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 professional, scientific and technical services businesses with between one and four employees were in Sanilac County zip codes during the period from 2012 to 2016.
Professional, scientific and technical services businesses with between one and four employees in Sanilac County (2012-2016)
Year
Total businesses
2012
34
2013
32
2014
40
2015
40
2016
35