CBP data indicates that there are more establishments categorized as professional, scientific and technical services businesses with between one and four employees in Durham 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 Durham County zip codes during the period from 2012 to 2016.
Transportation and warehousing businesses with between one and four employees in Durham County (2012-2016)
Year
Total businesses
2012
48
2013
53
2014
58
2015
55
2016
66