CBP data indicates that there are more establishments categorized as construction businesses with between one and four employees in Sanilac 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 Sanilac County zip codes during the period from 2012 to 2016.
Retail trade businesses with between one and four employees in Sanilac County (2012-2016)
Year
Total businesses
2012
75
2013
78
2014
67
2015
67
2016
68