CBP data indicates that there are more establishments categorized as retail trade businesses with between one and four employees in 30721 than in any other category.
The following table shows how many transportation and warehousing businesses with between one and four employees were in 30721 during the period from 2012 to 2016.
Transportation and warehousing businesses with between one and four employees in 30721 (2012-2016)
Year
Total businesses
2012
11
2013
16
2014
17
2015
20
2016
19