54310 is a postalcode and its consensus geometry is derived from frgov.
{"mz:is_ceased":0,"geom:latitude":49.22248,"wof:name":"54310","counts:names_total":0,"wof:placetype":"postalcode","frgov:DEP":"54","frgov:ID":"54310","frgov:_COL6":2737.56,"mz:is_approximate":1,"wof:hierarchy":[{"continent_id":102191581,"country_id":85633147,"county_id":102069949,"empire_id":136253037,"localadmin_id":404406985,"locality_id":101828221,"macrocounty_id":404227705,"macroregion_id":1108826391,"postalcode_id":421303423,"region_id":85683343}],"mz:is_deprecated":0,"frgov:SURF":4.836686,"geom:area":5.99E-4,"geom:longitude":5.992706,"wof:id":421303423,"frgov:LIB":"Homcourt","counts:concordances_total":1,"geom:type":"MultiPolygon","wof:lastmodified":1496504897,"wof:belongsto":[85683343,102191581,404227705,404406985,85633147,1108826391,101828221,136253037,102069949],"wof:concordances":{"gp:id":"12725599"},"wof:repo":"whosonfirst-data-postalcode-fr","src:geom":"frgov","wof:country":"FR","counts:names_preferred":0,"frgov:POP2010":6322,"gp:parent_id":"12662823","geom:area_square_m":4837000.689232,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"FR","counts:names_languages":0,"geom:bbox":"5.9761589675,49.2074872995,6.00956587611,49.2424236476","wof:superseded_by":[],"wof:supersedes":[],"wof:geomhash":"ded15b99cfe02a7585096fc2bb839947","wof:parent_id":101828221,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"edtf:cessation":"uuuu"}