This month’s Map of the Month highlights employment
centers within the 21 - County Northern California Mega Region. Employment Centers were defined
within built-up areas where there was an employment density of over 5,000 jobs per square
mile. Jobs within the Mega Region were broken down by North American Industry Classification
System (NAICS) sectors, and were grouped into 7 related classifications.
The Mega Region had over 5.7 million jobs in 2016. The largest shares of jobs are in the Information, Professional Services,
Management & Administration sectors (over 1.2 million). The top five employment centers within
the Mega Region are in Santa Clara (988,657), Alameda (762,089), San Francisco (642,093),
Sacramento (617,947), and Contra Costa Counties (408,669).