937 Area Code — Ohio
937 is a North American Numbering Plan area code for Ohio, the United States. It covers about 1,434,346 people in 146 towns and 197 ZIP codes, including Dayton, Springfield and Fairborn.
| Field | Value |
|---|---|
| Area code | 937 |
| Country | United States (+1) |
| State / province | Ohio |
| Type | Shares its towns with 326 |
| Time zone | Eastern |
| Population covered | 1,434,346 |
| Towns covered | 146 |
| ZIP codes | 197 |
| Approx. centre | 39.786, -84.013 |
Where area code 937 is used
Area code 937 is assigned to Ohio, the United States, inside the North American Numbering Plan. Numbers in the code are written (937) NXX-XXXX at home and +1 937 NXX-XXXX when dialled from outside Canada and the United States. Since the NANP moved to 10-digit dialling you must always include the area code, even for a local call.
Other area codes in this footprint: 326. They serve towns in the same territory, so a single street can contain numbers from more than one code. That is normal in the NANP and does not change how you dial.
Towns and cities in area code 937
The 146 towns below are the largest in the 937 footprint, ranked by population. Every one of them links to its own page with the full list of area codes and ZIP codes for that town.
| Town | County | Population | ZIP codes |
|---|---|---|---|
| Dayton | Montgomery County | 487,428 | 43 |
| Springfield | Clark County | 99,954 | 6 |
| Fairborn | Greene County | 41,194 | 1 |
| Xenia | Greene County | 40,617 | 1 |
| Marysville | Union County | 38,990 | 2 |
| Troy | Miami County | 37,565 | 2 |
| Miamisburg | Montgomery County | 36,152 | 2 |
| Franklin | Warren County | 32,251 | 1 |
| Sidney | Shelby County | 28,965 | 2 |
| Springboro | Warren County | 27,545 | 1 |
| Piqua | Miami County | 25,237 | 1 |
| Hillsboro | Highland County | 23,443 | 1 |
Counties covered
| County | ZIP codes |
|---|---|
| Montgomery County | 46 |
| Greene County | 17 |
| Clark County | 16 |
| Logan County | 12 |
| Darke County | 12 |
| Miami County | 12 |
| Champaign County | 11 |
| Brown County | 10 |
| Clinton County | 10 |
| Shelby County | 10 |
| Adams County | 9 |
| Preble County | 9 |
Other area codes serving the same towns
Nearby area codes
How to dial area code 937
- Within North America: 937 + 7-digit number (937-NXX-XXXX). The leading 1 is optional on a mobile phone and required on most landlines for long-distance.
- From abroad: your country's international prefix, then 1, then 937, then the 7-digit number — for example 00 1 937 NXX-XXXX from most of Europe.
Frequently asked questions
What area code is 937?
937 is a North American Numbering Plan area code assigned to Ohio, the United States. It covers about 1,434,346 people in 146 towns.
Is 937 a US or Canadian area code?
937 is a United States area code. Canada and the United States share the +1 country code, so both are part of the same numbering plan.
What time zone is area code 937 in?
Area code 937 is in the Eastern time zone.
Do I have to dial 10 digits?
Yes. Every NANP call now requires the area code plus the seven-digit number, even for a local call.