CBP data indicates that there are more establishments categorized as construction businesses with between one and four employees in Amador 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 Amador County zip codes during the period from 2012 to 2016.
Professional, scientific and technical services businesses with between one and four employees in Amador County (2012-2016)
Year
Total businesses
2012
65
2013
59
2014
58
2015
55
2016
49