CBP data indicates that there are more establishments categorized as construction businesses with between one and four employees in Rock County zip codes than in any other category.
The following table shows how many management of companies and enterprises with between one and four employees were in Rock County zip codes during the period from 2012 to 2016.
Management of companies and enterprises with between one and four employees in Rock County (2012-2016)
Year
Total businesses
2012
12
2013
10
2014
9
2015
10
2016
13
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