 Darrington is the third-smallest incorporated place in Snohomish County, ahead of Woodway and Index, with an estimated population of 1,421 in 2019.Historically, the Darrington area's population peaked at an estimated 3,500 to 4,000 in the early 20th century during the heyday of logging in the area, which also attracted Scandinavian and Western European immigrants.The town saw an influx of Appalachian transplants from North Carolina (particularly the area around Sylva) in the 1940s and 1950s, whose families remain in the Darrington area and influenced traditions and the local culture.