46635 is a postalcode and its consensus geometry is derived from uszcta.
{"mz:is_ceased":0,"geom:latitude":41.714894,"wof:name":"46635","counts:names_total":0,"wof:placetype":"postalcode","mz:is_current":1,"wof:hierarchy":[{"continent_id":102191575,"country_id":85633793,"county_id":102086969,"localadmin_id":404501455,"postalcode_id":554722801,"region_id":85688709}],"mz:is_deprecated":0,"lbl:latitude":41.714357,"geom:area":8.79E-4,"geom:longitude":-86.208518,"wof:id":554722801,"counts:concordances_total":1,"geom:type":"Polygon","wof:lastmodified":1611183244,"wof:belongsto":[102191575,85633793,102086969,404501455,85688709],"wof:concordances":{"gp:id":"12777837"},"wof:repo":"whosonfirst-data-postalcode-us","src:geom":"uszcta","wof:country":"US","counts:names_preferred":0,"geom:area_square_m":8112357.048497,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"US","counts:names_languages":0,"geom:bbox":"-86.231934,41.694489,-86.191073,41.745447","wof:superseded_by":[],"wof:supersedes":[],"lbl:longitude":-86.201743,"wof:geomhash":"5b06e01fefc5b378311adb92cf558e49","wof:parent_id":404501455,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"edtf:cessation":"uuuu","mz:postal_locality":"South Bend"}