56342 is a postalcode and its consensus geometry is derived from uszcta.
{"mz:is_ceased":0,"geom:latitude":46.181311,"wof:name":"56342","counts:names_total":0,"wof:placetype":"postalcode","mz:is_current":1,"wof:hierarchy":[{"continent_id":102191575,"country_id":85633793,"county_id":102087811,"localadmin_id":404509161,"postalcode_id":554730263,"region_id":85688727}],"mz:is_deprecated":0,"lbl:latitude":46.183805,"mz:postal_locality_alt":["Wahkon"],"geom:area":0.063682,"geom:longitude":-93.408133,"wof:id":554730263,"counts:concordances_total":1,"geom:type":"Polygon","wof:lastmodified":1611182755,"wof:belongsto":[102191575,85633793,102087811,404509161,85688727],"wof:concordances":{"gp:id":"12782430"},"wof:repo":"whosonfirst-data-postalcode-us","src:geom":"uszcta","wof:country":"US","counts:names_preferred":0,"gp:parent_id":"2347582","geom:area_square_m":5.45202236114367E8,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"US","counts:names_languages":0,"geom:bbox":"-93.559412,46.010536,-93.173448,46.333914","wof:superseded_by":[],"wof:supersedes":[],"lbl:longitude":-93.368993,"wof:geomhash":"d315021d838595a3648858130d90efa6","wof:parent_id":404509161,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"edtf:cessation":"uuuu","mz:postal_locality":"Isle"}