NLRB Stats Archive

NLRB Stats Archive › Annual Reports › FY1958 › Size of units in collective-bargaining elections

Size of units in collective-bargaining elections

source page 169 · nlrb1958_p0169_t0


1-9	883	20 4	483	22 7	140	27 7	260	15 3
10-19	797	18 4	408	19 1	102	20 2	287	16 9
20-29	539	12 4	273	12 8	53	10 5	213	12 5
30-39	379	87	173	81	39	77	167	98
40-49	256	59	125	59	24	47	107	63
50-59	170	39	81	38	15	30	74 68	40
60-69	157	36	71	33	18	35		44
70-79	123	28	56	26	14	28	53	31
80-89	100	23	45	21	10	20	45	26
90-99	90	21	34	16	12	24	44	26
100-149	309	7.1	150	70	29	57	130	7.6
150-199	146	34	63	30	12	24	71	42
200-299	147	34	66	31	7	14	74	44
300-399	85	20	33	16	9	18	43	25
400-499	50	12	25	12	9	1.8	16	9
500-599	28	0.6	16	8	1	0.2	11	0.6
600-799	30	0.7	10	0.5	5	1 0	15	0.9
800-099	16	0.4	7	0.3	2	4	7	0.4
3,000-1,999	23	5	8	4	2	4	13	0.8
2,000-2,999	7	0.2	3	0.1	1	0.2	3	2
3,000-3,999	1	(I)	o	0	1	2	0	0
4,000-4,999	o	0	o	0	o	.o	0	0
5,000-9,999	i	(1)	i	(1)	o	.o	o	0
10,000 and over	o	.o	0	o	o	o	o	0

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Source page 169 of NLRB FY1958 annual report — Source: NLRB Annual Report FY1958, p. 169.

Source data: U.S. NLRB Annual Reports (public domain). Reconstruction by NLRB Stats Archive. Updated June 2026.