CBP data indicates that there are more establishments categorized as retail trade businesses with between five and nine employees in San Diego County zip codes than in any other category.
The following table shows how many construction businesses with between five and nine employees were in San Diego County zip codes during the period from 2012 to 2016.
Construction businesses with between five and nine employees in San Diego County (2012-2016)
Year
Total businesses
2012
930
2013
950
2014
1027
2015
1045
2016
1093