Rubuta ci gaba don wannan sakin layi - Tattalin arzikin California gaba ɗaya shine mafi girma daga kowace jiha a Amurka kuma shine na huɗu mafi girma tattalin arziki a duniya. Babban yankin na Arewacin California gida ne ga Silicon Valley tare da manyan kamfanoni kamar: Cisco Systems, Apple Inc., Oracle, EBay, Yahoo!, Facebook, YouTube, Google, da Hewlett Packard, Gundumar Kudi ta San Francisco (gidan hedkwatar kamfanonin hada-hadar kudi da kasuwanci daban-daban kamar VISA, Wells Fargo, da Union Bank of California kuma ita ce gundumar hada-hadar kudi mafi girma a wajen Birnin New York), Wine Country, da kuma yawancin tsakiyar kwarin da ke daya daga cikin yankunan noma mafi yawan amfanin gona a duniya, wanda ke samar da kashi 8% na yawan amfanin gona na kasar. Cibiyoyin manyan ofisoshin gwamnati na ƙasa, kamar Kotun daukaka kara ta Amurka don Circuit na Tara, Babban Bankin Tarayya na San Francisco, da Mint na Amurka, da California State Capitol
da kuma Kotun Koli ta California duk suna cikin yankin. Bay Area kuma yana da mafi girman yawan gidajen gidaje na miliyoyin miliyoyin gidaje na kowane yanki na birni a cikin ƙasar da kuma mafi yawan ma'aikata na biliyan biliyan na kowane yanki na Amurka, kusan fiye da yankunan birni uku na gaba da aka haɗa.