, concrete, gypsum, and plaster products	347	208,445	43,122	48,394	20.7	23.2
252	Structural clay products	60	36,369	7,295	7,295	20.1	20.1
261	Pottery and related products	53	32,071	8,378	8,378	26.1	26.1
262	Miscellaneous nonmetallic mineral and stone products	208	121,570	27,556	30,496	22.7	25.1
270	Blast furnaces, steelworks, rolling and finishing mills	564	381,972	214,549	223,211	56.2	58.4
271	Iron and steel foundries	189	124,130	47,064	49,519	37.9	39.9
272	Primary aluminum industries	218	150,618	62,065	67,812	41.2	45.0
280	Other primary metal industries	292	156,750	44,224	48,654	28.2	31.0
281	Cutlery, handtools, and other hardware	205	129,870	25,430	27,454	19.6	21.1
282	Fabricated structural metal products	803	506,021	104,009	112,562	20.6	22.2
290	Screw machine products	89	58,960	7,224	8,262	12.3	14.0
291	Metal forgings and stampings	214	133,306	51,060	51,662	38.3	38.8
292	Ordnance	181	104,970	35,074	38,609	33.4	36.8
300	Miscellaneous fabricated metal products	563	358,846	93,754	95,685	26.1	26.7
301	Not specified metal industries	0
310	Engines and turbines	116	84,624	41,337	41,337	48.8	48.8
311	Farm machinery and equipment	223	120,183	33,173	36,036	27.6	30.0
312	Construction and material handling machines	360	213,473	54,251	57,138	25.4	26.8
320	Metalworking machinery	448	253,842	33,239	37,249	13.1	14.7
321	Office and accounting machines	135	84,327	6,623	6,714	7.9	8.0
322	Electronic computing equipment	1,138	677,487	17,930	26,911	2.6	4.0
331	Machinery, exc. electrical, n.e.c.	1,638	1,015,422	195,240	209,404	19.2	20.6
332	Not specified machinery	6	4,402	813	1,987	18.5	45.1
340	Household appliances	267	162,180	64,247	69,965	39.6	43.1
341	Radio, T.V., and communication equipment	763	486,407	71,431	80,043	14.7	16.5
342	Electrical machinery, equipment, and supplies, n.e.c.	2,222	1,365,457	202,426	225,177	14.8	16.5
350	Not specified electrical machinery, equipment, and supplie	12	11,405	1,208	1,208	10.6	10.6
351	Motor vehicles and motor vehicle equipment	1,996	1,195,008	651,396	670,816	54.5	56.1
352	Aircraft and parts	893	670,857	216,075	250,683	32.2	37.4
360	Ship and boat building and repairing	466	264,678	71,415	81,300	27.0	30.7
361	Railroad locomotives and equipment	30	21,246	7,597	7,597	35.8	35.8
362	Guided missiles, space vehicles, and parts	543	428,365	80,180	93,308	18.7	21.8
370	Cycles and miscellaneous transportation equipment	94	58,728	14,469	14,469	24.6	24.6
371	Scientific and controlling instruments	387	222,249	23,905	24,377	10.8	11.0
372	Optical and health services supplies	485	298,946	17,160	19,175	5.7	6.4
380	Photographic equipment and supplies	190	129,560	5,093	6,135	3.9	4.7
381	Watches, clocks, and clockwork operated devices	28	21,227	3,168	3,467	14.9	16.3
382	Not specified professional equipment	1	376	0	0	0.0	0.0
390	Toys, amusement, and sporting goods	200	121,856	17,968	21,158	14.7	17.4
391	Miscellaneous manufacturing industries	625	353,720	31,710	36,809	9.0	10.4
392	Not specified manufacturing industries	32	19,468	1,232	1,232	6.3	6.3
	TRANSPORTATION	7,628	4,526,483	1,895,167	2,010,806	41.9	44.4
