56763 is a postalcode and its consensus geometry is derived from uszcta.
{"mz:is_ceased":0,"geom:latitude":48.808917,"wof:name":"56763","counts:names_total":0,"wof:placetype":"postalcode","mz:is_current":1,"wof:hierarchy":[{"continent_id":102191575,"country_id":85633793,"county_id":102087665,"localadmin_id":404512799,"postalcode_id":554730769,"region_id":85688727}],"mz:is_deprecated":0,"lbl:latitude":48.815298,"mz:postal_locality_alt":["Grygla"],"geom:area":0.077276,"geom:longitude":-95.356408,"wof:id":554730769,"counts:concordances_total":1,"geom:type":"Polygon","wof:lastmodified":1611182743,"wof:belongsto":[102191575,85633793,102087665,404512799,85688727],"wof:concordances":{"gp:id":"12782691"},"wof:repo":"whosonfirst-data-postalcode-us","src:geom":"uszcta","wof:country":"US","counts:names_preferred":0,"gp:parent_id":"12588864","geom:area_square_m":6.29284166621144E8,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"US","counts:names_languages":0,"geom:bbox":"-95.5053,48.590103,-95.11219,48.999151","wof:superseded_by":[],"wof:supersedes":[],"lbl:longitude":-95.360862,"wof:geomhash":"3b08f5866f91ebeba40efa5c3f40adb0","wof:parent_id":404512799,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"edtf:cessation":"uuuu","mz:postal_locality":"Warroad"}