The residential area Öster is bordered to the north by the railway, to the west by the Stockholm/Norrköping thoroughfare, and to the south by road 56 towards Nyköping.
Here you will find Kullbergska Hospital, Ellwynska Gymnasium, as well as primary and middle schools and ICA Nära. Along the ridge to the south and down towards St Djulö, there are nice walking areas.