400	Railroads	673	362,865	292,239	296,108	80.5	81.6
401	Bus service and urban transit	695	437,048	182,829	190,700	41.8	43.6
402	Taxicab service	103	61,658	6,686	7,160	10.8	11.6
410	Trucking service	2,645	1,543,802	379,544	403,468	24.6	26.1
411	Warehousing and storage	187	106,622	18,187	19,700	17.1	18.5
412	U.S. Postal Service	1,485	872,514	650,088	710,207	74.5	81.4
420	Water transportation	282	182,787	58,130	58,618	31.8	32.1
421	Air transportation	1,100	683,276	284,763	299,280	41.7	43.8
422	Pipe lines, exc. natural gas	31	16,796	903	1,557	5.4	9.3
432	Services incidental to transportation	427	259,114	21,798	24,007	8.4	9.3
	COMMUNICATIONS	2,643	1,558,119	534,968	603,229	34.3	38.7
440	Radio and television broadcasting	488	273,324	31,379	39,776	11.5	14.6
441	Telephone (wire and radio)	1,881	1,113,928	486,710	544,445	43.7	48.9
442	Telegraph and miscellaneous communications services	274	170,867	16,880	19,008	9.9	11.1
	UTILITIES AND SANITARY SERVICES	2,671	1,558,048	537,461	584,063	34.5	37.5
460	Electric light and power	1,252	687,036	252,184	277,577	36.7	40.4
461	Gas and steam supply systems	339	213,324	60,563	66,295	28.4	31.1
462	Electric and gas, and other combinations	277	181,533	89,623	92,757	49.4	51.1
470	Water supply and irrigation	376	221,683	58,961	64,234	26.6	29.0
471	Sanitary services	419	250,543	75,222	82,293	30.0	32.8
472	Not specified utilities	8	3,930	907	907	23.1	23.1
	WHOLESALE TRADE	6,595	3,878,565	291,006	337,935	7.5	8.7
500	Motor vehicles and equipment	304	178,488	7,045	8,000	3.9	4.5
501	Furniture and home furnishings	112	68,637	3,388	4,722	4.9	6.9
502	Lumber and construction materials	253	146,760	12,070	12,542	8.2	8.5
510	Sporting goods, toys, and hobby goods	65	34,243	1,843	1,992	5.4	5.8
511	Metals and minerals, exc. petroleum	120	73,183	7,609	8,741	10.4	11.9
512	Electrical goods	427	278,324	12,051	17,180	4.3	6.2
521	Hardware, plumbing and heating supplies	336	188,189	11,585	13,583	6.2	7.2
522	Not specified electrical and hardware products	0
530	Machinery, equipment, and supplies	1,641	952,860	30,377	39,705	3.2	4.2
531	Scrap and waste materials	197	123,085	9,529	10,937	7.7	8.9
532	Miscellaneous wholesale, durable goods	110	64,873	0	0	0.0	0.0
540	Paper and paper products	168	103,855	5,326	6,837	5.1	6.6
541	Drugs, chemicals, and allied products	263	162,307	15,032	15,032	9.3	9.3
542	Apparel, fabrics, and notions	160	94,313	8,008	11,250	8.5	11.9
550	Groceries and related products	1,130	687,524	112,896	122,159	16.4	17.8
551	Farm products - raw materials	205	87,689	2,162	3,346	2.5	3.8
552	Petroleum products	282	154,872	7,115	8,831	4.6	5.7
560	Alcoholic beverages	227	139,631	24,894	29,739	17.8	21.3
561	Farm supplies	229	119,817	3,018	3,523	2.5	2.9
562	Miscellaneous wholesale, nondurable goods	349	209,510	17,056	19,814	8.1	9.5
571	Not specified wholesale trade	17	10,406	0	0	0.0	0.0
	RETAIL TRADE	28,773	16,811,395	1,105,952	1,237,264	6.6	7.4
580	Lumber and building material retailing	802	462,403	24,743	29,222	5.4	6.3
581	Hardware stores	298	174,368	5,148	5,148	3.0	3.0
582	Retail nurseries and garden stores	116	67,516	0	0	0.0	0.0
