{"url":"https://openpostcodes.uk/SL9","type":"district","district":"SL9","area":"SL","postcode_count":878,"councils":["Buckinghamshire","Three Rivers"],"sectors":[{"sector":"SL9 0","url":"https://openpostcodes.uk/SL9%200","postcode_count":216,"admin_district":"Buckinghamshire"},{"sector":"SL9 1","url":"https://openpostcodes.uk/SL9%201","postcode_count":20,"admin_district":"Buckinghamshire"},{"sector":"SL9 7","url":"https://openpostcodes.uk/SL9%207","postcode_count":179,"admin_district":"Buckinghamshire"},{"sector":"SL9 8","url":"https://openpostcodes.uk/SL9%208","postcode_count":236,"admin_district":"Buckinghamshire"},{"sector":"SL9 9","url":"https://openpostcodes.uk/SL9%209","postcode_count":227,"admin_district":"Buckinghamshire"}]}