CBP data indicates that there are more establishments categorized as retail trade businesses with between one and four employees in 18428 than in any other category.
The following table shows how many construction businesses with between one and four employees were in 18428 during the period from 2012 to 2016.
Construction businesses with between one and four employees in 18428 (2012-2016)
Year
Total businesses
2012
26
2013
18
2014
17
2015
17
2016
16