CBP data indicates that there are more establishments categorized as retail trade businesses with between five and nine employees in San Luis Obispo 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 Luis Obispo County zip codes during the period from 2012 to 2016.
Construction businesses with between five and nine employees in San Luis Obispo County (2012-2016)
Year
Total businesses
2012
130
2013
128
2014
147
2015
154
2016
167