CBP data indicates that there are more establishments categorized as construction businesses with between one and four employees in Harford County zip codes than in any other category.
The following table shows how many retail trade businesses with between one and four employees were in Harford County zip codes during the period from 2012 to 2016.
Retail trade businesses with between one and four employees in Harford County (2012-2016)
Year
Total businesses
2012
267
2013
283
2014
252
2015
260
2016
260
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