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 retail trade businesses with between one and four employees were in Rock County zip codes during the period from 2012 to 2016.
Retail trade businesses with between one and four employees in Rock County (2012-2016)
Year
Total businesses
2012
182
2013
169
2014
185
2015
176
2016
168
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