CBP data indicates that there are more establishments categorized as retail trade businesses with between one and four employees in Jefferson 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 Jefferson County zip codes during the period from 2012 to 2016.
Health care and social assistance businesses with between one and four employees in Jefferson County (2012-2016)
Year
Total businesses
2012
21
2013
26
2014
30
2015
35
2016
35