CBP data indicates that there are more establishments categorized as construction businesses with between one and four employees in 18603 than in any other category.
The following table shows how many retail trade businesses with between one and four employees were in 18603 during the period from 2012 to 2016.
Retail trade businesses with between one and four employees in 18603 (2012-2016)
Year
Total businesses
2012
18
2013
22
2014
21
2015
27
2016
23