Simplify the following text for a Grade 12 native English-speaking person.
Original: Other significant settlements are Banbury , Bicester , Kidlington , and Chipping Norton to the north of Oxford ; Witney to the west ; Thame and Chinnor to the east ; and Abingdon , Wantage , Didcot , Wallingford and Henley-on-Thames to the south .
Simplified: Other significant settlements are Bicester , Banbury , and Chipping Norton to the north of Oxford ; Witney to the west ; Thame and Chinnor to the east ; and Abingdon , Wantage , Didcot and Henley-on-Thames to the south .