There were 6,131 health care and social assistance businesses in Maricopa County zip codes that had between one and four employees in 2016, according to County Business Patterns (CBP) statistics provided by the United States Census Bureau.

CBP data indicates that there are more establishments categorized as professional, scientific and technical services businesses with between one and four employees in Maricopa County zip codes than in any other category.

The following table shows how many health care and social assistance businesses with between one and four employees were in Maricopa County zip codes during the period from 2012 to 2016.