CBP data indicates that there are more establishments categorized as retail trade businesses with between 250 and 499 employees in Maricopa County zip codes than in any other category.
The following table shows how many finance and insurance businesses with between 250 and 499 employees were in Maricopa County zip codes during the period from 2012 to 2016.
Finance and insurance businesses with between 250 and 499 employees in Maricopa County (2012-2016)
Year
Total businesses
2012
41
2013
47
2014
51
2015
54
2016
54