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 real estate, rental and leasing businesses with between one and four employees were in Napa County zip codes during the period from 2012 to 2016.
Real estate, rental and leasing businesses with between one and four employees in Napa County (2012-2016)
Year
Total businesses
2012
157
2013
150
2014
155
2015
154
2016
163