2421 is a postalcode and its consensus geometry is derived from ausstat.
{"mz:is_ceased":0,"geom:latitude":-32.538016,"wof:name":"2421","counts:names_total":0,"wof:placetype":"postalcode","mz:is_approximate":1,"wof:hierarchy":[{"continent_id":102191583,"country_id":85632793,"county_id":102049061,"localadmin_id":404226739,"postalcode_id":504778105,"region_id":85681545}],"mz:is_deprecated":0,"ausstat:POA_CODE":"2421","geom:area":0.02307,"geom:longitude":151.550329,"wof:id":504778105,"ausstat:POA_NAME":"2421","counts:concordances_total":1,"geom:type":"MultiPolygon","wof:lastmodified":1480931928,"ausstat:SQKM":240.330074,"wof:belongsto":[85681545,102191583,404226739,85632793,102049061],"wof:concordances":{"gp:id":"12707002"},"wof:repo":"whosonfirst-data-postalcode-au","src:geom":"ausstat","wof:country":"AU","counts:names_preferred":0,"gp:parent_id":"2344700","geom:area_square_m":2.40491333279443E8,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"AU","counts:names_languages":0,"geom:bbox":"151.45436176,-32.6298647215,151.660967008,-32.438718004","wof:superseded_by":[],"wof:supersedes":[],"wof:geomhash":"c0299d0f304015e740ee3d9d4bb4f429","wof:parent_id":404226739,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"edtf:cessation":"uuuu"}