590	Mobile home dealers	45	24,256	0	0	0.0	0.0
591	Department stores	3,479	2,068,280	91,730	109,781	4.4	5.3
592	Variety stores	228	107,554	3,178	3,908	3.0	3.6
600	Miscellaneous general merchandise stores	229	121,759	14,067	17,543	11.6	14.4
601	Grocery stores	4,413	2,539,675	681,978	724,176	26.9	28.5
602	Dairy products stores	80	50,371	876	876	1.7	1.7
610	Retail bakeries	268	161,725	12,768	14,382	7.9	8.9
611	Food stores, n.e.c.	217	128,397	5,221	6,749	4.1	5.3
612	Motor vehicle dealers	1,713	995,641	33,765	48,266	3.4	4.8
620	Auto and home supply stores	655	397,364	11,081	13,053	2.8	3.3
621	Gasoline service stations	745	425,984	8,272	8,665	1.9	2.0
622	Miscellaneous vehicle dealers	132	68,619	1,464	1,997	2.1	2.9
630	Apparel and accessory stores, exc. shoe	1,207	718,018	18,763	19,714	2.6	2.7
631	Shoe stores	252	146,452	1,602	1,602	1.1	1.1
632	Furniture and home furnishings stores	745	445,767	12,997	16,177	2.9	3.6
640	Household appliances, TV, and radio stores	615	369,928	5,405	6,912	1.5	1.9
641	Eating and drinking places	8,563	5,025,584	94,433	115,927	1.9	2.3
642	Drug stores	843	499,509	28,747	32,071	5.8	6.4
650	Liquor stores	178	95,577	5,752	6,488	6.0	6.8
651	Sporting goods, bicycles, and hobby stores	421	258,322	6,143	6,143	2.4	2.4
652	Book and stationery stores	308	168,757	4,830	5,463	2.9	3.2
660	Jewelry stores	257	153,547	441	4,301	0.3	2.8
661	Sewing, needlework, and piece goods stores	91	53,132	1,722	1,722	3.2	3.2
662	Mail order houses	163	96,105	5,504	6,454	5.7	6.7
670	Vending machine operators	117	65,142	10,298	10,381	15.8	15.9
671	Direct selling establishments	182	107,316	1,245	1,870	1.2	1.7
672	Fuel and ice dealers	179	90,034	4,885	5,047	5.4	5.6
681	Retail florists	228	127,981	767	767	0.6	0.6
682	Miscellaneous retail stores	981	581,154	8,129	11,428	1.4	2.0
691	Not specified retail trade	23	15,157	0	1,033	0.0	6.8
	FINANCE, INSURANCE, AND REAL ESTATE	11,680	7,002,764	223,599	288,441	3.2	4.1
700	Banking	3,492	2,029,359	28,549	46,952	1.4	2.3
701	Savings and loan associations	370	240,542	5,862	8,653	2.4	3.6
702	Credit agencies, n.e.c.	876	516,880	17,744	22,787	3.4	4.4
710	Security, commodity brokerage, and investment companies	932	568,753	13,792	22,282	2.4	3.9
711	Insurance	3,425	2,062,144	59,097	79,213	2.9	3.8
712	Real estate, including real estate-insurance-law offices	2,585	1,585,086	98,555	108,555	6.2	6.8
	BUSINESS AND REPAIR SERVICES	8,487	5,266,019	247,577	307,971	4.7	5.8
721	Advertising	362	237,041	6,612	11,187	2.8	4.7
722	Services to dwellings and other buildings	832	544,158	68,252	74,510	12.5	13.7
730	Commercial research, development, and testing labs	473	245,701	10,289	13,608	4.2	5.5
731	Personnel supply services	1,074	661,911	19,427	28,064	2.9	4.2
732	Business management and consulting services	592	365,553	6,698	14,064	1.8	3.8
740	Computer and data processing services	985	632,821	6,990	12,367	1.1	2.0
741	Detective and protective services	541	339,106	25,982	33,588	7.7	9.9
742	Business services, n.e.c.	1,609	993,136	33,004	44,065	3.3	4.4
750	Automotive services, exc. repair	495	308,847	17,951	19,475	5.8	6.3
