Snohomish County — Thumbnail History (historylink.org)
Snohomish County, formed on January 14, 1861, was originally part of Island County. It covers 2,098 square miles, ranging from the Cascade Mountains to Puget Sound. It is bordered by Skagit County to the north, King County to the south and Chelan County to the east. Forest constitutes 68 percent of the county’s land, and Mt. Baker National Forest and 10,436-foot Glacier Peak lie within its boundaries…- On June 28, 1905, the town of Sultan in Snohomish County is officially incorporated as a town of the fourth class. The voters of the small logging community, located at the confluence of the Sultan and Skykomish rivers a few miles east of Monroe, unanimously approved incorporation on June 10, 1905, and also elected their first mayor, Hartford M. Meredith (1840-1907), and other town officials.