Area codes in Garden Grove, California
Garden Grove, California uses 2 area codes — 714 and 657. The main Garden Grove area code is 714.
Area codes serving Garden Grove
Phone numbers in Garden Grove are written as ten digits — for example (714) 555-0190 — and fall in the Pacific Time zone.
How Garden Grove came to have 2 area codes
The original Garden Grove area code is 714, in service since 1951. As the area ran low on available numbers, an overlay code was added over the same region for new phone lines: 657 (2008). Existing numbers kept their original code — an overlay never forces anyone to change their number — which is why Garden Grove now uses all 2 codes and every local call is dialed with ten digits.
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Frequently asked questions
What is the area code for Garden Grove?
The main area code for Garden Grove, California is 714. Garden Grove is now served by 2 area codes in total: 714, 657.
How many area codes does Garden Grove have?
Garden Grove has 2 area codes: 714, 657.
Why does Garden Grove have more than one area code?
As Garden Grove used up the numbers available in its original area code (714, in service since 1951), additional "overlay" codes were added over the same area so new phone numbers could keep being assigned.
How do you dial a Garden Grove number?
Dial all 10 digits — the area code (714 or 657) followed by the 7-digit local number. From abroad, dial +1, then the area code and number.
Sourced from the official NANPA (North American Numbering Plan Administrator) numbering database, current as of August 2, 2026. Refreshed monthly.