Area codes in Marion, Ohio
Marion, Ohio uses 2 area codes — 740 and 220. The main Marion area code is 740.
Area codes serving Marion
Phone numbers in Marion are written as ten digits — for example (740) 555-0190 — and fall in the Eastern Time zone.
How Marion came to have 2 area codes
The original Marion area code is 740, in service since 1997. As the area ran low on available numbers, an overlay code was added over the same region for new phone lines: 220 (2015). Existing numbers kept their original code — an overlay never forces anyone to change their number — which is why Marion now uses all 2 codes and every local call is dialed with ten digits.
All Ohio area codes · Is a Marion call a scam?
Nearby cities
- Delaware area codes
- Columbus area codes
- Findlay area codes
- Ashland area codes
- Lima area codes
- Sandusky area codes
- Toledo area codes
- Dayton area codes
More cities in Ohio
- Cincinnati area codes
- Cleveland area codes
- Akron area codes
- Athens area codes
- Youngstown area codes
- Oxford area codes
- Brunswick area codes
- Hudson area codes
Frequently asked questions
What is the area code for Marion?
The main area code for Marion, Ohio is 740. Marion is now served by 2 area codes in total: 740, 220.
How many area codes does Marion have?
Marion has 2 area codes: 740, 220.
Why does Marion have more than one area code?
As Marion used up the numbers available in its original area code (740, in service since 1997), additional "overlay" codes were added over the same area so new phone numbers could keep being assigned.
How do you dial a Marion number?
Dial all 10 digits — the area code (740 or 220) 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.