CBP data indicates that there are more establishments categorized as retail trade businesses with between 250 and 499 employees in California than in any other category.
The following table shows how many gasoline stations with between 250 and 499 employees were in California during the period from 2012 to 2016.
Gasoline stations with between 250 and 499 employees in California (2012-2016)
Year
Total businesses
2012
228,066
2013
224,916
2014
223,166
2015
223,208
2016
222,152