Mount Sinai, NY Area Codes
Mount Sinai is served by area codes 631 and 934. It is in New York, Suffolk County. About 10,750 people live in its 1 ZIP codes.
| Field | Value |
|---|---|
| Area code(s) | 631, 934 |
| State / province | New York |
| County | Suffolk County |
| Population | 10,750 |
| ZIP codes | 1 |
| Time zone | Eastern |
| Coordinates | 40.9392, -73.0187 |
What area code is Mount Sinai in?
ZIP codes in the code footprint
Nearby towns and their area codes
Port Jefferson Station 516, 631, 934Miller Place 631, 934Port Jefferson 631, 934Coram 516, 631, 934Rocky Point 631, 934Middle Island 631, 934East Setauket 631, 934Selden 516, 631, 934
How to dial
Dial 631 + 7 digits for a number in Mount Sinai, or +1 631 ... from abroad. Ten-digit dialling is required everywhere in the North American Numbering Plan.