48072 is a postalcode and its consensus geometry is derived from uszcta.
{"mz:is_ceased":0,"geom:latitude":42.497902,"wof:name":"48072","counts:names_total":0,"wof:placetype":"postalcode","mz:is_current":1,"wof:hierarchy":[{"continent_id":102191575,"country_id":85633793,"county_id":102083713,"localadmin_id":404506337,"locality_id":85952041,"postalcode_id":554723899,"region_id":85688599}],"mz:is_deprecated":0,"lbl:latitude":42.497902,"mz:postal_locality_alt":["Royal Oak"],"geom:area":6.81E-4,"geom:longitude":-83.185859,"wof:id":554723899,"counts:concordances_total":1,"geom:type":"Polygon","wof:lastmodified":1611183808,"wof:belongsto":[102191575,85633793,102083713,404506337,85952041,85688599],"wof:concordances":{"gp:id":"12778570"},"wof:repo":"whosonfirst-data-postalcode-us","src:geom":"uszcta","wof:country":"US","counts:names_preferred":0,"gp:parent_id":"12588776","geom:area_square_m":6210442.535617,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"US","counts:names_languages":0,"geom:bbox":"-83.203419,42.488359,-83.158629,42.510434","wof:superseded_by":[],"wof:supersedes":[],"lbl:longitude":-83.185859,"wof:geomhash":"a4a7c94fcdf1d084cefd0bd687da7d16","wof:parent_id":85952041,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"edtf:cessation":"uuuu","mz:postal_locality":"Berkley"}