Area Code Lookup
What Area Code Is Grass Valley?
Area code 530 · California
Grass Valley uses area code 530. It is located in California.
Area Code Serving Grass Valley
Frequently Asked Questions
What area code is Grass Valley?
Grass Valley uses area code 530. It is located in California.
How do I call Grass Valley from outside the US?
To call Grass Valley from abroad, dial +1 followed by the area code and 7-digit local number (e.g. +1-530-XXX-XXXX). The +1 is the country code for all NANPA countries.