CBP data indicates that there are more establishments categorized as retail trade businesses with between one and four employees in Black Hawk County zip codes than in any other category.
The following table shows how many professional, scientific and technical services businesses with between one and four employees were in Black Hawk County zip codes during the period from 2012 to 2016.
Professional, scientific and technical services businesses with between one and four employees in Black Hawk County (2012-2016)
Year
Total businesses
2012
125
2013
112
2014
114
2015
117
2016
110