There were 10 manufacturing businesses in Montgomery County zip codes that had 500 or more employees in 2016, according to County Business Patterns (CBP) statistics provided by the United States Census Bureau.
CBP data indicates that there are more establishments categorized as health care and social assistance businesses with 500 or more employees in Montgomery County zip codes than in any other category.
The following table shows how many manufacturing businesses with 500 or more employees were in Montgomery County zip codes during the period from 2012 to 2016.

