7021 is a postalcode and its consensus geometry is derived from ausstat.
{"mz:is_ceased":0,"geom:latitude":-42.9123,"wof:name":"7021","counts:names_total":0,"wof:placetype":"postalcode","mz:is_approximate":1,"wof:hierarchy":[{"continent_id":102191583,"country_id":85632793,"county_id":102048771,"localadmin_id":404549085,"locality_id":101938145,"postalcode_id":504783047,"region_id":85681583}],"mz:is_deprecated":0,"ausstat:POA_CODE":"7021","geom:area":3.62E-4,"geom:longitude":147.492226,"wof:id":504783047,"ausstat:POA_NAME":"7021","counts:concordances_total":1,"geom:type":"MultiPolygon","wof:lastmodified":1480923856,"ausstat:SQKM":3.284156,"wof:belongsto":[85681583,102191583,404549085,85632793,101938145,102048771],"wof:concordances":{"gp:id":"12709380"},"wof:repo":"whosonfirst-data-postalcode-au","src:geom":"ausstat","wof:country":"AU","counts:names_preferred":0,"gp:parent_id":"55864269","geom:area_square_m":3278684.653965,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"AU","counts:names_languages":0,"geom:bbox":"147.476923968,-42.9276404155,147.512800352,-42.8918314085","wof:superseded_by":[],"wof:supersedes":[],"wof:geomhash":"614e1430eb2ba61358a7a79ae4dd1b0e","wof:parent_id":101938145,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"edtf:cessation":"uuuu"}