Mount Vernon, Washington
Pacific Time Zone (UTC-8) · WA · —
About Area Codes in Mount Vernon, Washington
Mount Vernon, Washington is served by 2 area codes: 360, 564. When multiple area codes serve the same geographic area, it typically indicates overlay codes have been added to accommodate growing demand for phone numbers. All local calls within Mount Vernon require 10-digit dialing. The city is in the Pacific time zone (UTC-8).
Other cities in area code 360
Frequently Asked Questions
What area code is Mount Vernon, Washington?
Mount Vernon, Washington uses area codes 360 and 564.
What time zone is Mount Vernon in?
Mount Vernon is in the Pacific time zone (UTC-8).
Do I need to dial 10 digits when calling Mount Vernon?
Yes, all local calls in Mount Vernon require 10-digit dialing because the area is served by multiple overlay area codes.
When was area code 360 created?
Area code 360 was established in 1995 as a geographic split from a larger area code region to serve the growing population.
What cities share area code 360 with Mount Vernon?
Other cities sharing area code 360 with Mount Vernon include Anacortes, Bellingham, Centralia, Longview, Olympia, among others.
Also called Mount Vernon:
Mount Vernon, WA · Pacific Time Zone