CBP data indicates that there are more establishments categorized as professional, scientific and technical services businesses with between one and four employees in Napa County zip codes than in any other category.
The following table shows how many transportation and warehousing businesses with between one and four employees were in Napa County zip codes during the period from 2012 to 2016.
Transportation and warehousing businesses with between one and four employees in Napa County (2012-2016)
Year
Total businesses
2012
45
2013
43
2014
38
2015
39
2016
40
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