CBP data indicates that there are more establishments categorized as professional, scientific and technical services businesses with between one and four employees in San Diego County zip codes than in any other category.
The following table shows how many wholesale trade businesses with between one and four employees were in San Diego County zip codes during the period from 2012 to 2016.
Wholesale trade businesses with between one and four employees in San Diego County (2012-2016)
Year
Total businesses
2012
2530
2013
2474
2014
2481
2015
2466
2016
2535
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