Mountlake Terrace, Washington
Area code 425 · Population: 19,909
Pacific (PT)
Washington
Pop. 19,909
Area Codes Serving Mountlake Terrace
About Mountlake Terrace, Washington
Mountlake Terrace is a city in Washington that is served by area code 425. The city has a population of approximately 19,909 residents and is located in the Pacific Time Zone.