CBP data indicates that there are more establishments categorized as construction businesses with between one and four employees in 30518 than in any other category.
The following table shows how many finance and insurance businesses with between one and four employees were in 30518 during the period from 2012 to 2016.
Finance and insurance businesses with between one and four employees in 30518 (2012-2016)
Year
Total businesses
2012
44
2013
49
2014
50
2015
52
2016
58