Albany is the county seat of Linn County, Oregon, and is the 11th most populous city in the state. Albany is located in the Willamette Valley a…Albany is the county seat of Linn County, Oregon, and is the 11th most populous city in the state. Albany is located in the Willamette Valley at the confluence of the Calapooia River and the Willamette River in both Linn and Benton counties, just east of Corvallis and south of Salem. It is predominantly a farming and manufacturing city that settlers founded around 1848. As of the 2020 United States Census, the population of Albany, Oregon was 56,472.