CBP data indicates that there are more establishments categorized as retail trade businesses with between 250 and 499 employees in Contra Costa County zip codes than in any other category.
The following table shows how many health care and social assistance businesses with between 250 and 499 employees were in Contra Costa County zip codes during the period from 2012 to 2016.
Health care and social assistance businesses with between 250 and 499 employees in Contra Costa County (2012-2016)
Year
Total businesses
2012
5
2013
7
2014
7
2015
10
2016
13