48734 is a postalcode and its consensus geometry is derived from uszcta.
{"mz:is_ceased":0,"geom:latitude":43.354391,"wof:name":"48734","counts:names_total":0,"wof:placetype":"postalcode","mz:is_current":1,"wof:hierarchy":[{"continent_id":102191575,"country_id":85633793,"county_id":102083725,"localadmin_id":404508791,"postalcode_id":554724483,"region_id":85688599}],"mz:is_deprecated":0,"lbl:latitude":43.357562,"geom:area":0.011804,"geom:longitude":-83.744357,"wof:id":554724483,"counts:concordances_total":1,"geom:type":"Polygon","wof:lastmodified":1611183747,"wof:belongsto":[102191575,85633793,102083725,404508791,85688599],"wof:concordances":{"gp:id":"12778964"},"wof:repo":"whosonfirst-data-postalcode-us","src:geom":"uszcta","wof:country":"US","counts:names_preferred":0,"geom:area_square_m":1.06127279803307E8,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"US","counts:names_languages":0,"geom:bbox":"-83.8175,43.296145,-83.66506,43.414408","wof:superseded_by":[],"wof:supersedes":[],"lbl:longitude":-83.74851,"wof:geomhash":"65d4f9425f817d476c41c8065bce3bd9","wof:parent_id":404508791,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"edtf:cessation":"uuuu","mz:postal_locality":"Frankenmuth"}