CBP data indicates that there are more establishments categorized as professional, scientific and technical services businesses with between one and four employees in Charleston County zip codes than in any other category.
The following table shows how many retail trade businesses with between one and four employees were in Charleston County zip codes during the period from 2012 to 2016.
Retail trade businesses with between one and four employees in Charleston County (2012-2016)
Year
Total businesses
2012
831
2013
841
2014
822
2015
838
2016
827