DALLAS, Ore., city, county-seat of Polk County; situated on La Creole Creek and the Southern Pacific and other railroads; about 70 miles southwest of Portland. The industries are dependent upon the production of the fertile Willamette Valley, in which Dallas is situated. Flour mills, sash and door factories, sawmills, organs, leather and woollen factories and tanneries constitute some of the industries. Sandstone quarries in the vicinity furnish excellent stone. The industrial interests are promoted by good water power. Dallas was settled in 1849 and in 1891 was chartered as a city. It contains a Carnegie library. Pop. 2,124.