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 finance and insurance businesses with between one and four employees were in Sonoma County zip codes during the period from 2012 to 2016.
Finance and insurance businesses with between one and four employees in Sonoma County (2012-2016)
Year
Total businesses
2012
446
2013
452
2014
431
2015
431
2016
428