CBP data indicates that there are more establishments categorized as retail trade businesses with between 100 and 249 employees in San Diego County zip codes than in any other category.
The following table shows how many manufacturing businesses with between 100 and 249 employees were in San Diego County zip codes during the period from 2012 to 2016.
Manufacturing businesses with between 100 and 249 employees in San Diego County (2012-2016)
Year
Total businesses
2012
112
2013
109
2014
113
2015
121
2016
113