S�dert�lje is a city and the seat of S�dert�lje Municipality, Stockholm County, Sweden with 64,619 inhabitants in 2010.
The industrial city, about 30 kilometers (19 mi) southwest of Stockholm, is the home to truck maker Scania AB and a top 10 pharmaceutical company Astra Zeneca.
S�dert�lje is an international municipality and this fact is reflected in business, cultural life and the population