49727 is a postalcode and its consensus geometry is derived from uszcta.
{"mz:is_ceased":0,"geom:latitude":45.130638,"wof:name":"49727","counts:names_total":0,"wof:placetype":"postalcode","mz:is_current":1,"wof:hierarchy":[{"continent_id":102191575,"country_id":85633793,"county_id":102083739,"localadmin_id":404507017,"postalcode_id":554725257,"region_id":85688599}],"mz:is_deprecated":0,"lbl:latitude":45.125273,"mz:postal_locality_alt":["Mackinac Island","Alanson"],"geom:area":0.041334,"geom:longitude":-85.10348,"wof:id":554725257,"counts:concordances_total":1,"geom:type":"MultiPolygon","wof:lastmodified":1611183261,"wof:belongsto":[102191575,85633793,102083739,404507017,85688599],"wof:concordances":{"gp:id":"12779511"},"wof:repo":"whosonfirst-data-postalcode-us","src:geom":"uszcta","wof:country":"US","counts:names_preferred":0,"gp:parent_id":"2347581","geom:area_square_m":3.6057981702708E8,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"US","counts:names_languages":0,"geom:bbox":"-85.223679,45.011806,-84.94255,45.286299","wof:superseded_by":[],"wof:supersedes":[],"lbl:longitude":-85.105817,"wof:geomhash":"0b3b4c57149e5018231f8933d7a64a04","wof:parent_id":404507017,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"edtf:cessation":"uuuu","mz:postal_locality":"East Jordan"}