751	Automotive repair shops	940	577,415	19,694	23,310	3.4	4.0
752	Electrical repair shops	137	85,319	9,793	10,661	11.5	12.5
760	Miscellaneous repair services	447	275,011	22,884	23,074	8.3	8.4
	PERSONAL SERVICES	6,283	3,541,487	173,203	183,501	4.9	5.2
761	Private households	1,890	1,125,578	1,157	1,157	0.1	0.1
762	Hotels and motels	2,323	1,183,857	129,531	135,957	10.9	11.5
770	Lodging places, exc. hotels and motels	197	110,797	1,048	1,048	0.9	0.9
771	Laundry, cleaning, and garment services	584	351,410	29,852	30,519	8.5	8.7
772	Beauty shops	757	451,083	3,522	5,821	0.8	1.3
780	Barber shops	42	28,360	2,647	2,647	9.3	9.3
781	Funeral service and crematories	105	60,594	2,325	2,325	3.8	3.8
782	Shoe repair shops	10	6,944	0	0	0.0	0.0
790	Dressmaking shops	5	2,547	0	0	0.0	0.0
791	Miscellaneous personal services	370	220,315	3,120	4,026	1.4	1.8
	ENTERTAINMENT AND RECREATION SERVICES	1,992	1,195,253	138,531	159,463	11.6	13.3
800	Theaters and motion pictures	438	296,354	62,865	67,864	21.2	22.9
801	Bowling alleys, billiard and pool parlors	108	65,077	637	637	1.0	1.0
802	Miscellaneous entertainment and recreation services	1,446	833,822	75,029	90,962	9.0	10.9
831	HOSPITALS	7,782	4,508,296	665,137	781,866	14.8	17.3
	MEDICAL SERVICES, EXCEPT HOSPITALS	6,553	3,721,545	309,994	355,622	8.3	9.6
812	Offices of physicians	1,263	735,761	5,267	8,389	0.7	1.1
820	Offices of dentists	714	385,933	3,352	3,439	0.9	0.9
821	Offices of chiropractors	74	52,275	0	0	0.0	0.0
822	Offices of optometrists	87	46,227	740	740	1.6	1.6
830	Offices of health practitioners, n.e.c.	53	30,280	1,813	1,813	6.0	6.0
832	Nursing and personal care facilities	2,643	1,463,931	174,653	195,039	11.9	13.3
840	Health services, n.e.c.	1,719	1,007,138	124,169	146,202	12.3	14.5
	EDUCATIONAL SERVICES	15,426	8,510,889	2,969,637	3,593,118	34.9	42.2
842	Elementary and secondary schools	10,402	5,752,773	2,587,875	3,097,073	45.0	53.8
850	Colleges and universities	4,437	2,436,438	340,554	444,030	14.0	18.2
851	Business, trade, and vocational schools	128	70,154	3,911	6,749	5.6	9.6
852	Libraries	317	178,306	32,350	39,287	18.1	22.0
860	Educational services, n.e.c.	142	73,218	4,946	5,980	6.8	8.2
	SOCIAL SERVICES	3,148	1,819,601	156,264	189,019	8.6	10.4
861	Job training and vocational rehabilitation services	372	203,753	9,873	11,759	4.8	5.8
862	Child day care services	890	509,318	13,611	19,764	2.7	3.9
870	Residential care facilities, without nursing	563	330,957	18,707	22,320	5.7	6.7
871	Social services, n.e.c.	1,323	775,573	114,073	135,176	14.7	17.4
	OTHER PROFESSIONAL SERVICES	5,946	3,468,414	124,471	163,418	3.6	4.7
841	Legal services	1,412	855,190	11,775	15,256	1.4	1.8
872	Museums, art galleries, and zoos	181	94,620	8,458	12,148	8.9	12.8
880	Religious organizations	1,308	750,030	10,017	15,609	1.3	2.1
881	Membership organizations	844	468,052	66,956	73,861	14.3	15.8
882	Engineering, architectural, and surveying services	1,194	696,718	17,824	29,183	2.6	4.2
890	Accounting, auditing, and bookkeeping services	757	445,838	3,542	6,761	0.8	1.5
891	Noncommercial educational and scientific research