CBP data indicates that there are more establishments categorized as professional, scientific and technical services businesses with between one and four employees in Los Angeles County zip codes than in any other category.
The following table shows how many mining, quarrying, oil and gas extraction businesses with between one and four employees were in Los Angeles County zip codes during the period from 2012 to 2016.
Mining, quarrying, oil and gas extraction businesses with between one and four employees in Los Angeles County (2012-2016)
Year
Total businesses
2012
64
2013
57
2014
58
2015
57
2016
49