Burlington is a city in Skagit County, Washington, United States. Its population was recorded as 9,152 in the 2020 census. Burlington is located approximately halfway between Seattle and Vancouver, Canada. The city is included in the Mount Vernon–Anacortes, Washington Metropolitan Statistical Area.

Skagit County is a county in the U.S. state of Washington. As of the 2020 census, the population was 129,523. The county seat and largest city is Mount Vernon. The county was formed in 1883 from Whatcom County and is named for the Skagit Indian tribe, which has been indigenous to the area prior to European-American settlement.