CBP data indicates that there are more establishments categorized as retail trade businesses with between one and four employees in 21218 than in any other category.
The following table shows how many finance and insurance businesses with between one and four employees were in 21218 during the period from 2012 to 2016.
Finance and insurance businesses with between one and four employees in 21218 (2012-2016)
Year
Total businesses
2012
12
2013
11
2014
14
2015
19
2016
18