 About 13.4% of families and 19.0% of the population were below the poverty line, including 30.4% of those under age 18 and 16.7% of those age 65 or over.Washington State Route 505 begins in Winlock and runs east to Interstate 5 and beyond to the town of Toledo.Highway 603, a former state route, continues north from Winlock to intersect with State Route 6 about 4 miles West of Chehalis.