CBP data indicates that there are more establishments categorized as retail trade businesses with between one and four employees in 56001 than in any other category.
The following table shows how many construction businesses with between one and four employees were in 56001 during the period from 2012 to 2016.
Construction businesses with between one and four employees in 56001 (2012-2016)
Year
Total businesses
2012
71
2013
77
2014
79
2015
73
2016
73