CBP data indicates that there are more establishments categorized as construction businesses with between one and four employees in Frederick County zip codes than in any other category.
The following table shows how many wholesale trade businesses with between one and four employees were in Frederick County zip codes during the period from 2012 to 2016.
Wholesale trade businesses with between one and four employees in Frederick County (2012-2016)
Year
Total businesses
2012
44
2013
45
2014
43
2015
41
2016
40
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