27770 is a postalcode and its consensus geometry is derived from frgov.
{"mz:is_ceased":0,"geom:latitude":48.824994,"wof:name":"27770","counts:names_total":0,"wof:placetype":"postalcode","frgov:DEP":"27","frgov:ID":"27770","frgov:_COL6":364.051,"mz:is_approximate":1,"wof:hierarchy":[{"continent_id":102191581,"country_id":85633147,"county_id":102069007,"empire_id":136253037,"localadmin_id":404407349,"macrocounty_id":404228055,"macroregion_id":1108826393,"postalcode_id":421299915,"region_id":85683283}],"mz:is_deprecated":0,"frgov:SURF":20.714613,"geom:area":0.002545,"geom:longitude":1.259588,"wof:id":421299915,"frgov:LIB":"Illiers-l'vque","counts:concordances_total":1,"geom:type":"MultiPolygon","wof:lastmodified":1496507616,"wof:belongsto":[85683283,102191581,85633147,404407349,404228055,1108826393,136253037,102069007],"wof:concordances":{"gp:id":"12724051"},"wof:repo":"whosonfirst-data-postalcode-fr","src:geom":"frgov","wof:country":"FR","counts:names_preferred":0,"frgov:POP2010":991,"gp:parent_id":"12638462","geom:area_square_m":2.0716132253481E7,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"FR","counts:names_languages":0,"geom:bbox":"1.2195308408,48.8011667429,1.30962706302,48.850281985","wof:superseded_by":[],"wof:supersedes":[],"wof:geomhash":"7ea1604458765f626270a39360141758","wof:parent_id":404407349,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"edtf:cessation":"uuuu"}