CBP data indicates that there are more establishments categorized as professional, scientific and technical services businesses with between one and four employees in King 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 King County zip codes during the period from 2012 to 2016.
Mining, quarrying, oil and gas extraction businesses with between one and four employees in King County (2012-2016)
Year
Total businesses
2012
12
2013
7
2014
10
2015
15
2016
15