Auburn is in Pierce County, Washington State, US. Its total area is 77.41 sq kms and its population density is 914.8 per sq km.
Auburn, Washington | is part of | Pierce County, Washington Auburn, Washington | area total | 77.41 (square kilometres) Auburn, Washington | country | United States Auburn, Washington | population density | 914.8 (inhabitants per square kilometre) Auburn, Washington | is part of | Washington (state)