CBP data indicates that there are more establishments categorized as construction businesses with between one and four employees in Sonoma County zip codes than in any other category.
The following table shows how many industries not classified businesses with between one and four employees were in Sonoma County zip codes during the period from 2012 to 2016.
Industries not classified businesses with between one and four employees in Sonoma County (2012-2016)
Year
Total businesses
2012
12
2013
34
2014
54
2015
59
2016
60