As of the last reported data from 2015, there are 12,722 workers employed at 207 Mushroom Production establishements in the United States. The industry is slowly growing, adding 86 jobs in the 12 months between 2014 and 2015. On average, each business employs 61 workers. Calculated reported accident rates have outpaced the Food Crops Grown Under Cover Industry by 60% over the past 5 years.