CBP data indicates that there are more establishments categorized as retail trade businesses with between one and four employees in Montgomery 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 Montgomery County zip codes during the period from 2012 to 2016.
Mining, quarrying, oil and gas extraction businesses with between one and four employees in Montgomery County (2012-2016)
Year
Total businesses
2012
11
2013
12
2014
14
2015
14
2016
13