Louisville, CO Area Codes
Louisville is served by area codes 303, 720 and 983. It is in Colorado, Boulder County. About 34,127 people live in its 1 ZIP codes.
| Field | Value |
|---|---|
| Area code(s) | 303, 720, 983 |
| State / province | Colorado |
| County | Boulder County |
| Population | 34,127 |
| ZIP codes | 1 |
| Time zone | Mountain |
| Coordinates | 39.9515, -105.1581 |
What area code is Louisville in?
| Area code | Main state | Population covered | Overlap |
|---|---|---|---|
| 303 | Colorado | 3,294,473 | — |
| 720 | Colorado | 3,294,174 | Yes |
| 983 | Colorado | 3,276,231 | Yes |
ZIP codes in the code footprint
Nearby towns and their area codes
Broomfield 303, 720, 983Lafayette 303, 720, 983Arvada 303, 720, 983Boulder 303, 720, 983Westminster 303, 720, 983Erie 303, 720, 983Thornton 303, 720, 983Wheat Ridge 303, 720, 983
How to dial
Dial 303 + 7 digits for a number in Louisville, or +1 303 ... from abroad. Ten-digit dialling is required everywhere in the North American Numbering Plan.