CBP data indicates that there are more establishments categorized as retail trade businesses with between 250 and 499 employees in Harris County zip codes than in any other category.
The following table shows how many mining, quarrying, oil and gas extraction businesses with between 250 and 499 employees were in Harris County zip codes during the period from 2012 to 2016.
Mining, quarrying, oil and gas extraction businesses with between 250 and 499 employees in Harris County (2012-2016)
Year
Total businesses
2012
23
2013
26
2014
30
2015
27
2016
24
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