San Dimas, CA Area Codes
San Dimas is served by area codes 840 and 909. It is in California, Los Angeles County. About 33,598 people live in its 1 ZIP codes.
| Field | Value |
|---|---|
| Area code(s) | 840, 909 |
| State / province | California |
| County | Los Angeles County |
| Population | 33,598 |
| ZIP codes | 1 |
| Time zone | Pacific |
| Coordinates | 34.1075, -117.8088 |
What area code is San Dimas in?
ZIP codes in the code footprint
Nearby towns and their area codes
Glendora 626La Verne 840, 909Pomona 840, 909Covina 626Claremont 840, 909Montclair 840, 909West Covina 626Diamond Bar 840, 909
How to dial
Dial 840 + 7 digits for a number in San Dimas, or +1 840 ... from abroad. Ten-digit dialling is required everywhere in the North American Numbering Plan.