Auburn,_Washington | isPartOf | Pierce_County,_Washington Auburn,_Washington | areaTotal | 77.41 (square kilometres) Auburn,_Washington | country | United_States Auburn,_Washington | populationDensity | 914.8 (inhabitants per square kilometre) Auburn,_Washington | isPartOf | Washington_(state)
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.