CBP data indicates that there are more establishments categorized as retail trade businesses with between five and nine employees in Allegheny County zip codes than in any other category.
The following table shows how many educational services businesses with between five and nine employees were in Allegheny County zip codes during the period from 2012 to 2016.
Educational services businesses with between five and nine employees in Allegheny County (2012-2016)
Year
Total businesses
2012
54
2013
65
2014
64
2015
66
2016
72