CBP data indicates that there are more establishments categorized as professional, scientific and technical services businesses with between one and four employees in Rockwall County zip codes than in any other category.
The following table shows how many health care and social assistance businesses with between one and four employees were in Rockwall County zip codes during the period from 2012 to 2016.
Health care and social assistance businesses with between one and four employees in Rockwall County (2012-2016)
Year
Total businesses
2012
107
2013
117
2014
122
2015
131
2016
138