CBP data indicates that there are more establishments categorized as retail trade businesses with between one and four employees in 91770 than in any other category.
The following table shows how many manufacturing businesses with between one and four employees were in 91770 during the period from 2012 to 2016.
Manufacturing businesses with between one and four employees in 91770 (2012-2016)
Year
Total businesses
2012
19
2013
26
2014
23
2015
24
2016
20
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