CBP data indicates that there are more establishments categorized as health care and social assistance businesses with between five and nine employees in San Mateo County zip codes than in any other category.
The following table shows how many construction businesses with between five and nine employees were in San Mateo County zip codes during the period from 2012 to 2016.
Construction businesses with between five and nine employees in San Mateo County (2012-2016)
Year
Total businesses
2012
266
2013
281
2014
302
2015
330
2016
301
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